Artisan Mushrooms 17/09/2026 Artisan Mushrooms 17/09/2026

How to Use a Pressure Cooker for Mushroom Cultivation

All-in-one method: Inject liquid culture into the grain layer at the bottom of the ${growBag}. Allow the grain to colonise, then break and mix it through the hardwood substrate inside the sealed bag.
Separate method: Inject liquid culture into the ${grain}. Once fully colonised, mix that grain spawn with the ${bulk}.

A practical guide to using a pressure cooker for mushroom cultivation, covering 15 PSI, sterilisation times for grain, substrate, agar and liquid culture, safe loading, cooling and common problems.