Last week we spoke about reheating cooked liquids. The question was asked if there is some quantity that s so small that the Halacha would ignore it and permit its being heated on Shabbat? This question is relevant when hot water is poured into a damp cup. Must the cup be absolutely dry? Alternatively if when serving hot soup on Shabbat must the label be wiped dry before placing it into the pot?
Today we will discuss this question.