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Kashering the Kitchen for Pesach: Difference between revisions
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# If one will put down hot food on the counter-tops on [[Pesach]] one should either Kasher the counters or cover them, however, if one isn't going to use the counter-tops for hot foods on [[Pesach]] then one should just clean the surface. <ref> Rav Hershel Schachter on [http://www.ou.org/community_services/video/67558 OU Pre-Pesach Webcast 5769] between minutes 11:45 and 12:30 </ref> | # If one will put down hot food on the counter-tops on [[Pesach]] one should either Kasher the counters or cover them, however, if one isn't going to use the counter-tops for hot foods on [[Pesach]] then one should just clean the surface. <ref> Rav Hershel Schachter on [http://www.ou.org/community_services/video/67558 OU Pre-Pesach Webcast 5769] between minutes 11:45 and 12:30 </ref> | ||
# If a vessel was used even once for Chametz it needs to be cleansed to be used for Pesach. A bread knife which was once for cutting a Chametz food that was hot such as warm cake, warm breaded-chicken, or used to stir chulent. A teapot needs be cleansed because it probably touched Chametz when it was warm. <Ref> Yalkut Yosef (Isser VeHeter vol 3 pg 470) </ref> | # If a vessel was used even once for Chametz it needs to be cleansed to be used for [[Pesach]]. A bread knife which was once for cutting a Chametz food that was hot such as warm cake, warm breaded-chicken, or used to stir chulent. A teapot needs be cleansed because it probably touched Chametz when it was warm. <Ref> Yalkut Yosef (Isser VeHeter vol 3 pg 470) </ref> | ||
==Hagalah== | ==Hagalah== | ||
# If a vessel is used a majority of the time for cooking in liquid it is cleansed through boiling water. <Ref>Chazon Ovadyah (pg 124) </ref> | # If a vessel is used a majority of the time for cooking in liquid it is cleansed through boiling water. <Ref>Chazon Ovadyah (pg 124) </ref> | ||
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==Microwaves== | ==Microwaves== | ||
# Microwave which heat up food like an oven are cleansed like an oven by having it cleaned from all Chametz, left unused for 24 hours, and then heated to it’s highest temperature for an hour. <ref>Yalkut Yosef (Kitzur S”A 451:10) </ref> | # Microwave which heat up food like an oven are cleansed like an oven by having it cleaned from all Chametz, left unused for 24 hours, and then heated to it’s highest temperature for an hour. <ref>Yalkut Yosef (Kitzur S”A 451:10) </ref> | ||
# Microwaves which are used to heat up food by radiation then if the microwave walls are made out of metal, many hold that one can kasher the microwave by cleaning it thoroughly and boiling a cup of water in the microwave until it steams. If the walls are made out of plastic, many say that one can follow the above procedure and then cover the food put in the microwave on Pesach. <Ref> The Mishna (Avoda Zara 75b) writes that utensils, which absorbed the taste of forbidden food through fire, can be purified through Libun. Tosfot (Chullin 8a s.v. SheLivna) explains that since when chametz is absorbed into the utensils before Pesach the chametz taste was permitted, utensils that usually required Libun, can be kashered with Hagalah. The Ran (Pesachim 8b s.v. Devarim) explains that the Rif considers chametz taste to be a forbidden taste since it has a status of chametz even before Pesach. Although S”A and Rama 451:4 rule stringently, the Mishna Brurah 451:32 notes that in some cases we rely on the lenient opinions. | # Microwaves which are used to heat up food by radiation then if the microwave walls are made out of metal, many hold that one can kasher the microwave by cleaning it thoroughly and boiling a cup of water in the microwave until it steams. If the walls are made out of plastic, many say that one can follow the above procedure and then cover the food put in the microwave on [[Pesach]]. <Ref> The Mishna (Avoda Zara 75b) writes that utensils, which absorbed the taste of forbidden food through fire, can be purified through Libun. Tosfot (Chullin 8a s.v. SheLivna) explains that since when chametz is absorbed into the utensils before Pesach the chametz taste was permitted, utensils that usually required Libun, can be kashered with Hagalah. The Ran (Pesachim 8b s.v. Devarim) explains that the Rif considers chametz taste to be a forbidden taste since it has a status of chametz even before [[Pesach]]. Although S”A and Rama 451:4 rule stringently, the Mishna Brurah 451:32 notes that in some cases we rely on the lenient opinions. | ||
* Yalkut Yosef (Moadim p. 600-8, Pesach p. 38) writes that if a microwave is used mostly to reheat and the walls of the microwave don’t reach a temperature of Yad Soledet Bo, one could kasher it by heating up a cup of water with some soap in the microwave for a few minutes. | * Yalkut Yosef (Moadim p. 600-8, Pesach p. 38) writes that if a microwave is used mostly to reheat and the walls of the microwave don’t reach a temperature of Yad Soledet Bo, one could kasher it by heating up a cup of water with some soap in the microwave for a few minutes. | ||
* He explains that since most of the time the microwave doesn’t reach Yad Soledet Bo it may not require kashering. Even if it does reach Yad Soledet Bo, heating up water in the microwave until it steams up the microwave is considered Hagalah. He reasons that steam suffices since the taste was only absorbed through steam. He adds several other reasons to be lenient with absorptions through steam such as perhaps the walls don’t absorb through steam, perhaps steam applies only to liquid foods, and perhaps steam absorptions are only d’rabanan altogether. He adds that it is still preferable to cover foods on Pesach in the microwave. Lastly, if the microwave is mostly used to cook or is a commercial microwave that is used very frequently and the walls usually reach Yad Soledet Bo, it shouldn’t be used on Pesach. | * He explains that since most of the time the microwave doesn’t reach Yad Soledet Bo it may not require kashering. Even if it does reach Yad Soledet Bo, heating up water in the microwave until it steams up the microwave is considered Hagalah. He reasons that steam suffices since the taste was only absorbed through steam. He adds several other reasons to be lenient with absorptions through steam such as perhaps the walls don’t absorb through steam, perhaps steam applies only to liquid foods, and perhaps steam absorptions are only d’rabanan altogether. He adds that it is still preferable to cover foods on Pesach in the microwave. Lastly, if the microwave is mostly used to cook or is a commercial microwave that is used very frequently and the walls usually reach Yad Soledet Bo, it shouldn’t be used on [[Pesach]]. | ||
* Rav Moshe Feinstein (ibid. p. 182) agreed that a microwave can be kashered with steam just as it absorbed through steam. Rav Mordechai Willig (ibid. min 66-8) agrees if the walls are metal the microwave can be kashered with steam, but if the walls are plastic it shouldn’t be kashered. Rav Hershel Schachter (“Kashering the Kitchen for Pesach” min 10-13) said that if the walls are plastic one could kasher it with steam as long as one covers one’s food on Pesach because it is improbable that forbidden taste is transferred in the air. Similarly, Rav Shimon Eider (ibid.) writes if the walls are plastic one may cover the interior completely and cook in it when the food is covered. </ref> | * Rav Moshe Feinstein (ibid. p. 182) agreed that a microwave can be kashered with steam just as it absorbed through steam. Rav Mordechai Willig (ibid. min 66-8) agrees if the walls are metal the microwave can be kashered with steam, but if the walls are plastic it shouldn’t be kashered. Rav Hershel Schachter (“Kashering the Kitchen for Pesach” min 10-13) said that if the walls are plastic one could kasher it with steam as long as one covers one’s food on Pesach because it is improbable that forbidden taste is transferred in the air. Similarly, Rav Shimon Eider (ibid.) writes if the walls are plastic one may cover the interior completely and cook in it when the food is covered. </ref> | ||
