Best overall options: Whole corn, walnut shells, jasmine rice. I still love cherry pits for larger packs, but their heat doesn’t last in a small pack.Click to see full answer. Then, what kind of rice do you use for heat packs?Grab 3 pounds of jasmine rice, a single piece of fabric, some needles and thread. I love jasmine rice because when you heat it up, the scent?Additionally, how long do rice heat packs last? i’ve made 3 in the last two weeks or so. my experiences go like this: make sock/rice heating pad (both brown and white rice have been tried), for the first few microwave trips (a minute to two minutes, and then every 20 minutes or so, another minute, for stretches of about an hour or two). In this regard, what kind of rice is best for rice bags? Best Answer Regular long or short grain rice sells in bulk here for about 26 cents per pound. 2 Kitchen towels sewn together is my rice bag and I often scent it with essential oils. Lavendar is the most soothing and is also okay to use in contact with skin. Some are not, so be careful.How do you make a heating pad with Rice? Homemade Heating Pad Step 1: Materials. 1 Pair of Socks (make sure there are no synthetic materials in socks!) 1 1/2 cups of Rice. Step 2: Making the Heating Pad. Pour rice into one of the socks. Tie a knot at the top of the sock. Step 3: Using the Heating Pad. Put the heating pad in the microwave for 1-2 minutes.