What is the white liquid that comes out of onions?
By Rachel Davis
When serving onions raw it is a good idea to rinse or even soak them briefly. When cut, onions release a milky substance containing sulfuric acid, sulfur dioxide, and hydrogen sulfide (the latter which causes teary eyes). A sweet onion, such as the Vidalia, is grown in soil with less sulfur.
Is it OK if an onion is milky?
Is it OK? Editor: Jessica, yes, this is absolutely normal! There’s no problem with the shallot. We’ve noticed this milky white liquid in some onions as well as shallots, and it seems to have no effect on the taste.
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