Is it permissible to heat non-food items on Shabbath? Assume the method of heating is to use an existing heat source (a blech, or the top of a crockpot or hot water urn).
Would it matter if it is for heat therapy or for general warmth?
Cooking is forbidden for non-food items as well. See Mishna Berura 318:1.
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3 years ago
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