As a member of the nightshade family, potatoes are relatively high in solanine. Solanine is a toxin that acts as a pesticide.
So, it should come as no surprise that compost worms avoid the potato peels they’re served. However, like all organic matter, potatoes will eventually break down and become transformed.
Still, it is worth noting that the properties of the chemical solanine in potatoes may also inhibit the effectiveness of the microbes the worms rely on in the bin.
As far as best practices go, potatoes are better thrown into the hot compost pile rather than into the worm bin.
Hungry for more? Subscribe today for The Squirm Firm Newsletter. Once each month we’ll deliver a little something to turn up your worm composting skill set. It’s free! It’s easy! And here at The Squirm Firm, we’re just chomping at the bit to share it with you! Sign up now!