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Onions Left Overnight

Onions Left Overnight

Question:

Hi, I chopped up onions and then realised I will be unable to prepare the dish until tomorrow. Is there any permissible way to leave onions overnight and still be allowed to eat them.

Answer:

For onions left overnight, add in to the onions [even] a small amount of something else, such as oil, salt or sugar. Thus it is considered a mixture and not subject to this concern.

Sources:

Sefer Shmiras Haguf Vhanefesh pg 25 cites a number of authorities who maintain that being that we are dealing with a spiritual danger whose nature and mechanics is not understood to us, we apply the rule only to the exact case it was taught on, i.e. without a mixture.

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