
Microwaved cup in mug and there is this brown stuff and the mug is cracked but cup is fine wtf is this?
I put my cup in this microwave safe mug and put it in the microwave for about 2 min. I opened to check on it and there was this brown stuff everywhere on the mug and a pretty gross smell. The mug is now very cracked but the cup looks completely normal but smells a bit funky. I had been soaking the cup in hydrogen peroxide for 24 hours before I microwaved it. I usually boil my cup but I'm in college and have a collapsible cup steamer coming in the mail that I couldn't wait for. My period starts tomorrow and I don't know if I can still use the cup please someone explain what this is it's so scary