I use Wrap & Zap for microwaves but let me tell you what I did.
I sometimes would just grab it for use as a pot holder to hold a handle of a hot pot. Well I don’t remember how it got wet but it was wet with water and I had this bright 💡 idea to place it in my stove oven to dry, since I had it on for something else. Naturally, I was multitasking and forgot it in the oven until I went to check on whatever I was baking. My cozie was as black as darkness and burnt to a hard crip, but it never flamed up or caught on fire. It really didn’t even melt. It stayed the same size just hard as a rock and very black. Good to know it didn’t 🔥 flame.