So good to hear coffee works as a worm medium! I've been worried about my coffee grounds developing a green mold while I collected them for 2 weeks to dump on my sandy garden beds, and instead started dumping daily in the compost bin I put right outside my kitchen sink window. I started the compost collection during the winter, it has been so convenient I hope to continue to do so this summer...if insects don't become a problem...not to mention da smells..
