When filling your own microwave heating pad, you have many options from which to choose. Corn, rice and dried beans are three of the more common ones that we have field tested right here at Maine Warmers, and we’re happy to share the results of our findings. These popular fillings are about the same in volume and weight and have similar heating properties. Take a look at the PROS and CONS to decide which filling is best for you.
Corn (whole, not the popping kind)
PROS – excellent heat retention, may be microwaved (and frozen) over and over without breaking down, lasts for years without needing to be replaced, does not take on a peculiar odor (some say it has the mild aroma of popcorn)
CONS – not readily available at grocery stores (find at feed or pet supply stores)
PROS – very good heat retention, easy to find at grocery stores in bulk, inexpensive to replace
CONS – breaks down easily after repeated microwaving (and freezing) therefore will take on a peculiar odor, lavender or other fragrances are recommended to mask the odor, needs to be replaced often
PROS – very good heat retention, easy to find at grocery stores in bulk, inexpensive to replace, does not break down like rice
CONS – may take on a peculiar odor after repeated microwaving (or freezing) and need to be replaced