Most paper is fine to put in the worm bin. Shredded/ripped up printer paper, newspaper, junk mail, envelopes (no plastic windows), cardboard, paper egg cartons, and tissues/paper towels are fine, as long as they don’t contain plastic or chemicals. Make sure to remove paper clips and staples before adding paper to your worm bin. You want to avoid paper or cardboard that is coated in plastic, wax, metallic covering or foil. Most printers use soy-based inks for color, so colored paper is generally ok for your worms.
Posted in: How it Works / Feeding / Worms