Enokitake mushrooms grown in a glass jar. A cardboard collar place on top of the jar raised the CO2 levels and resulted in the long stems. With this jar method, there is typically only a single crop, and then the jar must be emptied of substrate and cleaned. I found it to be a chore, but many large-scale growers have automated this process and grow these mushrooms exclusively in jars.
Enokitake mushrooms grown in a glass jar. A cardboard collar place on top of the jar raised the CO2 levels and resulted in the long stems. With this jar method, there is typically only a single crop, and then the jar must be emptied of substrate and cleaned. I found it to be a chore, but many large-scale growers have automated this process and grow these mushrooms exclusively in jars.