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Permissible ways to heat up food on Shabbat: Difference between revisions

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# One may place cold fully cooked solid food on top of a pot that is on the fire on [[Shabbat]] because that is not considered on top of a fire at all. <Ref>
# One may place cold fully cooked solid food on top of a pot that is on the fire on [[Shabbat]] because that is not considered on top of a fire at all. <Ref>
* The Tosefta ([[Shabbat]] 3:23) permits placing a pot of food on top of another pot (Kedeirah Al Gabei Kedeirah) on [[Shabbat]] in order to preserve the heat of the top pot but not in order to heat it up. The Bet Yosef 258 quotes Rabbeinu Yerucham, who cites the Rosh’s opinion that the requirement that the food be hot is true only regarding foods that weren’t fully cooked or liquids, but a cold fully cooked solid may be placed on top of a pot on [[Shabbat]]. Rabbeinu Yerucham then quotes a second opinion that placing cold food on top of a pot is like placing it on a fire which is forbidden. S”A 318:8 rules like the Rosh. Many achronim including Gra 318:7, Eliyah Rabba 318:21, Mishna Brurah 318:60, Shemirat [[Shabbat]] KeHilchata 1:36, and Yalkut Yosef ([[Shabbat]] vol 3 pg 207) agree.
* The Tosefta ([[Shabbat]] 3:23) permits placing a pot of food on top of another pot (Kedeirah Al Gabei Kedeirah) on [[Shabbat]] in order to preserve the heat of the top pot but not in order to heat it up. The Bet Yosef 258 quotes Rabbeinu Yerucham, who cites the Rosh’s opinion that the requirement that the food be hot is true only regarding foods that weren’t fully cooked or liquids, but a cold fully cooked solid may be placed on top of a pot on [[Shabbat]]. Rabbeinu Yerucham then quotes a second opinion that placing cold food on top of a pot is like placing it on a fire which is forbidden. S”A 318:8 rules like the Rosh. Many achronim including Gra 318:7, Eliyah Rabba 318:21, Mishna Brurah 318:60, Shemirat [[Shabbat]] KeHilchata 1:36, and Yalkut Yosef ([[Shabbat]] vol 3 pg 207) agree.
* Additionally, Rabbenu Yerucham quotes a dispute whether this leniency applies even if the bottom pot is on the fire, or only if it isn’t on the fire. S”A 318:7 quotes these two opinions without ruling. Magen Avraham 318:24 and Mishna Brurah 318:55 rule like the first opinion. Thus, Shemirat [[Shabbat]] KeHilchata 1:42 rules that one may place cold fully cooked solid food on top of another pot of food that is on the fire, even if it will become Yad Soldet Bo. [[Shabbos]] Kitchen (p. 41-2) and Orchot [[Shabbat]] (p. 99) agree.</ref> According to Sephardim, a fully cooked liquid, which is also at least Yad Soledet Bo is the equivalent of a fully cooked solid food, according to Ashkenazim, a fully cooked liquid which is at least slightly warm, is the equivalent of fully cooked solid food. <ref>Even though Shulchan Aruch 318:7 writes that liquids must be as hot as Yad Soldet Bo, Rama 318:15 argues that even if it’s just slightly warm it’s permissible. Shemirat [[Shabbat]] KeHilchata 1:36 agrees. </ref>
* Additionally, Rabbenu Yerucham quotes a dispute whether this leniency applies even if the bottom pot is on the fire, or only if it isn’t on the fire. S”A 318:7 quotes these two opinions without ruling. Magen Avraham 318:24 and Mishna Brurah 318:55 rule like the first opinion. Thus, Shemirat [[Shabbat]] KeHilchata 1:42 rules that one may place cold fully cooked solid food on top of another pot of food that is on the fire, even if it will become Yad Soldet Bo. [[Shabbos]] Kitchen (p. 41-2) and Orchot [[Shabbat]] (p. 99) agree.
* Why does a pot on a pot permit hachzara? Pri Megadim 253:33 writes that the reason that a pot on a pot works is because it isn't a normal way to cook. Am Mordechai Shabbat p. 27 writes that even the Rama and those who hold that hachzara is based on shema yichateh since there is a great reminder not to stoke the coals when one is putting it on top of another pot.
</ref> According to Sephardim, a fully cooked liquid, which is also at least Yad Soledet Bo is the equivalent of a fully cooked solid food, according to Ashkenazim, a fully cooked liquid which is at least slightly warm, is the equivalent of fully cooked solid food. <ref>Even though Shulchan Aruch 318:7 writes that liquids must be as hot as Yad Soldet Bo, Rama 318:15 argues that even if it’s just slightly warm it’s permissible. Shemirat [[Shabbat]] KeHilchata 1:36 agrees. </ref>
# Note that this leniency only applies if the bottom pot is filled with food and not if it is empty. <ref>  
# Note that this leniency only applies if the bottom pot is filled with food and not if it is empty. <ref>  
* Shulchan Aruch 318:8 rules that one may place fully cooked cold food on top of another pot on the fire. On the other hand, the S”A 253:3 rules that one may return food on top of an old pot only if the food is still hot and wasn’t placed on the ground, implying that placing food on top of another pot isn’t permitted without the conditions of [[Hachzara]]. The Pri Megadim E”A 253:33 answers that the leniency spoken about in 318:8 only applies if the bottom pot is filled with food, and not if it is empty. Bei’ur Halacha 253:3 s.v. Veyezaher, Chazon Ish 37, Sh”t Az Nidbaru 3:14, and [[Shabbos]] Kitchen (Rabbi Simcha Bunim Kohen; pg 42) agree that the bottom pot must be filled with food. See, however, Sh”t Shevet HaLevi 1:91.  
* Shulchan Aruch 318:8 rules that one may place fully cooked cold food on top of another pot on the fire. On the other hand, the S”A 253:3 rules that one may return food on top of an old pot only if the food is still hot and wasn’t placed on the ground, implying that placing food on top of another pot isn’t permitted without the conditions of [[Hachzara]]. The Pri Megadim E”A 253:33 answers that the leniency spoken about in 318:8 only applies if the bottom pot is filled with food, and not if it is empty. Bei’ur Halacha 253:3 s.v. Veyezaher, Chazon Ish 37, Sh”t Az Nidbaru 3:14, and [[Shabbos]] Kitchen (Rabbi Simcha Bunim Kohen; pg 42) agree that the bottom pot must be filled with food. See, however, Sh”t Shevet HaLevi 1:91.