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www.vsp.com/eyes-burn.html

A VSP eye doctor explains why onions make your eyes burn when you slice and dice them and provides seven ways you can cut onions without getting weepy.

lifehacker.com/tested-the-best-tear-free-tricks-for-cutting-onions-476088845

Apr 18, 2013 ... To do this torture experiment, I carefully diced all-purpose yellow onions according ... About ten seconds later, stinging tears joined my burning eyes. ... Verdict: Useless, unless your goal is just to mask the onion smell in your ...

www.thoughtco.com/why-do-onions-make-you-cry-604309

Apr 30, 2017 ... Find out why you cry when you cut onions and how you can keep it ... The sulfuric acid burns, stimulating your eyes to release more tears to ...

www.loc.gov/rr/scitech/mysteries/onion.html

Onions produce the chemical irritant known as syn-propanethial-S-oxide. It stimulates the eyes' lachrymal glands so they release tears. Scientists used to blame ...

www.wikihow.com/Chop-Onions-Without-Tears

Why do onions make you cry, and how can you prevent it from happening? ... Your eyes will tear up to try to remove the enzymes and burning sensation, but if  ...

www.leaf.tv/articles/how-to-soothe-eyes-tearing-from-cutting-onions

Lots of tips exist to help you prevent crying caused by cutting onions, including chilling the ... The fumes waft up toward the small glands in your eyes and cause you to tear in an attempt to ... If you failed to do that, then treatment is called for.

www.pbs.org/newshour/rundown/why-do-onions-make-us-cry

Feb 22, 2011 ... This gas wafts up from the onion and reacts with the natural water in your eye to form sulfuric acid, which brings about the familiar stinging ...

www.todayifoundout.com/index.php/2010/11/why-onions-make-your-eyes-water

Nov 5, 2010 ... When this substance, in a gaseous state, comes in contact with the moisture in your eye, it triggers a burning ... Best Ways to Stop Onions From Making Your Eyes Water ... The syn-propanethial-S-oxide that cause the eye irritation is water ... How the Calorie Content of Food is Determined · Why Do Asian ...

www.scientificamerican.com/article/what-is-the-chemical-proc

"The rowdy onion joins the aristocratic shallot, the gentle leek, the ... Incidentally, sulfenic acid in garlic takes a different chemical route, sparing the eyes. ... the central nervous system interprets as a burning sensation--in proportion to the ... But do not forgo the sensory pleasure and healthful effects of Allium cepa.".

www.everydayhealth.com/healthy-living/why-do-onions-make-us-cry.aspx

Sep 21, 2011 ... Enzymes in the onion that release a pungent gas when you slice into it, and when the gas comes into contact with your eyes, it forms sulfuric ...