A Cook's Diary

Why Does Cutting An Onion Make You Cry?

Why Does Cutting An Onion Make You Cry? | casaveneracion.com

Anyone who has cut or chopped an onion has experienced shedding tears while doing the job. Why does cutting an onion make you cry? Strictly speaking, it doesn’t. “Crying”—out of joy or sadness—means shedding tears as an emotional response. When cutting an onion, you shed tears because there’s something that stings your eyes. That “something” is called Syn-propanethial-S-oxide.

Can’t pronounce it? Neither can I. But it’s not so hard to understand. Read an explanation or watch a video. You may also want to read some tips on how to cut onions with no tears.

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