Why can I open a bag of potato Chips and not rip toilet paper?

  • 9
    Because you're bad at ripping things??
    – Double AA
    Mar 28, 2012 at 3:49
  • Your joke got snubbed @DoubleAA Jun 19, 2012 at 3:34

3 Answers 3


A discussion about opening a bag of potato chips, according to various poskim, can be found on the YUTorah.org website. A related discussion by Rabbi Dovid Ostroff regarding tearing toilet paper is also available.

From the first link:

Furthermore, there may be no violation of koreya here either: the Tosefta (Shabbos 17:9), cited in the Mishnah Berurah (314:25), allows tearing the leather covering of a barrel without concern for koreya, and many understand the reason to be that even if the covering is not destroyed, it is batel (subordinate) to the barrel, and tearing the covering is therefore like the mere removing of a nut from its shell (though see Chazon Ish above and 61:2 for a different explanation). Some poskim claim that our case is comparable, and thus permit tearing the bag (see Igros Moshe, Orach Chaim 1:122, R’ Neustadt in The Weekly Halachah Discussion p.134-138, and Tikunim u-Miluim to Shemiras Shabbos ke-Hilchasah 9:11). Others (cited in Shemiras Shabbos ke-Hilchasah, ad loc. note 11) employ other factors for leniency, combining the opinions that the biblical prohibition of koreya only applies when doing so al menas litfor (in order to sew it later), that it is not koreya when the tear itself constitutes a tikkun, and that koreya is not violated when tearing one entity into two (rather than the tear separating two attached items).

If we take this first reason, we can understand why it would not apply to toilet paper. It is not batel. I'm uncertain about how it differs given the other two reasons.


You ARE allowed to rip toilet paper, but only as long as you do not rip from the perforated lines on the toilet paper. I think that the problem from ripping the paper at the perforation is that it constitutes measuring, which is a melacha. I don't know the source of this answer, it's just what I heard from a couple orthodox Rabbis.

  • 3
    It could also be a problem of "tikun maneh" which is a subcategory of "makeh b'patish".
    – HodofHod
    Oct 12, 2012 at 22:50
  • Here is a source, which actually notes both.
    – JNF
    Oct 14, 2012 at 6:38
  • @JNF, both what? It mentions "מתקן מנא" but not "measuring" AFAICT.
    – msh210
    Oct 18, 2012 at 15:01
  • @msh210 both paper and food packages.
    – JNF
    Oct 20, 2012 at 20:11
  • It seems like you can't rip toilet paper even if you don't use the perforated lines because it becomes a utensil: chabad.org/library/article_cdo/aid/484233/jewish/…
    – Ani Yodea
    Aug 21, 2014 at 18:38

there is a leniency that you are allowed to tear for the purpose of eating food so long as you destroy the vessel (and not tear letters!!). i believe you must tear the bag in a way that makes it unusable

  • Does that mean you can't open packages of snacks by pulling on the two sides and have to rip it (should this be a separate question?)
    – yydl
    Jan 26, 2011 at 0:08
  • @yydl i think u can since u are destroying the vessel
    – avrohom
    Jan 26, 2011 at 0:09
  • 1
    Where is this Heter stated about food I have heard and never seen it Jan 26, 2011 at 0:57
  • avrohom, mi.yodeya is a forum for answers with sources when possible. "They say", "I have heard", "I once learned" "There is" are all fine when accompanied by sources. I am not saying I have been perfect in this regard but for common she'ailos such as this, a little effort with regard to sources would be greatly appreciated!
    – Yahu
    Jan 26, 2011 at 2:00
  • does anyone know where the heter for food allowing ripping on SHABBOS and not YOM TOV where I know it exists comes from Jan 26, 2011 at 3:17

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .