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puzzlefan

Making Microwave heating pad

20 years ago

I have owned several of the Thermophore type heating pads for at least eight years The outer covers are now getting ragged. I made a new cover from flannel and then cut open one of the pads. No problem in making a new one but I am curious as to the material in the heating pads. It looks something like rice but it isn't. Any ideas of what it might be ? (small, white kernels).

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