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Making Grain Jars

Growing mushrooms in grain is how I prefer to work. Here is a specific how I currently make them.

Overview

Growing mushrooms starts with creating some kind of safe growth environment for spores/live cultures/inoculated grains. This details how to prepare a jar of grain that can take any of those.

End Goal

Something that looks approximately like this:

This is what a jar looks like shortly after it is safe to take out of the pressure cooker. The aluminum foil on the top protects the lid, which has holes with some kind of filter. If you don’t do this, the filters will allow some moisture to get through.

The condensation on the inside could indicate the grains were too wet. For this jar, that is not the case. But as this cools, it will disappear.

Equipment

Ingredients

Steps and Amounts

Published 13 November 2022

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