Because vinegar is a preservative. Acetic acid I believe.
2007-10-04 07:56:17
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answer #1
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answered by Anonymous
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because vinegar is a preservative, it has properties which make whatever is "pickled" last a very long time.
2007-10-04 09:17:04
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answer #2
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answered by Kerry A 3
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It is a preservative and stops the onions going off.
2007-10-04 08:13:11
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answer #3
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answered by naplusultra 4
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Apple Cider Vinegar Benefits - http://AppleCiderVinegar.siopu.com/?DBI
2016-06-22 03:57:16
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answer #4
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answered by ? 3
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Because it pickles them and it is not poisonous at normal quantities
2007-10-04 07:57:57
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answer #5
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answered by Maid Angela 7
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Because that's what pickling is...marinated in vinagar & spices.
2007-10-04 08:44:40
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answer #6
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answered by ~ Floridian`` 7
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because it retards the growth of bacteria giving a preservative effect
2007-10-04 08:10:12
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answer #7
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answered by andy t 6
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because it makes the onions taste nice,, if you dont like vinagar try erm milk, custard, orange juice, then your know for sure why they use vinagar
2007-10-04 07:57:52
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answer #8
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answered by robppc20022002 2
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yes because vinegar is sour
2007-10-04 07:56:00
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answer #9
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answered by karina j 1
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because pish does not work
2007-10-04 08:10:55
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answer #10
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answered by Ted Bundy 2
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