Spawn: The unsung hero of the mycological world! This oat substrate colonized with mycelium is the feisty precursor to beautiful mushrooms. The mycelium has woven itself into a dense, weblike structure throughout the grain and created ready-to-use mushroom spawn. So why purchase grain spawn? Well, it gives you the freedom to grow mushrooms in your own way. Straight from a fruiting block, in a bucket, a  log, or even an old peanut butter jar! It’s a choose your own adventure - mushroom edition. Though, don't get too carried away. Make sure you do your research. Mycology is a tricky business. A sterile environment is always recommended. Once inoculated, your spawn will produce several bountiful, vibrant flushes and you can literally eat the fruits of your labour.

Chestnut spawn will arrive fully colonized. All you need to do is cut open the spawn bag and inoculate the contents into a substrate. Chestnut is a hardwood-loving species, found in nature growing from decaying logs. So make sure you inoculate into a hardwood substrate. We recommend inoculating this spawn into a fruiting block or a bucket. 

Chestnut mushrooms are nutty, full of umami, and have delicate caps and earthy, crunchy stems. Chestnut mushrooms have higher copper, protein, and potassium levels than the medically prized Shiitake mushroom. They have been used in traditional Chinese Medicine to cure headaches, fevers, and fatigue.  

• 4lbs of fully colonized whole oats Pholiota adiposa grain spawn.
• Reseal with sealers after use.
• Sterile procedure recommended. 
• Read our spawn FAQ here. 
• Inoculate into hardwood substrate recommended. Best used with Forij Woodworks Fruiting Block.
• *Contains live mushroom culture
• For best results use ASAP but can be refrigerated for 3-4 months.