About us
rotterzwam believes in a society that closes cycles, makes maximum use of raw materials and consumes more vegetable than animal proteins.
We do this by collaborating locally, regionally, and internationally to stimulate and facilitate the production of mushrooms from local waste streams.
The result is a wide range of products and services related to mushroom production, awareness and delicious snacks made from 100% vegan products.
Blog

Making the food chain circular together: this is how Lokalist and rotterzwam do it
Rotterzwam and Lokalist join forces for a sustainable food service What do you do with all that coffee grounds left over after brewing a cup of coffee? Most companies simply throw them away, bu...

Six Months With Mushrooms: Neja's internship experience
"During my internship at rotterzwam I learned all about making substrate for mushrooms and the best circumstances in which they grow. I especially liked all the research we did with Lion's Mane, be...

The future of rot and fungus - information session
Discover Rotterzwam's future plans – sign up for the online information sessions! Rotterzwam is organizing four interactive online information sessions on May 20th & 28th and June 10th &...