Oyster and Shiitake and other types of mushrooms are gaining in popularity as a gourmet food item. Because of the booming demand for mushrooms, there is a good opportunity to cash in on these fungi. And you don’t need acres of land to grow them. Growing mushrooms in coffee grounds are possible, and it will not cost you anything.
Mushrooms grow rapidly in cool, dark, and humid environments. They produce spores which are used to make spawns on carbon-rich materials. They include straw, sawdust, straw, manure or decaying log. Mushrooms grow best in carbon-rich medium.
We can’t grow mushrooms in ordinary garden soil. However, growing mushrooms in coffee grounds are possible. And why not? Used coffee grounds are organic materials that are cohesive, sterilized and rich in carbon. In fact, coffee grounds are composed of a 20:1 carbon-to-nitrogen ratio. These characteristics make growing mushrooms in coffee grounds possible.