please be very careful what you put in your bowls... especially if you plan to put them in the microwave, or to gift them. I purchased a potato bag from a craftshow, gifted it to my MIL, and it started on fire in her microwave the first time she used it. Not cool! I had been using one for a couple of years, and had chalked up her bad experience to the fact it was a high powered microwave. About a year ago, mine started on fire, as well, in my 20 year old microwave that didn't even have the power to pop popcorn.