# Onions
**URL:** https://boards.straightdope.com/t/onions/5723
**Category:** Factual Questions
**Created:** [March 18, 1999, 2:00pm UTC](https://boards.straightdope.com/t/onions/5723 "1999-03-18T14:00:00Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 18, 1999, 2:00pm UTC](https://boards.straightdope.com/t/onions/5723/1 "1999-03-18T14:00:00Z")
Okay, could someone please explain to me why onions make people cry? Not only do I tear up when I chop onions, my sinuses ache, and the smell becomes pretty much unbearable. What sort of chemical or whatever is in there that can cause such a reaction?
~Kyla
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 19, 1999, 6:03am UTC](https://boards.straightdope.com/t/onions/5723/2 "1999-03-19T06:03:00Z")
Kyla -
Go to this page for a brief-but-all-you-ever-cared-to-know answer to your questions.
[http://www.sciam.com/askexpert/chemistry/chemistry1.html](http://www.sciam.com/askexpert/chemistry/chemistry1.html)
I never knew onions were so much fun! Did you know that “onion tears” and tears of grief/stress/etc. are chemically different?
* * *
Good for what ails ya…
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 19, 1999, 6:06am UTC](https://boards.straightdope.com/t/onions/5723/3 "1999-03-19T06:06:00Z")
Interesting, onions no longer have that effect on me…
You know, you can put something betwixt your lips when you cut them and itll make it easier, or so I read.
–onion tolerant
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 19, 1999, 6:15am UTC](https://boards.straightdope.com/t/onions/5723/4 "1999-03-19T06:15:00Z")
I believe that some people cry in lament over the death of an onion: Evil man exploiting the noble onion for self-gratification.
* * *
The Trustworthy Troglodyte
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 18, 1999, 7:11pm UTC](https://boards.straightdope.com/t/onions/5723/5 "1999-03-18T19:11:00Z")
> [@](#):
>
> You know, you can put something betwixt your lips when you cut them and itll make it easier, or so I read.
Not unless it’s a lit match.
## Cooks Illustrated magazine tested about two dozen common “folk” techniques used to reduce tears when chopping onions. Most failed miserably. I’ll have to dig up the issue and report back. As I recall, the only nearly foolproof methods were: 1) Wear contact lenses; or 2) Wear goggles. Keeping a lit candle nearby worked fairly well, as did keeping a lit match in your mouth (but the candle is easier). Beyond that, nothing really worked at all.
- Mark
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 18, 1999, 7:21pm UTC](https://boards.straightdope.com/t/onions/5723/6 "1999-03-18T19:21:00Z")
Try pealing onions under water (the onion, not you).
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 18, 1999, 9:02pm UTC](https://boards.straightdope.com/t/onions/5723/7 "1999-03-18T21:02:00Z")
> [@](#):
>
> Keeping a lit candle nearby worked fairly well, as did keeping a lit match in your mouth (but the candle is easier).
Yes, it seems to me it would be difficult to keep the lit match in your mouth once you start screaming when the flame reaches the tip of your nose. Besides, the smell of singed nostril hair always makes me tear up as badly as chopping onions. . .
Rich
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 18, 1999, 10:05pm UTC](https://boards.straightdope.com/t/onions/5723/8 "1999-03-18T22:05:00Z")
Or you can have what I’m going to when I’m rich and famous and get to design my own kitchen.
I worked in a restaurant for about a year that had a high powered, lab style hood in the food prep area. I would stand there, lower the partition so that my hands were underneath, but me eyes were looking through, the glass, and my standard chore of 50 pounds of diced, 25 pounds of sliced and 10 pounds of whole peeled onions each night was just not a problem.
The “onion hood” is an idea whose time has come! Any venture capitalists out there ready to market it with me? You’ll be rich as Croesus, I tell you.
* * *
- Through the modem, past the router, over the firewall… nothing but 'Net -
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 18, 1999, 11:14pm UTC](https://boards.straightdope.com/t/onions/5723/9 "1999-03-18T23:14:00Z")
My mother swore by the “bread crusts under the eyes” technique. I don’t know if it helped her sinuses, but she claimed she didn’t cry at all.
I avoid the problem, on the extremely infrequent occasions I’m called upon to chop an onion, by chopping it as quickly as possible and getting the heck out of the room.
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 19, 1999, 3:53am UTC](https://boards.straightdope.com/t/onions/5723/10 "1999-03-19T03:53:00Z")
> [@](#):
>
> Try pealing onions under water (the onion, not you).
I did. They float. It wasn’t pretty.
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 20, 1999, 4:03am UTC](https://boards.straightdope.com/t/onions/5723/11 "1999-03-20T04:03:00Z")
> [@](#):
>
> Try pealing onions under water – PapaBear
I tried that, but they didn’t make a sound.
* * *
The Dave-Guy
“since my daughter’s only half-Jewish, can she go in up to her knees?” J.H. Marx
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 20, 1999, 4:46am UTC](https://boards.straightdope.com/t/onions/5723/12 "1999-03-20T04:46:00Z")
Papa Bear must have been thinking about bell peppers.
* * *
Good for what ails ya…
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 20, 1999, 5:13am UTC](https://boards.straightdope.com/t/onions/5723/13 "1999-03-20T05:13:00Z")
I’m hopeless (hopless? hopeles? hoppless?) without my spell-check.
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 20, 1999, 7:59pm UTC](https://boards.straightdope.com/t/onions/5723/14 "1999-03-20T19:59:00Z")
Kyla, if you hold your breath when you cut them onions, youll do just fine.
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 20, 1999, 11:45pm UTC](https://boards.straightdope.com/t/onions/5723/15 "1999-03-20T23:45:00Z")
> [@](#):
>
> I’m hopeless (hopless? hopeles? hoppless?) without my spell-check. --PapaBear
Alas, PapaBear, unless you also have a context-check, you still wouldn’t have picked it up. Pealing is a perfectly legitimate word. The wrong word, in this case, but a fine and dandy word in its own right.
* * *
The Dave-Guy
“since my daughter’s only half-Jewish, can she go in up to her knees?” J.H. Marx
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 22, 1999, 6:38am UTC](https://boards.straightdope.com/t/onions/5723/16 "1999-03-22T06:38:00Z")
Here it is. The definitive guide to chopping onions without tears (from Cook’s Illustrated, no. 36, p. 10)
Wear contact lenses: Almost no tears, effectiveness (on a scale of 1 to 10): 10
Wear ski or swim goggles: very effective, but you look like a kitchen terrorist, 9
Burn a candle near the cutting board: Easy to do, worked pretty well, 6.5
Place cutting board near a lit gas burner: worked as well as a candle, 6.5
Refrigerate whole onion for 8 hours: chilled onions, some tears, 5
Refrigerate quartered onion for 8 hours: even colder onions, some tears, 5
Freeze onions for 30 minutes: Coldest onions, some tears, 5
Hold a slice of bread in your mouth: looked silly, didn’t work consistantly, 5
Balance a slice of onion on your head: looked silly, slowed down tears a little, 5
Hold a lit-and-put-out match in your teeth: looked silly, but worked bettter than unlit match, 4
Slice onions under a running faucet: so frustrating the tears didn’t matter, 3
Trim ends off onions and microwave for 1 minute: onions began to cook, minor tear reduction, 3
Hold a toothpick in your teeth: looked silly, cried a lot, 2
Work under an exhaust fan: Not at all effective under a home exhaust, very good under the test kitchen’s professional-caliber exhaust, 2
Tie a scarf around nose and mouth: looked silly, minor tear reduction, 1
Soak onion in ice water for 30 minutes: wet onions, lots of tears, 1
Blanch onions for 1 minute: slimy onions, lots of tears, 1
Wipe cutting board with vinegar: Vinegary onions, lots of tears, 1
Slice onions next to a running faucet: didn’t work, lots of tears, 1
Slice onions in a large plastic bag opened at both ends: awkward and dangerous, plus didn’t stop the tears, 1
Hold an unlit match between your teeth: looked silly, cried a lot, 1
## Leave root end on onion intact: didn’t work, 1
- Mark
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [March 22, 1999, 8:49pm UTC](https://boards.straightdope.com/t/onions/5723/17 "1999-03-22T20:49:00Z")
> [@](#):
>
> I did. They float. It wasn’t pretty.
They must have been fiber-rich. . .
Rich
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [April 1, 1999, 10:23am UTC](https://boards.straightdope.com/t/onions/5723/18 "1999-04-01T10:23:00Z")
I used to cry terribly in the kitchen when I sliced onions. So now I slice them in the dining room.
But seriously, the single most important thing to remember when handling onions is:
DO NOT TOUCH YOUR FACE!
It does not mater how much your nose itches, or if your eyes are starting to mist. If you have handled onions, letting your hands get anywhere near your face will only make the experience worse.
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [April 12, 1999, 3:16pm UTC](https://boards.straightdope.com/t/onions/5723/19 "1999-04-12T15:16:00Z")
The single most important thing to reduce onion tears is: make sure your knife is _ **sharp!** _
The fumes that cause the tears are released in greater quantities by the crushing effect of a dull knife, whereas a sharp knife slices with a minimum of crushing. Also, make sure you are imparting a slight forward motion to the knife when cutting, instead of just shoving the knife straight down.
* * *
Live a Lush Life
Da Chef
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### Author:  [@system](https://boards.straightdope.com/u/system)
#### Post date: [April 14, 1999, 10:41pm UTC](https://boards.straightdope.com/t/onions/5723/20 "1999-04-14T22:41:00Z")
I realize I’m rather late in finding this thread…but I wanted to say that I wore contacts for years and they never seemed to have much effect on reducing the amount of tears I shed. On the other hand, since I got a set of really good, really sharp knives…I have noticed a definite reduction in both how much I cry and how much blood I spill in the kitchen these days.
Yes, I’m just kidding on the last part. Ha ha.
As to not touching your face and eyes while and after cutting onions, I think this is (big surprise) far more true of various hot peppers. I once, in the midst of a macho chilli cook off, used just about every hot pepper know to personkind. And YES… I did wash my hands…um, kinda. I then took out my contacts, washed them, went wee wee and realized that both my eyes and um…well, things hurt. The really stupid part came the next morning when i tried to put my contacts back into my overly sensitive eyes and the essential oils that coated the contacts nearly made me claw my own eyes out. (This is only the beginning of a much longer story which I’ll spare you here…grin…for a complete copy of how I spent the day skiing on a mentally handicapped discount at Winter Park and ended up looking the part just write me…lol… )
Just once, I swear, I’ll post a response in 20 words or less.
* * *
Kevin
Pain shared is lessened,
Joy shared increased.
-Spider Robinson
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