Can the potatoes be heated by foil, please?
Aluminum foil has a microwave isolation effect, that is, the microwave can not penetrate the aluminum foil, so the food will not be heated by microwave energy.
Of course, things wrapped in aluminum foil can not be heated in microwave ovens.
The potatoes can be wrapped in foil and heated in an oven or other heat source, and the water does not evaporate. It works very well.
