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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...
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 &...
Over the past few years, we've been able to share our knowledge with many entrepreneurs (for a fee). This has also led to the creation of several businesses. However, quite a few have already close...
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...
Finally, system change regarding waste legislation
Monday, June 21, 2021, was the day. Through BlueCity, the municipality of Rotterdam, in collaboration with DCMR Environmental Protection Agency Rijnmond, opened a Circular Counter where entrepreneu...
Rotterzwam has been making a significant environmental impact since 2013. Since 2017, we've been working to quantify and map this impact. In 2020, our primary business activities generated 9,409 ki...
Rising waste costs? Not at Rotterzwam!
We've also never changed the price of our coffee grounds. We've been charging the same prices for our service since 2014.
More energy produced than it consumes!
Born in BlueCity010 and expanded to De Kroon in 2019. 2020 was our nursery's first full year of operation. This finally gave us a complete overview of last year's consumption and production. Gue...
Organic waste flows on the soil: what are the legal implications?
This blog series is about our "Back to the Soil" project, in which we investigate whether various organic waste streams can be used as soil improvers in arable farming and how this can be legally a...
Waste legislation: what is waste?
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...
The impact of corona on our impact
Rotterzwam grows oyster mushrooms on coffee grounds . But what if the entire country suddenly works from home due to a pandemic? That has a significant impact on our impact.
From plan to experiment: the legal waste stream soap
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 a...
Organic waste flows on the soil: why?
Most people don't think about soil on a daily basis. Understandably. It's a brown mess, it gets your hands dirty, and it's not very exciting to look at. Yet, soil is so much more than that, and ...
update 1: pot tests, collecting residual flows and spreading
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 i...
One plus one equals two: on the one hand, organic streams are available and incinerated with residual waste, and on the other, there's a shortage of these same organic streams. Reason enough to ex...