Oh, my goodness! I am glad you were in the kitchen when this happened. I often pop things in the mw and then go to another room to do something. I am kind of like some other posters...I could not quite figure the need for them to begin with? I have always pricked my baking potatoes and when they finish baking in the mw, I pull them out and wrap them in a tea-towel to let them 'sit' for a few minutes. Personally, I think that would be a good use for these baking potato bags...not actually baking with them in the mw.