GRAIN SPAWN HACK, 13 lbs. in a Single Run with a Presto PC, No Stacking, Pickle Party!

Most new mushroom cultivators start out with a fairly inexpensive pressure cooker for sterilizing their grain. One of the most popular PCs for beginners is the Presto 23 quart. While these PCs work great, it's very difficult to do large volumes of grain spawn because standard grow bags often don't fare well because hot spots cause bag failure. In this video, I explain how to modify large pickle jars to maximize your grain spawn production in the Presto 23 quart without having to worry about bag failure. A full filter membrane lid of Tyvek ensures that these large jars receive enough air exchange to fully colonize. Support my work on Patreon and receive exclusive perks including one-on-one help with your mushroom grows via my Discord server: https://www.patreon.com/RenegadeMushrooms671