Buy button mushroom spawn from a reliable supplier
Prepare a growing container, tray, bag, or mushroom kit
Use pasteurized compost or mushroom-growing substrate
Fill the container with the prepared substrate
Mix or layer the spawn into the substrate
Keep the growing area dark and warm for colonization
Maintain high humidity without soaking the substrate
Cover the substrate with a thin casing layer after colonization
Mist lightly to keep the casing layer moist
Lower the temperature slightly for fruiting
Provide fresh air exchange regularly
Keep indirect light available during fruiting
Harvest mushrooms when caps are closed or just starting to open
Twist or cut mushrooms gently at the base
Remove leftover stems and debris after harvesting
Continue misting and maintaining humidity for additional flushes
Clean and disinfect tools and containers after use