An appropriate title for a blog written on Easter Monday.

Normally the 7th day is a day of rest. Good for people after a week of working but not always good if mushrooms take a rest. Read: they stop growing. This can happen during the fructification and if the reaction of the grower is too slow, the flush grows out to be too small.

Fructification is split into two sections. 4 to 5 days for making the mushrooms or forming the primordia. The second part is roughly from day 5 till the start of the first flush. During the first part RH, ambient temperature and CO2 are the main parameters to control the number of primordia. Compost temperature is for me not that important at that time. After day 5 the RH is lowered to let the primordia grow out to be mushrooms. The CO2 is dropped slowly and we also start dropping the temperature to reach 17.5° C ambient temperature at the start of the flush (my favourite temperature to work with).

On day 7 one can see mushrooms developing in the size of 2 to 5 millimetres. And then this phenomenon can occur. You look during your morning check and everything looks good. The next day, nothing has happened. General reaction is waiting. But if you look carefully, in most of the cases the room is not taking enough fresh air. CO2 is okay, RH is okay, air temperature is okay and the compost temperature is declining. If the minimum fresh air setting is too low, the room can have a lack of oxygen and mushrooms just stop developing. Simplest thing to do is to drop the CO2 setting to 800 ppm for a couple of hours. To avoid this however and the best way to handle this, is to make sure that the minimum fresh air setting is around 25%. Then the climate unit will always use enough fresh air and mushrooms keep growing. By the way, this happens mostly with strains which tend to give bigger mushrooms. Because they already tend to give fewer mushrooms.


We are all experiencing difficult and challenging times. Times we have never experienced before and hopefully we can all recover from it. Our health is the most important thing to focus on as well as taking care of eachother. Maybe we are even more closer than ever!

This corona virus has besides to our health, also a large impact on mushroom businesses, hopefully you all have found ways to cope with it. Maybe even accelerate your innovation roadmap!

We as Mushroom Matter haved asked ourselves the question how we can become more closer and more meaningful to people around the globe during this period. So we are going to focus on the health benefits of mushrooms and make sure that the mushroom finds it's way to the consumer even more.

We are starting a positive mushroom campaign on our website and social media channels #mushroomsmatterforyourhealth and would kindly appreciate your help by sending us information you have on mushrooms and why they are so important for our health and future*. Please send us your input to This email address is being protected from spambots. You need JavaScript enabled to view it.

* information we are allowed to use in relation to GDPR and authorship


The immune system is made up of a network of cells, tissues and organs that work together to protect the body against infection and maintain overall health. Mushrooms, like other fruits and vegetables, can play a positive role in supporting a healthy immune system.

The 2015-2020 Dietary Guidelines for Americans1 emphasizes the importance of creating a healthy eating pattern to maintain health and reduce the risk of disease. Suggestions include:

• Make half your plate fruits and vegetables.
• Move to low-fat and fat-free milk or yogurt.
• Make half your grains whole grains. 
• Focus on whole fruits and vary your vegetables.
• Drink and eat less sodium, saturated fat and added sugars.
• Vary your protein routine.

Nutrients Important for Overall WellnessThere are a variety of micronutrients, as identified by the Linus Pauling Institute at Oregon State University2, that are important for supporting a healthy immune system including selenium and vitamins D and B6, which can be found in mushrooms.

Please read the full article here.


As COVID-19 tightens its grip on the world, more and more of us are naturally looking for ways to help stave of contracting the virus, whether it’s for ourselves, or to protect those around us who might be at higher risk of developing serious complications.

But while there’s no vaccine to ward off coronavirus (though scientists around the world are working tirelessly on creating one) there are some easy, natural steps you can take to strengthen your immune system to help you fight of this virus, and illnesses like it.

Read the full article here.

A new automatic picking lorrie was developed by Mush Comb with the focus on being absolutely picker friendly. Being friendly in use but for example also in maintenance. Each user confirms that the picking lorrie is remarkable easy made so no worries about for example hydraulic hoses breaking.

This started three years ago with Jasper Kanters from Kanters Paddestoelen. According to Jasper so far there was no picking lorries on the market which was friendly to work with. The practical growing and harvesting experience from a Dutch grower like Kanters was combined with the technology minded people from Mush Comb. A testing phase started which in the summer of 2017 resulted in 16 new automatic picking lorries.

It was the start of a new choice in picking lorries. First focus has been on automatic up/down picking lorries because growers saw most advantages in this function and often automatic forward/backward was not being used so why bother this extra investment.

In 2019 the product range was still expanded with full automatic up/down and driving to meet the requirements of each potential grower.

According to Bob Holtermans not only the high picking efficiency, high safety standard, practical use and low maintenance are the reason for the high demand of these picking lorries. It is in combination with the flexibility of Mush Comb. Because although the automatic picking lorries are made from the same basic principle each mushroom grower gets their own unique picking lorries. Customers have the possibility to consult with the engineers of Mush Comb with regard to packaging sizes, door spaces, etc. This to create the optimal working tool when it comes to assisting in the harvest.

The proof is given by all the growers which were convinced and have bought this new harvesting tool. Growers like:

  • Kanters Paddestoelen, Netherlands
  • Pleunis Mushrooms, Belgium
  • Jacobs Champignons, Netherlands
  • Peeters-Luyten, Netherlands
  • Lesage Champignons, Belgium
  • Van Nieuwenhoven-Steijvers, Netherlands
  • Vandechamp, Belgium
  • Agarica, Netherlands
  • Champignonkwekerij Dingemans, Netherlands
  • AK Champignons, Netherlands

Meaning the top of the manual harvesting industry in Netherlands and Belgium are convinced. This part of the world is still seen as great example for the rest of the world. Reason enough for growers worldwide to step in the footsteps of these great Dutch and Belgium mushroom growers.

Contact info from Mush Comb can be found on


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