hi
recently i have find some packet of old condiment from fast food
(5 year old)
if you know of what i talk
and in that pile i saw some vinegar packet that was closed but is likely to be empty
but wen i open them there only trace of vinegar above 2 drop
but is likely to be very concentrated i accidentaly drop it on my skin and this product sting a lot on skin
and i am wondering if there was the result of a sort of osmose effect because of the bag
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