For Spawning, This Is the Best Choice You’ll Ever Make
Measuring 5x4x18" and with a 0.2 micron filter, these spawn bags are able to hold 3-4lbs of your favorite grain. Can also use for fruiting, but the filter is intended for spawn.
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These bags are great for grain and substrate use. I’ve tried all sizes and they all work great.
10T - Mushroom Spawn Bags
There are many companies selling mycology supplies but none as prolific as unicorn bags.
Work great and received quickly