How to Cut Onion without Crying- HomeArtTv by Juan Gonzalo Angel
Channel: HomeArt TV
Date: 13/09/2018

@juangangel
You've probably heard dozens of old wives' tales and pseudo-scientific advice for cutting onions without tears. Two of the most ludicrous are holding burning matches in your mouth while you chop, a fire hazard to say the least, and chewing on a raw onion, which merely adds more onion close to your mucus membranes. Most of these homespun ideas just aren't very effective, but we've got five tips which are.

Cutting an onion produces a series of chemical reactions that unleashes propanethial S-oxide, an irritant that causes the eyes to fill with tears. If you want to prevent tears, you have to chop in a way that produces less irritant, and prevents the irritant from reaching your eyes.
Fuente
https://www.thekitchn.com/five-tips-on-how-to-cut-onions-1-44517
Juan Gonzalo Angel Retrepo