About me

Marisa Peña Díaz

"I came to mushroom growing industryby chance and the world of cultivated mushrooms became my passion and my profession. "

Since then I have researched and innovated in the different techniques of mushroom spawn elaboration and the obtaining of new varieties, the introduction of new technologies and the improvement of the composting and cultivation processes of the different species of edible and medicinal mushrooms. And I have led national and international research projects.

During 30 years I have put all my experience, my capacity of learning, innovation and spirit of overcoming, to the service of this sector.

I have advised and worked in different composting plants, spawn laboratories and cultivation facilities all over the world solving different problems.

Thanks to my extensive knowledge, great practical experience and my global and integrative vision of the world of applied mycology, I can answer your questions, guide you and avoid errors in your new projects and offer advice to companies already implemented to improve their productivity.

I am official distributor of UnicornBags sterilizable filter bags. They are used for spawn production, mushroom cultivation and biocontrol (the growth of biological control agents).


Spawn Elaboration

We help to design and start up new spawn laboratory installations with different degrees of technification: from simple installations to the latest biotechnological developments. We provide technical support and technology transfer to improve the quality of inoculum and commercialspawnproduction.We...

more info

Filtered Bags

Gusseted Bags

Autoclavable bags with side bellows that allow them to remain standing in the filling.They are generally used for the production of mycelium and for the production of Shiitake substrates and other species of fungi that require steam sterilized substrates.This type of bags are manufactured in...

see more


Marisa Peña interview in Fresh Plaza

I am convinced that the 21st century is going to be the century of the development of fungi as biofactoriesAlthough they are usually available in the vegetable section of stores and supermarkets, we should recall that fungi belong to a biological kingdom separate from plants, one of the five different kingdoms in which living organisms can be classified based on their evolutionary kinship. The...

learn more

Mycological Dictionary


Microorganisms have minima growth above 0ºC, maxima below 50ºC, and optima between 5 and 40ºC.

learn more