Since 50% of the nation’s mushroom crop is grown in Chester County and mushroom output accounts for 8% of Pennsylvania’s total agricultural receipts, knowing more about the business of growing of the fleshy, spore-bearing fruiting body of a fungus not only makes sense but is kind of interesting as well.

This video shot at Phillips Mushroom Farms in Kennett Square and uploaded by the History Channel provides a rare behind-the-scenes look into the business of mushrooms.