I said something about using coffee beans the other day on the other thread, someone said they may explode in the microwave. I use cold packs too so I am thinking they would be fine for that. I think I will do an experiment on the beans in the microwave too lol.
I can get flax seeds at the grocery store in the natural food isle. (krogers around here) As I recall they aren't that high priced . I used to but them all the time then I read you needed the groung ones.