I have heard many people state that using Challah* rolls that are baked in one unit to be pulled apart might be a problem for making Leḥem** Mishneh on Shabbath. In fact, there are rolls that are sold in my local supermarket that have a sticker on the outside of the bag that says something to the effect of, "Ask your rabbi about Lechem*** Mishneh."

I've heard some people state that, in fact, it is not a problem from that perspective, since the rolls are meant to be used separately.

My question, though, is that if the latter opinion is correct, wouldn't that make it an even bigger problem, namely completing the creation of some product, or does this not apply to food?

CYLOR, of course.

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    *I know I'm deviating from my adopted transliteration scheme. But my childhood got the best of me in this one. I can't spell Challah any other way. – Seth J Jan 10 '12 at 21:19
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    **I'm being internally inconsistent, I know. – Seth J Jan 10 '12 at 21:19
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    ***I'm using their spelling. – Seth J Jan 10 '12 at 21:19
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    Very related, but not a dupe: judaism.stackexchange.com/questions/1055/… – Isaac Moses Jan 10 '12 at 21:23
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    @SethJ See Gemorah Shabbos Daf 50b with Rashi and Tosfos. Tehillah L'David Siman 318 Sif-Katan 20 and what he brings from the Rashba that asks on Rashi. See ShuT Maharsham Chelek Alef Siman 164, See Yabia Omer Chelek Ches OC Siman 35.) See Shevat HaKahasi (from R' Shammai Gross Shlit"a) in Chelek Vav Siman 165. See Minchas Chinnuch in B'Mosach HaShabbos Melachos Ofeh Sif-Katan 8. See ShuT Bar Yitzchak OC Siman 13 Anaf 8 d"h "v'nidan"). See Shitas Yerushalmi in regards to makeh b'patish in Ochlin SHabbos Daf 48b and viter. See also M"B Siman 319 Sif-Katan 22. – Yehoshua Jul 7 '13 at 20:31

The question of Makah B'Patish comes into play regarding opening bottles, cans and packages on Shabbos. Even by these items there is a dispute amongst the Poskim whether this is allowed as it may already be a Kli prior to opening them or not allowed. Even among those that do not allow opening these on Shabbos there are those that hold if you immediately use the contents and dispose of the container then you are not using it as a Kli and you may. I have not seen any Poskim having concerns regarding breaking apart Challa rolls which leads me to believe that there is no issue of Makah B'Patish over here.

  • What does everything but your last sentence have to with the question? – Double AA Mar 14 '14 at 16:04
  • @DoubleAA He was showing you how much he has seen so you would understand the significance of his having not seen :) – Y     e     z May 6 '14 at 18:52

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