Preparation: Improperly Heated Food-Rabbi Brovender prepares the sources for Rav Fink’s 9th shiur on December 22, 2013. Rav Fink’s Class Description: What happens if food has been improperly heated or cooked on Shabbat? This problem arises in two situations: (1) when a mistake is made in a Torah-observant household; and (2) when food is cooked by non-observant Jews. The rules governing improperly prepared food apply equally to anything done in violation of Shabbat. By analyzing the opinions of the poskim regarding which food may and which food may not be eaten when prepared in violation of Shabbat, we will also understand when it is permitted and when it is prohibited to benefit from any other violation of Shabbat. For example, may we use an object that was transported through the public domain in violation of Shabbat? May we use a taxi or bus which began its route before the end of Shabbat? If I follow a strict view prohibiting something on Shabbat and another Jew follows the lenient view permitting what I prohibit, may I benefit from his or her actions?