A reader recently reached out to us with this question, “What is the best way to prepare eri silk frass to become a soil fertilizer for food crops?” Let’s dive in by breaking down this question!

Worm tea sounds like a disgusting beverage, and indeed it would be if it were a beverage. Fortunately, however, worm tea is actually used primarily as a fertilizer, not to satisfy the thirst of people with eccentric tastes. For that, see our article on why people buy worms.