I heard recently in the name of Rav Hershel Schachter that you can consume Listerine strips (such as these) on both Yom Kippur and Pesach without worry.

I wonder if anyone can confirm this, and explain to me why and how it would be okay? It'd sure change my Yom Kippur...


2 Answers 2


You can listen to him discuss it here at 56:12. He says it isn't rau'i l'achilat adam (fit for human consumption) so it isn't considered eating. He quotes some opinions that it is a problem of washing the inside of the mouth on Yom Kippur, but he doesn't seem so impressed by the idea.

  • See the other answer. I don't know when the recording I linked to is from.
    – Double AA
    Apr 18, 2022 at 15:02

I was just recently asked this shaila, so I told the shoel to contact Rav Shachter directly. Here's what happened: "After trying a few times I finally got through. He was very nice and patient! He said that years back the Listerine strips had no flavor and tasted awful in which case there might be a heter, however these days the Listerine strips have flavor and it’s for sure assur because people actually have benefit from the flavor."

  • Well done for encouraging an enquiry. Apr 18, 2022 at 2:41

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