Rice has a moisture content that comes out when microwaved. Lots of people dampen the rice bag before heating so you get a moist heat which is soothing for chest colds and sore muscles.
By
11/11/2011
Rice is made to cook in water, so the heat makes a little "oven" in their. Barley is way better. This is just some of what google gives you. I hope this helps. PBP