MLN 6th - Fungi symbiosis 2022 event September 17 and 18, 2022 - Belgrade - Ekofungi
In the past 2 years, the world has changed in many ways. More and more people have come to see that we need to change. The mushroom community knew this already for several years. Mushrooms can p...
Pita bread with oyster mushroom shawarma
✔ vegetarian ✔ for 2 persons ✔ easy ✔ 20 minutes When you ask the Rotterzwam team what their favorite mushroom dish is, they'll all say in unison: shawarma! This easy dis...
Don't throw away your coffee grounds!
If you've known us for a while, it probably won't surprise you that you can grow oyster mushrooms on coffee grounds. Since 2013, we've been processing local coffee grounds at our Rotterdam farm. O...
rotterzwam is certified B Corp
Going through a certification process can help us make our society more sustainable and professionalize our businesses. We found common ground with our philosophy in ISO and organic certification, ...
Recipe: oyster mushroom burger with tarragon mayonnaise
When we think of a good alternative to a hamburger, we immediately think of the vegetarian version made with oyster mushrooms. They're quick to make and, in our opinion, just as delicious. You sea...
Increased cost of coffee grounds collection? Not at Rotterzwam
The cost of collecting waste [and thus coffee grounds] is rising annually, and by ever-increasing leaps and bounds. This cost increase is also known as inflation, and is largely due to the monetar...
8 Reasons to Distinguish Coffee Grounds From Rot Fungus
Earth Overshoot Day tells us that raw materials are running out, and we're seeing global CO2 emissions rise. It's therefore bizarre that after coffee grounds are collected, the material still re...
rotterzwam supplies mushroom growing units to the Clique
Based on the lessons learned over the past few years at our Rotterdam nursery, we've further developed our mobile mushroom cultivation unit. This has resulted in a climate wall suitable for mushroo...
Recipe: warm salad with oyster mushrooms, green asparagus, chicory and blue cheese
Salads, a summer dish? Not necessarily! In winter, you can easily make a warm salad with seasonal ingredients. This salad is a firm favorite and can be served as a main course with some bread, or a...
Sustainable and circular Christmas package
The Rotterzwam Christmas gift set is a simple yet fun Christmas gift set with a strong focus on Dutch products. It includes many artisanal products such as coffee soap, dried mushrooms, oyster mush...
Residual flows on the soil: the next steps
In recent years, we've collected containers full of waste streams, overcome legal hurdles, measured impact, conducted research, and shared results. The conclusion seems clear: organic waste stream...
Coffee grounds against soil impoverishment
The Dutch drink approximately 40 million cups of coffee a day. This represents only 0.2% of the coffee bean. The rest remains as coffee grounds. Approximately 500,000 kg of coffee grounds and 33 t...
Residual flows on the soil: the impact
Using organic waste streams as soil improvers sounds like a sustainable idea, but what exactly is the impact of this plan? To find out, Ecochain compared several scenarios based on the environmenta...
Recipe: oyster mushroom tempura
Want to surprise your guests with a delicious vegetarian snack? Then this oyster mushroom tempura is a must-try. It's often found in Japanese cuisine in various variations. You don't need a deep fr...
Residual flows on the soil: the research results
This blog series is about our "Back to the Soil" project, in which we investigate whether several organic waste streams can be used as soil improvers in arable farming and how this can be legally m...