Mushroom Cultivation

Are you interested in mushroom cultivation on urban waste streams? We grow mushrooms on coffee grounds in an abandoned water park in Rotterdam. We can help you convert your local ‘waste’ into profit.

Get started with our free ebook

Free Ebook

We created an free Ebook to help you answer the most urgent questions on getting started with this business case. We cover more then 10 topics. Get it for free.

Free webinars

We regularly host free webinars to share the possibilities of this business case. Both the mushrooms and the coffee grounds offer a lot of opportunities for entrepreneurs.

E-learning program

Our E-learning allows you to work at your own pace, from your own house and have the content available for you when you need it.

New Mobile Mushroom Farm

We are currently constructing our new mobile and modulair mushroom farm. We will share the entire build through our YouTube channel. After we did an extensive field test, the units will be ready for sale. Interested in some of these mushroom units? Then drop us a mail.

"Siemen and Mark showed me everything from coffee collection, substrate preparation, room conditioning, harvesting, product development and a whole lot more. Therefore I strongly recommend everyone who thinks about starting a business as a mushroom grower, everyone who likes to grow mushrooms at home, or everyone who is interested in environmental issues and sustainability, to gain knowledge and be inspired by the awesome people at RotterZwam."

Florian Hofer
Founder Hut und Stiel

What our alumni say

We can tell we deliver great value, but we rather let our alumni do the talking. Check all testimonials on our YouTube channel.


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Mushrooms mysterious?
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