Bishul: Difference between revisions

*Or Same'ach Shabbat 9:2 explains that kli sheni is completely removed from the possibility of cooking since it is a second derivative of the heat of the fire, similar to ''koach kocho''. See there where he goes so far as to suggest that the concept that ''kalei habishul'' cook in a kli sheni is only rabbinic. Shoel Umeishiv 5:11 has a similar approach, while Shevet Halevi 7:101:2 and Shulchan Shlomo 318:11:2 cited by Torat Melachot v. 2 p. 134 disagree with the approach of the Or Same'ach.</ref>

#There is disagreement amongst the poskim as to which types of food fall into the category of Kalei Bishul, foods for which it is forbidden to pour from kli sheni onto them.<ref>*The Mishna on Shabbos 145b explains that, although it is forbidden to place uncooked foods into a Kli Rishon on Shabbos, one would be permitted to pour hot water onto these foods from a Kli Sheini. Rashi explains that this act of pouring is not considered Bishul and would therefore be permissible even if done on Shabbos itself. * However, the Mishna goes on to explain that there are certain types of fish for which even pouring would be considered a legitimate act of Bishul as they are more “easily cooked” and therefore considered to be within the category of Kalei Bishul. Since the Mishna writes that even pouring from a Kli Sheini would be assur, we can derive that placing these types of foods directly into a Kli Shinei would be forbidden as well. * There is a disagreement amongst the poskim as to which types of foods fall into this category of Kalei Bishul. The Mishna Brurah (Be’ur Halacha Siman 318 S”K 4) writes that any food which the Gemarah does not explicitly leave out of the category of Kalei Bishul would be forbidden to be placed into a Kli Sheini. However, the Chazon Ish (Siman 52 S”K 19) limits the category of Kalei Bishul. He explains that the only additional items which would be considered Kalei Bishul are those which appear to be easily cooked</ref>

#It’s forbidden to put any non-cooked food into a Kli Sheni which has the temperature of 113 degrees or greater <ref>Shemirat Shabbat KeHilchata 1:53 </ref> except a few items including water, olive oil, ginger, cinnamon, ox-meat, <ref>39 Melachos (vol 2 pg 579-580) </ref> and milk.<ref>Mishna Brurah 318:39 at the end </ref>

#Certain foods (such as potatoes, meat, kugel, or whole beans) store heat and should be treated as a Kli Rishon as long as it’s 113 degrees even if transferred to a Kli Sheni or Shelishi.<ref>Shemirat Shabbat KeHilchata 1:58 </ref> For example, one shouldn’t put butter or seasoning on a hot (113 degree) potato or piece of meat.<ref>Shemirat Shabbat KeHilchata 1:58 </ref> An exception to the rule, is that salt and some say even ketchup may be placed on the hot foods.<ref>Shemirat Shabbat KeHilchata 1:58 because they are already cooked. </ref>