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Can I brush my teeth on a fast day?


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Rabbi Yossi Turk: Bienvenidos Welcome. Un minuto ya lo atiendo. I'll be with you in a moment...

thinking_minty: can I brush my teeth on a fast day?1

Rabbi Yossi Turk: hi

Rabbi Yossi Turk: try not to

thinking_minty: ok, but my mouth is really dry and my breath stinks. is there anything I can do about it?

Rabbi Yossi Turk: if you really feel the need to, you may brush your teeth but make sure not to swallow any of the water2

Rabbi Yossi Turk: or you can use use listerine or mouthwash

thinking_minty: ok

thinking_minty: ok thanks

thinking_minty: have an easy fast

All names, places, and identifying information have been changed or deleted in order to protect the privacy of the questioners. In order to preserve authenticity, the chat sessions have been posted with a minimum of editing. Please excuse typographical errors, missing punctuation, and/or grammatical mistakes which naturally occur in the course of informal chat sessions.


  • 1. One may not brush teeth on Yom Kippur nor on the 9th of Av (Tishah B'Av)
  • 2. Nitei Gavriel, chapter 3:3 and 57:5


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