Reusing a Kiddush Cup
Question:
When multiple people make kiddush one after another on a Kos, is it required that the Kos be rinsed in between each person, or is it enough that it was washed before the first person made kiddush and then passed to the next person to make kiddush immediately after without rinsing?
Answer:
Strictly speaking, there is no need, as long as no food was eaten in between. Nonetheless, some are strict to do so. Additionally, for hygiene reasons, it’s best that the cup be washed, or at least the place where the first person drank from should be wiped clean.
Sources:
ראה חיי״א קל, י. משנ״ב תעג, סח. כה״ח שם א. וראה אצלנו:
מנהגי דרך ארץ – שו״ע או״ח קע, טז. ולהעיר מסה״ש תרצ״ז ע׳ 234.
וראה אצלנו כאן.
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