developed a technology for using corn stems in the production of tailor-made materials for specific industrial applications


Deckerde Icon

CORMO mushroom casing

for sustainable mushroom production

Icon Deckerde

CORMO blocking soil

for production of vegetable seedlings in nurseries.

Cormo Schaumstoff Icon

CORMO ammonia filter

for air purification in animal rearing houses.

News: Market introduction of the first sustainable mushroom casing material. CORMO mushroom casing – beyond peat!

The European mushroom and vegetable production requires around 3.5 Mio m³ black peat per year, which results in approximately 1 million t of CO2-emissions. Cormo developed TEFA, the first sustainable substitute for black peat, which enables reduction of the black peat associated CO2-emissions by 90%.

Today, mushroom production relies on the use of black peat based mushroom casing.
99% of all head lettuce consumed in Europe was propagated in greenhouses, on black peat.
Wetlands store twice as much CO2 than all global forests together but are destroyed by peat extraction.
Corn stems are an unused, sustainable residue from grain maize production.
CORMO mushroom casing is introduced on the market after 3 years of development and validation. Intensive practical tests are currently being carried out with the leading Swiss producer Wauwiler Champignon.

On the trail of the “holy grail” with CORMO

Mushroom Business reports in the September 2021 issue on the enormous potential of our CORMO casing. Under the title “Searching for the holy grail”, the current challenges of the mushroom industry are highlighted, which is currently intensively searching for functioning alternatives to the black peat casing used to date. This is because the extraction of peat on an industrial scale is not likely to be sustainable for too much longer, both for political and climate-relevant reasons. The dilemma: all alternatives tested so far have been accompanied by excessive losses in yield and quality. Things look different when using CORMO casing. Mushroom farms that already use CORMO casing report on their positive experiences: Read the entire article at:

CORMO casing: Future solution for the mushroom industry

In an extensive project, the Association of German Mushroom Growers “BDC” is testing the potential of our CORMO casing as a sustainable alternative to black peat casing soil. So far, there is no comparable project on this scale.

Over a period of two to three years, the four largest German mushroom producers Weiße Köpfe, Dohme Pilze, Wiesenhof Pilzland Produktion and Rheinische Pilzzentrale RPZ will use CORMO casing for their mushroom cultivation. The yield and quality equivalence to the black peat is being specifically investigated. The practical validation process will be scientifically accompanied. The scope of the project is essential for the entire mushroom industry, for which black peat is an important raw material. The results of the validation are therefore trend-setting for the entire industry. Their hopes are now based on our CORMO casing. Previous evaluations and practical experience make us optimistic. The positive properties of CORMO casing for mushroom cultivation have already been proven in scientific studies. And customers who use CORMO also report only positive results. The current project will now show whether CORMO casing will also function reliably on a large scale as a substitute for black peat or as an admixture. We are confident and eagerly await the results.

CORMO mushroom casing in comparison


The technological production process ensures a consistently high quality of our product – the quality of raw peat is subject to significant natural variability.


During 3 years of repeated full-cycle validation with renowned industry institutions, CORMO generated a mushroom yield up to 10% higher than standard black peat based casing, while maintaining excellent product quality.


The raw material used for production of CORMO mushroom casing, maize stems, is renewable and sustainable, whereas black peat is a fossil, non-sustainable resource.


CORMO mushroom casing can be produced in the regional consumer markets, whereas black peat is mostly extracted in Baltic countries and needs to be transported to the global consumers.


If produced in the consumer region, CORMO mushroom casing is competitive against black peat based alternatives, thanks to lower transport cost.

Market introduction of additional products

CORMO blocking soil

for production of vegetable seedlings in nurseries.

BABS Granulat

CORMO ammonia filter

for air purification in animal rearing houses.

Our Partners

Logo Solarimpulse
Logo Equity Pitcher
Logo Mushcomb
Logo Agrolohn
Logo Mushcomb


Write to us! We look forward to your message.

Cormo AG

Falkenstrasse 17, 2502 Biel, Switzerland

+41 79 285 99 25