Fold material in half and sew up the sides. Sew a couple of seams down the middle to make a couple of chambers. This is important, otherwise the rice all goes to one corner and is not evenly spaced out..like on down comforters. That doesn’t feel so good when you want to lay on it.
After filling with rice, carefully sew the open end shut.
Simply throw into microwave for 1 -2 minutes and you have a nice hot aromatic Heating Pad that lasts about 45 minutes. You can also use these as ice packs. Just toss into freezer and it’s ready to go anytime you need it. (not good as an ice pack for food only for boo boos) These make awesome gifts!