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Bishul: Difference between revisions
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* Rashba Shabbos 39a s.v. "kol sheba bichamin milifnei hashabbos shorin oso” maintains that once a food has been cooked to the level of ''ma’achal ben derusai'' it cannot be cooked any further. However, Rambam Shabbos 9:3 argues that bishul no longer applies only when the food is completely cooked and further cooking will only worsen the quality of the food (''mitztamek vera lo''). Shulchan Aruch O”C 318:4 holds like the Rambam, but the Biur Halacha S.v “afilu biodo roseach” writes that if the maachal ben drusai food was returned to a covered fire then b’dieved one can rely on the Rashba and eat it. | * Rashba Shabbos 39a s.v. "kol sheba bichamin milifnei hashabbos shorin oso” maintains that once a food has been cooked to the level of ''ma’achal ben derusai'' it cannot be cooked any further. However, Rambam Shabbos 9:3 argues that bishul no longer applies only when the food is completely cooked and further cooking will only worsen the quality of the food (''mitztamek vera lo''). Shulchan Aruch O”C 318:4 holds like the Rambam, but the Biur Halacha S.v “afilu biodo roseach” writes that if the maachal ben drusai food was returned to a covered fire then b’dieved one can rely on the Rashba and eat it. | ||
* There is a further debate among the Rishonim regarding what exactly this degree of “cooked” is. Rashi (Shabbos 20a s.v. ben drusai) writes that it is a third cooked, while Rambam (Shabbos 9:5) holds that it is half cooked. Shulchan Aruch (254:2) paskens like Rambam, but Mishnah Brurah (253:38 and 43) writes that b’dieved we can rely on Rashi.</ref> | * There is a further debate among the Rishonim regarding what exactly this degree of “cooked” is. Rashi (Shabbos 20a s.v. ben drusai) writes that it is a third cooked, while Rambam (Shabbos 9:5) holds that it is half cooked. Shulchan Aruch (254:2) paskens like Rambam, but Mishnah Brurah (253:38 and 43) writes that b’dieved we can rely on Rashi.</ref> | ||
# Even though for food that was fully cooked there is no violation of bishul when recooking it (even though there can be an issue of [[Hachzara]]), for liquids there is a violation of bishul when recooking it.<ref>The Rambam Shabbat 9:3, Rashba Shabbat 40b s.v. meyvee, and Ran Shabbat 19a s.v. tanu (as explained by Bet Yosef 318:4) holds that Ein Bishul Achar Bishul applies to solids and liquids, but the Rosh Shabbat 3:11 argues that it only applies to solids and reheating liquids would be Bishul. The Shulchan Aruch is strict for the Rosh. Even though the Rama theoretically holds like the Rashba in practice he is only lenient if the liquid was originally hot on Shabbat and didn't cool down completely. | |||
* The Chazon Ish OC 50:9 holds that for water there's no dispute and everyone agrees that there's a Biblical violation of Bishul to reheat it since after it was heated up and cooled down there's no lasting effect of the original cooking on the water. He applies the same logic to reheating metal multiple times in regards to [[Electricity on Shabbat]].</ref> | |||
===Examples of Bishul with non-foods=== | ===Examples of Bishul with non-foods=== | ||
