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Here I would love to share with you our travels and adventures as international mushroom consultants. MEMOIRS about husband Pieter Vedder, who was a SCIENTIFIC PIONEER in Mushroom Cultivation Education. His practical handbook is in 9 languages and is called the MUSHROOM BIBLE: https://mariettesbacktobasics.blogspot.com/2020/08/modern-mushroom-growing-2020-harvesting.html
Showing posts with label Mushroom Quality Criteria. Show all posts
Showing posts with label Mushroom Quality Criteria. Show all posts

Monday, April 24, 2023

Team Vedder and Our North Dakota Adventure

Yep, Team Vedder as—VEDDERS CONSULTANTS—got all kind of requests.
Our # 10 Consulting trip brought us to North Dakota where we were going to work for a mushroom farm facing bankruptcy.
On Saturday, January 9, we both left by 1:30 PM for the Atlanta Airport (a good 2 hour drive). 
Our flight went via Minneapolis/St. Paul to Grand Forks in North Dakota where we arrived by 8:50 PM.
On one of the Campbell Soup Seminars that Pieter did in October 1992—the owner had begged Pieter to come to his small mushroom farm in North Dakota—he was desperate!
They made their own compost, had 1 tunnel and 5 growing rooms of 400 m² built by the Dutch company Huub Aerts.
More than likely the son of a Pennsylvanian mushroom grower that liked to leave his Dad's old farm—sorry for his Dad—will come to manage the farm.
Don Dusek came to pick us up and together with him, another hour driving the 60 mi (96.5 km) to our Motel in Park River, North Dakota.
We both slept well and on Sunday, January 10, Don Dusek came to our motel and had breakfast with us. We went to Church with him in Pisek, together with his son and daughter—all Catholic Czechs. 
Next we had lunch and went to the mushroom farm till 3:30 PM.
There was a lot of snow and it was –25°F or about –32°C with a daytime temperature of –5°F or –20.5°C. 
By 5:00 PM we went together for supper to Ron (3rd generation Norwegian) & Renae, together with Steve.  
We got an old car from Don and we both returned to our motel.
Monday, January 11, the day started with an empty battery! Someone from the farm came over. 
After our breakfast at the Guest House we head to the farm to work.
Very busy day with the 9 harvesters. 
Pieter does some training  in the afternoon after first going over the farm.
We had supper at the guest house.
Tuesday, picked with the harvesters and visited them individually training and correcting—they opened up and start to follow my training and it goes well!
For lunch we got stuck in the snow with that old car—due to having gotten off road!
No telling where the road ends—with such a layer of snow... We don't live there.
After work we have supper at the restaurant of our motel: Don, Ron & Renae, Steve and both of us.
Wednesday January 13, Steve departed this morning, back to Pennsylvania. 
Both of us continue with our training. Very busy and working over time in room 4...
We both have supper at the motel at Alice's.
Thursday, January 14. Don's old car broke down and he came to pick us up in his pickup. 
Don was quite a figure! He actually has a gravel business! 
He went on to tell us a nice story. They were at the gravel extraction site, stone breaking when suddenly bones and skulls appeared...
They stopped and called the police as they first thought about a possible murder case.
As a result they halted the entire enterprise for days and eventually the investigation led to ancient Indians—no murder case and it all had cost him some US $ 40,000. 
So he gave his people the instruction: Whatever you see, keep grinding!
Another routine work day and we picked off room 4 entirely and cleaned the beds by removing any stumps and debris. Good feeling!
Friday, January 15, we packed and had our breakfast with Don and he drove us around for seeing a potato grading company, to which Ron was connected. That was quite impressive!
In water through concrete canals under the road they transported them into large sheds where they got sorted and bagged—heavy work! 
Too bad we had forgotten to bring our camera for this trip...
It was so huge that for every American they had 2 kilos or 4.4 pounds in stock—so impressive!
By 10:30 we did a slide presentation for the harvesters.
Farewell to a satisfied group.
My ONLY paycheck were red roses with ferns and baby's breath + card!
Thanks!
You went all out...
...and
The results were outstanding!
Training by Pieter for the men till past 7:00 PM.
Then we had dinner with them, including Sherry their daughter.
Saturday, January 16, we briefly went to the farm and Duane is now also caught up.
At 11:00 AM take off from Grand Forks and via Minneapolis/St. Paul to Atlanta.
Home by 7:00 PM and reading our mail with the fireplace on.
Just received one more letter from Ron Monson, dated January 23, 1995...

That was our North Dakota adventure!
It was quite a surprise that on Facebook one of our mushroom friends reacted to this photo from April 23, 1983 when Campbell Soup flew both of us from Camden, New Jersey to Dublin, Georgia in their corporate Learjet—40 years ago!

Still grateful for being able to read such feedback about our training after 40 years.


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Thursday, March 23, 2023

5th North American Mushroom Conference Pieter J.C. Vedder FROM CASE HOLD TO FIRST BREAK

 On March 10, 1985 after getting back from Tijuana, México we got ready for the reception of the 5th North American Mushroom Conference in San Diego, California
See below post about previous posts.
Reception where we met Pieter's Campbell Soup colleague Aron Kinrus (l) and his wife Shyfra (r).
The couple where both of us stayed for a couple of weeks before our Exodus from Pennsylvania, USA...
See post below.
Aron took this picture from the three of us...
On March 12 lectures about CROP MANAGEMENT
Pieter presented at 11:10 till 11:30—CROP MANAGEMENT FROM CASE HOLD TO FIRST BREAK
Pieter did very well and got lots of applaus and there were many in the audience.
Pieter to the left before being introduced as the next speaker by Jim Yeatman.
Jim Yeatman did visit us in Dublin, Georgia on August 10 the next year, with someone from South Africa, see post below.
Always a very interesting schedule...
On March 12 we woud end the day with DINNER AND DANCE in the Grand Ballroom
SPEAKERS & PARTICIPANTS
CONFERENCE SPONSORS
Feeling relaxed after Pieter's presentation and enjoying the Dinner–Dance
Lots of glare and even Pieter's suit got totally affected...
Again lots of glare...
But Pieter sure felt happy and relaxed after having given his presentation in the morning...
Grateful to Chairman Geoff Price for providing us with this Mushroom News September 1985 publication!
Thank you letter to Pieter:
Your presentation, "Crop Management From Case Hold to First Break," was well received and certainly contributed to the success of the conference. Your personal time and effort in preparing your talk were evident and appreciated by the committee.
Again, thank you for your contribution.
Sincerely,
Edward A. Leo
Vice Chairman, 5th NAMC
~
Casing to First Break
Pieter J.C. Vedder, Camsco (Campbell Soup) Produce Co., Dudley, Georgia
Presented at the 5th N.A.M.C. in San Diego.
In a short time I just can give you some ideas about what I think is important to reach the goal (not an easy goal) of a high yield with a good quality. Whatever growing system you have, what we all need first at the moment of casing is a good full grown compost with a moisture content of 63–66%, a pH of around 6.5 and a total nitrogen of let's say 2.2%. Because of the variation in ash content we maybe better talk about a C/N ratio of about 16 at spawning.
The plastic which was protecting the surface of the compost during spawn run from drying out and from contamination, has to be removed one or two days prior to casing to give the condensation water the opportunity to disappear.
Green molds on the surface are a sign that the compost is not selective enough, they show us that there are more easily degradable carbohydrates available because of an improper Phase I and/or Phase II, or we brought them in with the spawn grains or supplement. For that reason I don't like a heavy surface spawning; that means more as 10%. In spite of the development of different so–called slow release supplements, I prefer supplementing at spawning (if possible, of course). It is also much easier to manage the compost temperature if there is a wet casing layer on top, because we can create evaporation, which means cooling. We know that the best protection against competitor molds is a strong antagonism, buit up by the mushroom mycelium during a vigorous spawn run. I suppose that for the same reason we will have less problems with nematodes, molds, etc. and the yield will be higher after a 14 day spawn run as compared with e.g. 10 or 11 days.
I prefer a not too fluffy, somewhat heavy, casing material with a certain "body," because that has, in my opinion, a positive effect on the quality of the mushrooms. Very important also is that the material has a good water holding capacity. A mixture of not too fine peat moss and e.g. 20–25% spent lime, a by–product of the sugar industry, gives nice casing material. We prefer a pH in the 7.2–7.3 range for our casing material. It is much easier to maintain the right, high moisture content if the casing layer has a depth of at least 1 ½ inch (3.8 cm) or even better 1 ¾ of an inch (4.5 cm).
To produce a good quality mushroom with a better shelf life and also to avoid blotch, etc., we don't like to water the beds for a certain period of time prior to harvesting. That means that we need a moisture reserve in the casing layer, especially for a heavy first break. Growers often talk about the need for material with a better water holding capacity. The easiest way to increase the water holding capacity is to make the casing layer somewhat thicker. (This will change maybe with the new synthetic polymers recently available on the market).
Although it is known that the mushrooms take most of the water out of the compost, a firm casing layer with a good water holding capacity is very important.

In my opinion, in most of the cases the disadvantages of steaming the casing material are still bigger than the advantages. Steaming makes the casing material more sensitive for a new contamination; is affecting the water holding capacity and structure negatively and cost a lot of money on top of that. If the casing material is heavily contaminated with bubble, nematodes, or something like that, we should search for another source or revise the farm hygiene. With a good sanitation program and a vigorous spawn run there is most times no need for this costly technique.
The consequence of filling the trays or beds with fully grown compost or supplementing at casing is that we disturb and damage the mycelium in the compost. We have to give the mycelium some time to recover and re–colonize the compost surface, so better we don't water heavily just after casing. I prefer therefore a casing material with a moisture content of at east 75% or even more. (Of course if we are able to handle such a wet material).
The objective for the first couple of days after casing is to get a good inter–connecting mycelial growth between the compost and casing. As long as the casing material is not really saturated we have to water the beds several times in the days after casing. It is very important however that excessive water is not added which will run through the casing and rest on top of the compost, thereby causing a delay in mycelial growth and creating a somewhat greasy layer ideal for e.g. nematodes. This is possibly the main reason for a well wetted material at the time of application to the beds.
A somewhat sealed surface the first week after casing seems to be preferable. A high level of metabolics, produced by the growing mycelium, seems to stimulate the micro–organisms in the casing layer, which have a positive effect on fructification. After casing, we should manage the air temperature that way that the main part of the compost and casing material is in the 76–80°F (24.4–26.6°C) area. For the vegetative stage, we prefer a high relative humidity and also a high carbon dioxide concentration; high means above 3000–4000 PPM or even higher. Ventilation, that means supplying fresh air, is therefore only necessary if the compost temperature is rising too high. 
This sometimes creates a problem. If the temperature, for whatever reason, is rising too high 6–7 days after casing, one has to open the vents to bring the bed temperature in line. This however often is initiating fructification rather deep in the casing layer. If we flush again, then we initiate a second layer of pins over the deeper formed first layer, thus the so–called double pinning. To avoid this problem we should have the opportunity for internal cooling without using fresh air. What we can do if we do not have that possibility is cool down the beds till e.g. 70°F (21°C) at day 5–6 so that we have some extra time to keep the room closed prior to flushing.
Very important in relation to this problem is a good selective compost and spawn run of at least 14–15 days. For this reason, it possibly will be better to stay away from supplementing during the summer. High temperature spots are normally not the result of the growth of the mushroom mycelium but are most times showing the activity of competitor molds, indicating a lack of selectivity as the result of an improper Phase I and Phase II.
We all are looking for a good first break, say around 2.5–3.0 lbs per square foot, and at the same time, a good quality mushroom.  You can only have this if the mushrooms are spread very even over the bed surface; no clumps, or heavy clusters and no bare spots. With traditional casing methods, the arrival of the mycelium at the surface 6–7 days after casing tends to be uneven, and a compromise between advanced and backward parts must be reached. Shallow patches will show mycelium at the surface well in advance of deep areas.
In relation to this problem, we have good experience with the deep scratching or ruffling technique. As soon as the mycelium has developed about three quarters of the way into the casing layer, which is most times the case 5–7 days after casing, we mix in the mycelium and by doing so, simultaneously break up the surface compaction. An equal distribution of mycelium throughout the casing layer ensures that all mycelium at the bed surface is at the same stage of development. As a result, competition among mushroom initials is equalized, allowing even development without clumping or under pinning.
We have to realize that deep scratching or ruffling cannot compensate for an uneven compost and/or casing layer. Lack of evenness at the bed surface is most times created at filling or spawning. Patching or dust–covering is in my opinion not a good solution for this problem.
The modern shelf beds with metal side boards give of course the best opportunity for leveling and deep scratching and as the result of that, an even break. Even watering can be mechanized then.
After scratching, we have to give the mycelium the opportunity to restore and come up to the surface of the casing layer. To reach that goal, we maintain the optimum climate for the vegetative growth, so high CO₂ level, high relative humidity, and temperature in the mid 70's (24°C) for another 24 or more hours.
Fructification is the result of a combination of different factors as there are; temperature, CO₂–concentration, relative humidity (that means evaporation rate), micro–organisms, etc.

To ensure the occurrence of clean mushrooms, initiating of fruit bodies should occur on or near the surface of the casing layer. The flushing technique depends not only on the strain, but also on the ability to control the environment. With the strain we grow, we prefer a somewhat soft flush.
We don't like over pinning, 66 pieces per pound instead of 30, but on the other hand, to get the necessary quantity in the first break, let's say between 2.5 and 3.0 lbs., we need a certain number of fruit bodies. As a rule of thumb, we can say that lower temperatures and lower CO₂ concentrations give more fruit bodies. Stroma is most times the result of high CO₂ concentrations, high relative humidity, and too late flushing.


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Part III - Highveld Mushrooms in Bryanston, South Africa | previous post by me with photo of Jim Yeatman visiting us at our home...

Sunday, February 5, 2023

1985 Campbell Mushroom Plant Designed by Pieter J.C. Vedder

 Found this excellent short video that Pieter took in 1985 from the Campbell Mushroom Plant that he designed.


Of course I had to design the window decoration with mushrooms in—and then did hand crochet it.

If you view this 1:53 minute video on YouTube there are clickable links below with info.


This photo is from March 1984, with the hand crocheted window decoration with mushrooms hanging.
But no landscaping being done yet!


Husband Pieter at his desk and you can better see those mushrooms—first quality and broad stems as per mushroom quality criteria!


Sure my Mauzie girl approved ot those mushrooms!
She watched me crochet them... as well as knit the hand embroidered cardigan I wear.
This aerial view of CAMSCO's Dublin, Georgia, farm shows the standardized growing rooms, the tunnel complex and the covered wharf in the background.
As published in MUSHROOM NEWS JANUARY 5, 1985
The growing room doors at Dublin are moveable to accommodate filling with the head–end filling machine.
The working corridor is shown as construction neared completion at Dublin.


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Thursday, August 25, 2022

Some thoughts about training and farm management on a mushroom farm by Pieter J.C. Vedder

Well, digitalizing everything is quite a task and I've managed to do so with a few of husband Pieter's lectures at a Congress.
BUT I only recently found the tape from the 12th NAMC CONFERENCE, VANCOUVER, BC
The Conference theme was: A BLUEPRINT TO PROFIT
Still VERY TRUE for today's mushroom farms!
Did manage to make it digital for archiving, with the exception of only ONE missing sentence, at the beginning of Tape B but my Pieter has used his present voice for speaking those words!

Don't forget to click on 'CC' for seeing English caption...

~
July 16, 1996 at 8:15 — This is Murray O'Neil, I have the honor to share this initial session Tuesday morning. I am from Leamington, Ontario —Highline Produce. We're going to be dealing with the general question of human resources. An area which I'm afraid, has not been handled as well as it might have been over the years by the mushroom industry. Mushroom growers like to grow mushrooms and need to be encumbered by other matters such as people concerns, marketing concerns, etc., and it behooves us to recognize the need for taking care and taking very careful care of our human resource. 
Any industry that finds its cost expenditures are more than 50% involved with paying and meeting payroll, has best be looking to its human resource story and have good people around to take care of human resources.
Our first speaker this morning is certainly well known to all of you: Pieter Vedder and I read his bio because it is very interesting.
He was born in 1929 in The Netherlands, son of a market gardener and he studied horticulture and horticultural engineering in Wageningen and he has a degree in teaching. 
PJC Vedder's 1987 Design for NEW COMPOSTING SYSTEM (Phase I) ←info about his Wageningen University & Research education)
He began to work for the Dutch government in 1955 as an extension service officer, to help develop the Agro Industry in the southern part of The Netherlands. He has a special interest in mushroom cultivation and got involved in mushroom research and training.
He worked under the legendary Drs. Pieter Bels and his wife (Dr. Henriette Bels-Koning) at the Dutch Mushroom Experimental Station in Horst for several years.
In 1963 he established the world's first Mushroom Growers' Training Center in Horst where he has been the director for almost 20 years. He wrote a book about mushroom growing, called: Modern Mushroom Growing which I think was initially published in English in about 1981 (No, initially published in Dutch in 1961 and in English in 1978).
I am not sure about that date and has been since translated into 8 other languages.
He has been co-author of other publications as well, about the cultivation of edible mushrooms.
In 1982 he received the Sinden Award, in recognition of his contribution to the Mushroom Industry.
In 1983 he accepted the function of Vice President Training and Development for Campbell Soup Mushroom Division and moved to the USA. In that function he traveled all over the USA and the globe, lecturing, visiting farms, research centers, etc.
Pieter JC Vedder and his constant companion less then two months after congress.
His wife Mariette, his constant companion, has developed herself as an expert in the field of mushroom harvesting, post harvesting and quality control. And she has certainly been a great opp (opportunity) to a number of farms including ours, in that capacity.
The standard abbreviation for 'opportunity' is 'opp'.
She re-organized harvesting, introduced training programs at big farms in various other countries.
Since March 1989 both started working for Funghi del Montello, the biggest mushroom producing company in Italy.
In March 1990 through April 1992, they worked together in Indonesia at the biggest mushroom farm in the world. They commuted from Dublin where they have again taken up residence.
In 1993 both became American Citizens and although retired, together they still do international consulting.
I don't think they really know what the word retired means.
Their favorite hobbies are gardening the Dutch colorful way, as well as photography and music. 
Mariette also imports and sells special gift items from different countries.
I like to present to you, Dr. Pieter Vedder who is going to talk about training the key to success.
Pieter is wearing the exact same silk Burberry suit that he wore for this lecture...
Pieter...
~
Mr. Chairman, ladies and gentlemen.
Thanks first of all for the invitation to have the opportunity to be here in British Columbia, beautiful British Columbia. 
Every time we are here in this area, we have special feelings because quite a while ago my daughter was born here, in Terrace, British Columbia.
As most of you already knew, or as you just have heard in the introduction, I have spent indeed most time of my life, almost forty years, in the mushroom industry; mainly in extension service and training. And besides that, as trouble–shooter, consultant.
And as Mr. O'Neil told you, my wife Mariette is also in the same business, and she is specialized in harvesting, quality assurance and so on. And most often we work and travel together. And indeed, I am retired now but you all know if you are really infected, it seems to be very difficult to get rid of that addiction.
In those different positions, and over such a period of time, we could say that we have seen it all; good and bad, right and wrong. And therefore, I appreciate today's opportunity, to share with you some of my thoughts and experiences in those fields, I like a good discussion and there is always a chance that you pick up an idea.
Talking about experience, there constantly should be one thought in the back of our mind, like this saying:
If we don't learn from our mistakes, there's no use to make them.
If we don't learn from our mistakes, there is really no use to make them.
First of all, today I like to take the opportunity to convince you, if that's still necessary, that the key for making a mushroom operation successful or as you say 'the blueprint for profit' , is having a number of well trained, skilled, but above all, very dedicated people, working as a team.
There are numerous examples of how important people are in making a mushroom farm into a profitable business. 
As I've said already many times in the past; mushrooms don't grow on aluminum racks but on well–prepared, nutritious compost, whether that compost is in a plastic bag on a bamboo shelf or packed in a brand–new plastic tray or metal rack. 
We have to realize that mushrooms don't grow better after the installation of a computer as long as e.g. the compost or casing layer is bone–dry or the distribution of the supplement is very poor.
Several bigger mushroom producing companies have different growing facilities, ranging from old American doubles, to the most modern type, high investment farms, complete with tunnels, aluminum shelves, including the most sophisticated computer–controlled air–conditioning system etc.
Now ask around, what kind of farms over the years have been the money–makers.
Ask them if the most sophisticated farms as a matter of course, have also been the most profitable ones.
I know the answer. I know that sometimes it is even the opposite; the old, entirely written–off old tray–or bed–farm is still making some money while the most sophisticated new one has a hard time to break even.
It is obvious that in the first place, the people, running the farm, are the determining factor and not so much the technical qualities of the facility.
We all know that a mushroom farm will more than likely have its ups and downs; periods, with high yields and good quality product, will alternate with less profitable times, up to even deep trouble, because of virus, green mold or any reason whatsoever.
A good question then in this respect could be; do we see more constant yields or less problems on the most sophisticated farms?
In my life–time I have seen hundreds of mushroom farms and perhaps thousands of crops in countries all over the world. 
Most often we are called to do some training or a farm review, when there is a problem, whether there is a severe virus outbreak or just low yields or poor quality for whatever reason.
By experience I can say that as much as 60–70% of the cases, or even more, the problems are related to compost–quality.
In such a situation it hardly makes any difference whether the farm is old fashioned or state of the art.
Temperature 62°F or 16.6°C
Poor quality is more related to crop–management for instance by creating over–pinning and even more so with the harvesting technique then with the facility.
We can see over–pinning, bone–dry beds or trash underneath the beds on the floor, on old–fashioned farms as well as on the most modern ones.
If we start picking too late in that first break, we will end up with poor quality and even the most sophisticated and computerized climate control system cannot change that because this is a management problem.
Again, most often, the limiting factor seems not to be the facility but the people; whether making the right or the wrong decision or doing a good or a sloppy job.
An important question then is; why do people sometimes do a poor job and why once in a while they make the wrong decision?
Is it because a lack on theoretical knowledge, practical experience or is it more a question of attitude, a lack on dedication or interest or a little bit of everything?
One of my long–time friends in the mushroom business, Jörg Kuhn from Switzerland, said it already years ago. "On our farms often it is not so much the question that we don't know what to do but just get it done, day after day after day!"
We have to ask ourself why for instance we are making sometimes such a poor compost, after a period with almost perfect material and good yields?
Was it because all of a sudden we forgot the right formulation or we did not know anymore what the proper nitrogen–level should be or what the most ideal moisture–level for that kind of compost is?
It seems to be, that we rather well know how to make a good compost because we have done it many times before.
The main reason that we slipped away more than likely will be that we were not aware that for instance the weather conditions were changing or the ingredients were different from last time.
Or perhaps we let composting become too much of a routine. 
It also could be that somebody came up with a brilliant idea and changed a number of things himself, without any good reason, and not realizing the consequences in full.
In that case there are a few more questions to answer. 
Was the farm manager aware of the changes and did he agree?
Or, as we by experience find in most cases, the farm manager did not even know that somebody made those changes.
And this can happen, mainly because he likes to manage that operation from behind his desk and he is not enough on his feet and therefore he really is not in touch with what is going on at the farm or on the compost slab.
Perhaps there are too many meetings going on; meetings about safety, pesticide–application, etc.
All important but they result in taking away the people from their number one job and number one responsibility.
Again, if the yields are low and the quality poor, we mostly like to blame the facility and the equipment but more often it is the people and in particular; management.
Of course, a good compost–turner or a pre–wet machine can help a lot to make a good compost but only if there is somebody behind that machine who knows to operate it and who is willing to pay full attention to his job; again day after day.
Even the most expensive compost–turner cannot change the moisture–level of the substrate and even the newest pre–wet machine can chop up the straw in too short pieces if it is running too fast or used three or four times in a row, with already brittle straw.
Of course, a sophisticated climate–control system can help to create a better growing environment for the mushrooms, but only if the people who have to work with it, do know how to use it.
That high–tech climate–control system for instance cannot solve the hot–spot problem, created by over–filling, or poor supplement distribution or poor mixing. 
So, before making a decision on investing quite a bit of money in new technology, or sophisticated equipment, we perhaps should think first about investing in people. I am convinced that the money spent on training and improvement of the team spirit and the working conditions will be guaranteed to have a better pay–off.
One of the main reasons that for instance new big mushroom farms, build for different investors in for instance just to mention a few countries, India, or Mexico or Indonesia, often had a hard time to survive, is the lack on knowledgeable, well –trained, well–skilled people to run that farm.
It almost sounds as if I am against new developments or against high–tech facilities. 
Hillsboro Texas farm that Pieter JC Vedder designed for Campbell Soup
That's for sure not the case; you should know better. I have been strongly involved in a number of them, but the point I try to make is, that the introduction of a sophisticated, new system or a modern piece of equipment, will not automatically solve a problem or will result in higher yields; the people have to do it.
We all know that if we start picking too late in the first break that this will have a very negative impact on the quality of the product.
Therefore, if we see that kind of poor mushrooms with long stems and stretched veil and partly already open, the conclusion could be that we have to spend more time and effort in training the harvesters; the pickers.
This might be true but perhaps the first person in need of training, is the one of the staff people who is holding the pickers off from starting picking in time, believing that the yield will be quite a bit higher that way and that is what he is most interested in.
However, we cannot put all the blame on that person for this behavior because it is often the biggest part of the system which is wrong.
The incentive systems are mainly developed years ago, in a period that most of the farms were just quantity–driven; the more, the better.
However, that philosophy doesn't work anymore, on an already saturated market where buyers are more and more just interested in quality, we have to have a different approach.
The situation has changed dramatically.
It is well–known in the mushroom world that the Dutch mushroom growers have often been ahead in the industry. Although most of the farms in The Netherlands are small or medium size, they still can have the advantages of the bigger scale producers because of their strong organization–and also their high standardization–level. 
This standardization does not only apply to the facilities, like the size of the tunnels or the width of the shelf–beds but also includes the compost–and casing–preparation and most of the growing techniques. That makes training and guiding of the Dutch growers quite a bit easier and also more effective.
Almost everybody has the same type of facilities; is using the standard ingredients and is following more or less the same growing procedures. And all this makes a discussion about different subjects between growers in for instance a classroom, much more prolific.
Another important factor in the success of the Dutch training system is the availability of a well equipped and almost complete full–scale instruction farm, so that teachers and instructors are not just walking text–books but speak the growers' language!
They also can have the necessary practical skills and experience.
Another big advantage for the industry from having such a training center is the availability of a pool of young, well–educated mushroom growers. 
The Dutch Mushroom Growers Training Center is in my opinion a good example how a training system for the mushroom industry could be set up.
Also the Canadians have put quite a bit of money and effort into training activities. 
Everybody in the industry has to be convinced that each person who starts working on a mushroom farm in growing, should have a good understanding of the fundamentals of mushroom growing, including some knowledge about chemistry, physics, economics, etc.
If one has a good knowledge about the basics, it will for instance be much easier for him or her to make the proper decisions if the situation is changing, like for instance the effect of the outside temperature on the composting process or the interaction between the relative humidity, and the evaporation–rate and bacterial blotch. 
It is worthwhile of course to organize this kind of let us say high level seminars or conferences, but we should not forget the training of the workers.
Also especially for the somewhat smaller growers a problem in participating could also be that the organizers of those happenings appear to have a strong preference for rather luxurious and therefore expensive accommodations.
With respect for what researchers in different countries are doing for the industry, not all scientists are always good in making their findings understandable for a mushroom grower. Mushroom growers on the other hand often don't try to understand what researchers are saying. 
Trying to bridge that gap between researchers and growers
It is therefore in the interest of both parties that via training we are continuously trying to bridge that gap between researchers and growers.
A good teacher, who understands both sides, can be a perfect instrument to build that bridge of better understanding.
The bigger mushroom producing companies can afford to do the training of their employees themselves, although to my knowledge and experience, only a few of the bigger companies have a somewhat structured training program and as far as I know, none of them have a specialized teacher .
In most cases the young, newly hired employees have to learn from seniors; they will hopefully copy the good things but eventually the bad habits too. They will have a hard time to judge between true knowledge and fairy tales.
In countries with a relative big number of growers with small farms, the training of young mushroom growers has to be organized, whether by government or by growers organizations. 
Again, good examples of providing learning opportunities for growers are the Dutch, the Canadians and in a way also the British.
Here are in my opinion good opportunities for the supply companies, compost producers, spawn makers, etc. to offer workshops and seminars or short–courses to their customers; the way Campbell's Fresh is doing it already for several years.
The almost ideal situation should be if ambitious young growers could have an opportunity to learn the basics in a classroom situation, from some good professional teachers and the practical skills and daily work experience from a dedicated and experienced person in the field of compost preparation, crop –management, harvesting, disease control etc. on the farm.
One of the goals of the training has to be to learn the workers how to work smarter and more efficient, so that we can produce for the lowest costs.
Vocational training is a never–ending process, therefore the workers should have ongoing opportunities to participate in workshops, seminars, etc.
A problem in this area is that on most farms we are already short on people and therefore we think we can hardly afford the luxury of sending a few people for a couple of days, don’t even mention a couple of weeks, to short–courses or seminars. 
Here again though, we have to invest first, before we will be able to reap the benefits later. I realize quite well, that nowadays a mushroom farm cannot afford overstaffing but on the other hand we have to make sure that we are constantly training young fellows, so that we have a replacement if an experienced grower or compost–maker is leaving or retiring.
We experienced that on a number of farms the communication between the staff and the workers could be quite a bit better. A lack on team spirit will have a very detrimental effect on the performance of the individuals. The workers are uncertain because nobody exactly told them what to do, and let alone that they have told them how to do it and why to do it a certain way.
If we visit a farm and if we talk to some workers about how a certain job perhaps could be done easier or better, we too often hear as their comment that they have made that suggestion already several times but nobody paid attention, nobody was listening.
Such kind of comments are a clear indication that farm management has to work on improving communication and improving the team–spirit.
On a number of farms, especially the bigger ones, we know that the growing staff is spending too much time in the office and, as a result of that, loosing all kind of opportunities for on–the–spot training and also for motivating, correcting or stimulating their workers.
It quite often happens that, if we visit a farm and go over for instance the compost slab, accompanied by the manager, the area manger etc. that he has to ask one of the workers what the latest compost–formulation is or the newest turning sequence, or what tomorrow's fill is.
Here again; an area manager or supervisor, spending too much time behind a desk or a computer screen in the office cannot be a good teacher and motivator for his group of workers, because he does not know what really is going on in his area. He very soon will loose their respect and also his credibility.
On a number of farms the so–called staff–meetings are not so much more then a prolonged coffee break, hardly structured with a low discipline–level and therefore not so very efficient.
The production costs nowadays are so high and the margin is so slim that we cannot afford wasting valuable time anymore.
The farm–manager first of all should try to limit the number of meetings and has to prepare an agenda. By turn, somebody should take notes and each meeting should start with a short discussion of previous meeting's minutes. Are things being taken care of as promised to do so and what are the results? If it is not done, there should be a good explanation why not.
Meetings should preferably not be held in the morning that way taking away people from the farm at a time that they are needed most.
We should not restrict that kind of meetings to just area–managers or supervisors but let by turn always one of the workers participate. 
That is also a good learning experience and often surprisingly beneficial for both parties if we at least are willing to listen.
Knowledge and experience in a team has to be guided and organized in such a way that it fits in the total process; there has to be a certain discipline–level and the members of the team have to be also loyal.
It is a great thing of course that every worker on a farm has quite a bit of knowledge and experience about making compost, growing mushrooms. However, if the organization is weak and the communication poor, there is also a danger.
We have seen more often that some people, after for instance visiting another farm or going through a course or seminar, started trying to do some things different, on their own.
You only, as you know, need two or three people, each going in different directions, to create a situation on a farm where at a certain moment nobody knows anymore where to go.
If a farm is doing reasonable well, there really is no need for real changes, but there is always room for adaptation and some fine–tuning.
Suggestions for fine–tuning however have to be subject of groups discussion first, so that everybody knows about it and can do his or her part to make it a success.
For years, management has almost completely ignored the fact that the harvesters play such a key–role on a mushroom farm. 
Not only do they form a big part of the total labor cost but, even more important, they can make or ruin the product.
We do all that work; preparing a good compost, spawning, supplementing, water, develop new more white strains and then we let a bunch of harvesters ruin it. 
Now, under the pressure of a very strong, almost global competition, most farms start realizing that for a long time we have been too much quantity–driven in everything we did and that we forgot the most important marketing–issue; quality and presentation of our product.
OUR BUSINESS
CLOSED
DEPENDS ON QUALITY
Long term, the only way to have a profitable business is by producing a quality product.
We only know a few farms where they have an ongoing and structured training program for e.g. newly hired harvesters. Most often we give a new picker a knife, a rack and some trays and tell them where to go, so that they can watch and learn from their colleagues. 
With some luck, if his or her neighbor–picker is a good, well experienced one, there is a chance that he or she is learning it the right way, collecting fast a good quality product and leaving the beds undamaged and clean. 
More chances however are that he or she is already learning the first day how to rape the beds, bruise the product and pull up so much casing material, that he or she is picking the next break at the same time! 
Even the supervisors can't help them because they are not a good picker themselves. 
They have never learned it, they are just parading in the front part of the room and corridor with a note pad, punching holes in picking slips, babysitting the pickers or whatever.
Their hands are amazingly clean and they seldom view the top bed or the lowest bed in the back of the room.
Let me ask you; how in the world can somebody try to learn somebody else for instance to play the piano if the teacher can't play himself?
Can you imagine a situation where somebody is instructing you how to drive a car but he has to admit that, although he knows how it works, he never has driven a car himself.
Maybe this sounds somewhat silly but one can almost daily see this kind of situation on a mushroom farm.
Especially in the harvesting area we can find people responsible for training, organization and supervision of the harvesting, who themselves hardly or, even worse, never ever picked a mushroom themselves.
If you recognize this situation on your farm, you have to do at least a couple of things:
First, establish and ongoing training program for harvesters; for the new–comers as well as for those who don't reach the standards for pounds and/or quality.
The instructor in such a training crew should be the best picker on the farm with some communication skills.
You have to realize that for a harvest supervisor practical experience and the right attitude will do quite a bit more than a college degree.
The second thing for the manager to do is, review and re-write the job description of the harvest supervisor. 
More than likely for instance it will be more efficient and less costly to have runner–boys for collecting the product, punching holes and keeping track of picker performance.
The supervisor then can do what he or she actually should do; guiding, motivating and correcting the pickers, demonstrating what's the proper technique and explaining for instance why that small long-stemmed one has to be picked and why that bigger one with the broad stem still can wait.
The third important thing to do is reviewing your present incentive system.
Is it still based on volume, instead of quality? 
Thinking and talking about total yields, and pounds picked per hour, we shouldn't just brag about volume but more and more talk about market value. Under the present market conditions it could well be that a farm is making money with a 5½ pound yield (per square foot) and good quality and sizable fresh market product and that another farm is losing money with 6½ pound but poor quality stuff (and therefore more then likely high cost as well).
Our incentive system should create an attitude towards efficiency and quality first.
The ideal incentive system could be to make the farm a kind of profit center for everyone by profit sharing. 
Give the workers part of the profit but also give them part of the responsibilities.

To set some goals I like to ask you a few questions, important questions:

1. Do you agree that the only way to survive in the mushroom business is by controlling the costs and producing a high quality product?
2. Do you agree that the product quality is for a big part in the hands of the harvesting crew?
3. Do you quite often see a good product on the beds, prior to harvesting, but are you disappointed with what you see leaving from the packaging?
4. Do you agree that by far the biggest number of employees on a mushroom farm is working in the harvesting area?
5. Do you agree that mechanical harvesting can be a way to lower the harvesting cost for industry–or food–service type mushrooms, but that for a first quality fresh market product we still need well–trained human hands?
6. Do you agree that until now the industry has spent much more money and effort to increase the production and that quality, and that means for a big part harvesting, just has been treated as the step–child?
7. Do you agree that on a number of farms the harvesters ware controlling you instead of the other way around where you are in control of the harvesters?
8. Do you agree that poorly trained and careless harvesters can ruin the beds and do quite a bit of damage to the next break?
9. Do you agree that harvesters play a very important role in preventing or spreading diseases, like viruses, nematodes, green molds, etc.?
10. Did you ever find in a mushroom book a chapter about harvesting or a more or less all–round training manual for harvesters? (Mariette finally wrote one in cooperation with Sylvan).
Our newest publication: modern mushroom growing 2020 harvesting
11. Can you sum up how many lectures have been given on harvesting on all conferences, short courses, etc. over the last decade?
12. Do you agree that it seems to be much easier for a farm manager to justify for instance US$ 170,000 for a pre–wet machine versus even half the amount towards improvements in the harvesting area?

If you have to answer most of these questions with yes, you know you have some work to do after coming home from this conference.

Thank you very much.
~
Just as our long–time friend John Rodwell summed up here above:
so who could resist the venue of Vancouver in the summer, plus Jan Gerrits, Pieter Vedder and Hans Tschierpe heading a long list of knowledgeable speakers. Certainly over 550 delegates from many countries enjoyed the polished organisation and several days of good weather.
Published in the September issue of The Mushroom Journal, the British publication for the mushroom industry.


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