Originally Posted by nannya54

Honestly, I haven't read everyone's responses so perhaps this has already been mentioned and questioned and if so, my apologies........

Did you happen to put any moist food in the bag to cook or did you just put the dry cotton and dry batting and dry thread in the microwave? It's the moisture on and in the food being cooked that helps the bag from NOT burning. Just a thought since I didn't see in you statement that there was anything.