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10 Tips For Chopping Onions Without Shedding A Tear

Posted By Tipnut On August 3, 2011 @ 12:35 pm In Food Tips | 13 Comments

Have a big batch of onions to chop and not looking forward to the crying session ahead? Here are a few tips and tricks that just may help you avoid those tears. First, why do onions make us cry? Science Focus shares this tidbit [1] of info:

The action of cutting an onion releases a fine spray of droplets. Recent Japanese research has shown that these droplets contain an enzyme called lachrymatory-factor synthase and sulphur-containing compounds, which react to produce a powerful irritant called Syn-propanethial-S-oxide. When a droplet strikes your eye, you respond by producing a copious flow of tears to try and wash the irritant away.

We cry because our eyes are irritated by droplets the onion releases when we chop them. Now that we understand the reason why tears + onions are a duo, here are a few ways we can help prevent that from happening…

If Chopping Onions Tears You Up, Try These Tips

If Chopping Onions Tears You Up, Try These Tips

A few of these are vintage or old wives tales and results will vary for each person, one person will swear a method works while another finds they still cry a bucketful. Could it be that each person has a different tolerance level? Or maybe the type of onion being cut makes a difference? Maybe it’s how fresh or aged an onion is. Who knows! Try the tips below until you find the best fit for you. Good luck!

  1. The cells from a cold onion react slower when cut, refrigerate onion for at least 30 minutes before chopping & peeling or try freezing for about 10 to 15 minutes (depending on size) before slicing into it.
  2. Cut onion under water (either under a running tap or in a sinkful of water). The water will dissolve the sulfur compounds before they can reach your eyes. Source [2].
  3. Chop with a very sharp, stainless steel knife that has been run under water before starting to slice. If cutting a lot of onions or even a single large one, run knife frequently under water. The water will help absorb the sulfur compounds and a sharp knife will make a cleaner cut, bruising the onion cells less which theoretically means causing less reaction. Why a stainless steel knife? Stainless steel is thought by some to attract the sulfur compounds.
  4. Light a candle or votive near the cutting board or if you have a gas stove, light a burner. Cut onions as close to flame as possible without danger of being burned. The heat will draw the sulfur to it and away from your eyes.
  5. Have a fan blowing the droplets away from your face while cutting onions.
  6. Chew gum, have a piece of bread or sugar cube in your mouth. Why does this work? The theory is that having something in your mouth encourages you to breathe through your mouth, sucking in the droplets before they hit your eyes.
  7. Do you trim both ends off the onion before peeling & chopping? Stop! Try leaving on the root end until the very last since the sulfur compounds are more concentrated near the root.
  8. Contrary to the tip above, try cutting off both ends of an onion under water then bring up to the cutting board and chop away. Since the root end is removed, the thought is that the worst is behind you.
  9. Lightly spray the cutting board with a 50/50 vinegar and water mix, vinegar apparently halts the sulfur reaction. If a 50/50 mix doesn’t do the trick, try full strength vinegar. This may affect the flavor of the cooked onions.
  10. Wear swimming goggles that fit well, these will seal the area around your eyes so the droplets can’t reach them. Hmmm, cutting one onion doesn’t bother me overly much (usually), but if I had a big batch to do? I just might try it no matter how silly I would look, lol!

Debatable: Wear contact lenses if you have them, the theory is that they’ll protect your eyes from the droplets. Others say no, no, no…the contacts will only trap the droplets between your eyes and the contacts.

Did you know: Strong onion odor can be removed from hands by rubbing them with dry salt? You can also try rubbing lemon juice over hands or running your hands over a stainless steel tap or spoon before washing with soapy water.

Have I missed your tried-and-true method? Please share with us in the comments below :).


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URLs in this post:

[1] shares this tidbit: http://sciencefocus.com/qa/why-do-onions-make-you-cry

[2] Source: http://tipnut.com/cooking-tips-vegetables/

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