Garfield Bullock 25/07/2026 Garfield Bullock 25/07/2026

Mushroom Fruiting Chambers: Monotubs, Martha Tents & More

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}.

Not sure whether to use a modified monotub, unmodified tub, shoebox, shotgun fruiting chamber or automated Martha tent? This guide compares the main mushroom fruiting setups and explains how to build an automated chamber with humidity, ventilation and lighting control.