(This isn’t ICT related, but I found it interesting anyway)
These products are typically fabric bags filled with wheat or another grain which are intended to be heated in a microwave. However, the bag can catch fire in the microwave if it is heated for too long. This is a particular concern with wheat packs that don’t have clear heating instructions.The ACCC is also aware of cases where wheat bags have caught fire after being put under bedding.
paulspiece.com 