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Hatmana: Difference between revisions

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[[Image:Crock_Pot.jpg|right]]
[[Image:Crock_Pot.jpg|right]]
==Insulating before Shabbat==
==Insulating before Shabbat==
# One is not allowed to insulate a food before [[Shabbat]] with material that preserves heat, such as sand, as a gezerah that one will come to insulate the pot with coals and stoke them.<Ref>The Gemara (34a) forbids one to insulate before Shabbat with material that preserves heat. Shulchan Aruch 257:1 and 3 writes that olive peals, sesame, salt, lime, or sand are examples of materials that preserve heat. Shemirat [[Shabbat]] KeHilchata 1:75.</ref>
 
# Conversely, it is permitted to insulate before [[Shabbat]] with material that doesn’t preserve heat like a cloth. <Ref> Shemirat [[Shabbat]] KeHilchata 1:75, implied from Shulchan Aruch 257:1,3. The Gemara ([[Shabbat]] 48a) says that clothing are a material that don’t preserve heat. </ref> However, there is a dispute if a pot that is covered with clothes can be placed on a heating element, which would cause the pot to get hot. See further.
# One is permitted to insulate food before [[Shabbat]], with material that preserves heat. This is permitted even during twilight period. However, before the [[Shabbat]] one is not permitted to insulate food with  material that increases the heat see Talmud [[Shabbat]] 34b lest one insulate with hot ashes containing coals and lest the food be incompletely cooked and one come to rake the coals on the [[Shabbat]] (Rashi at loc). Shulchan Aruch 257:1.
# On the Sabbath itself insulating is forbidden even with material that only preserves the heat, see statement of Rava on Gemara Shabbat (34a) as a prohibition lest one discover the pot to be too cold and heat it up on coals on the [[Shabbat]] and stoke the coals. This does not apply during twilight period as most pots are warm at that time. Shulchan Aruch 257:1.
 
# It is permitted to insulate before [[Shabbat]] with material that preserves heat like a cloth. <Ref> Shemirat [[Shabbat]] KeHilchata 1:75, implied from Shulchan Aruch 257:1,3. There is a dispute if a pot that is covered with clothes can be placed on a heating element, which would cause the pot to get hot. See further.
 
## Everyone agrees that before Shabbat it is permissible to wrap a pot that is off the fire or on top of a hot pot which is off the fire. <ref>Shulchan Aruch 258:1, Mishna Brurah 258:2, Shemirat [[Shabbat]] KeHilchata 1:75 </ref>
## Everyone agrees that before Shabbat it is permissible to wrap a pot that is off the fire or on top of a hot pot which is off the fire. <ref>Shulchan Aruch 258:1, Mishna Brurah 258:2, Shemirat [[Shabbat]] KeHilchata 1:75 </ref>
## According to most poskim, it is forbidden even before Shabbat to wrap a pot with clothes if the pot is on a covered fire or electric hotplate. <Ref>Shulchan Aruch 257:8 explains that even though covering with a cloth is considered something doesn't preserve the heat, since the pot is top of the fire insulating the pot with the cloth becomes like it is insulated with something that preserves the heat, which is forbidden even on Friday. Mishna Brurah 257:37, Kaf Hachaim 257:40, and Shemirat [[Shabbat]] KeHilchata 1:75 agree.</ref> However, if a Sephardic Jew has such a minhag he doesn't need to be stopped.<ref> Chazon Ovadia (Shabbat v. 1 p. 56) writes that some are lenient and there is a minhag to be lenient against Shulchan Aruch.  
## According to most poskim, it is forbidden even before Shabbat to wrap a pot with clothes if the pot is on a covered fire or electric hotplate. <Ref>Shulchan Aruch 257:8 explains that even though covering with a cloth is considered something doesn't preserve the heat, since the pot is top of the fire insulating the pot with the cloth becomes like it is insulated with something that preserves the heat, which is forbidden even on Friday. Mishna Brurah 257:37, Kaf Hachaim 257:40, and Shemirat [[Shabbat]] KeHilchata 1:75 agree.</ref> However, if a Sephardic Jew has such a minhag he doesn't need to be stopped.<ref> Chazon Ovadia (Shabbat v. 1 p. 56) writes that some are lenient and there is a minhag to be lenient against Shulchan Aruch.