Cat Food

I have a few friends that save their food cans for me. I'm fortunate in that my yard takes them as long as they are rinsed. Well, I picked up a bag today and was told that they mixed the soda cans in with their tin cans. Well, as I was sorting, the cat food cans felt different. I grabbed a magnet and guess what...it didn't stick. A quick test with the grinder and no spark. Double check your food cans, especially the Friskies cat food cans, they may just be aluminum. By the time I was finished sorting, I have a whole kitchen trash bag full of aluminum cat food cans!