I thrift old books and I have some I just unburied from my childhood bedroom. They have stains which could be mold or just dirt and/or foxing.
Has anyone ever used a mold test kit to figure out if their books were moldy? I don’t trust myself to guess right and I don’t want to get rid of the books (especially if they’re just foxed or dirty).
u/Fearless-Jump9271 — 9 days ago