Originally Posted by
Kris P
I just want to caution to be sure to use the correct batting in potato bags, and make sure you don't leave any bits of pins or metal in them. I have a bag that I have used and loved for several years. I purchased a few to give as gifts, and the one I gave my MIL burst into flames in her microwave the first time she used it. I was a little embarrassed--- to say the least.
I think the batting with the metal in it is what does this. It's called "Insul-Bright" from the Warm Company. This stuff works well for a lot of things: to keep in the heat after it has been heated, or protect surfaces from heat. Put your potato in it after it is baked and it will stay warm longer.