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Don’t you just hate cutting onions or am I the only one?  I use a lot of onions in my recipes but I hate that they always make me cry!  Though my years of cooking, here are my favorite tips on how to cut onions without crying.

Onions on a cutting board with a knife next to it.
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How to Cut Onions without Crying

I personally like to buy onions when they are at their cheapest and then chop them all up at once. Then I freeze them. See Can you Freeze Onions?This is a great way to save money and then I always have chopped onions on hand to make some of my favorite crock pot recipes.

Through my years of cooking and doing live videos, I have heard all of the tips and tricks to cut onions without crying including red onions.  These are the one that I have tried and have worked for me.  If you have tips that work, please let me know about them in the comment on this post.

Overview of Onions on a Cutting Board with a knife

Why do cutting onions make you cry?

The first step to chopping onions without shedding a tear is to first understand why chopping onions make us cry in the first place.

When you cut an onion, it damages the cell walls of the onion and then the onion releases sulfuric compounds as a defense mechanism.  Many of compare these sulfuric compounds to tear gas and if you had cut lots of onions before you know this is definitely true.

However, onions make our meals delicious, so we must push through these compound and chop these onions to provide delicious flavor to our meals.  Here are a few of my favorite tips to chopping onions without crying and I hope they help you cut onions and not shed a tear!

Chopped Onions, Sliced Onions and Whole Onions on a Cutting Board

Cut Under Cold Running Water

This is pretty self explanatory, just chop your onions under some cold running water. The running water redirects the onion vapors away from your eyes, leaving you tear-free.

When doing this I usually place a cutting board in the bottom of my sink and run cold water while cutting the onion.

Try Breathing through your Mouth 

If you breathe through your mouth while chopping or making sliced onions, the compounds will be absorbed through your mouth prior to them making it to your eyes.

Sometimes this can be hard to do, so I recommend chewing gum and some say to place a piece of bread in your mouth to absorb the compounds (but I haven’t tried this one yet).

Chopped Onions, Sliced Onions and Whole Onions on a Cutting Board

Sharpen your Knife

A sharp knife will make a cleaner cut in the onion and causes it to release less compounds when being sliced or diced.

Also, some say that placing fresh lemon juice your knife before cutting will help prevent crying while cutting the onions.

Soak Them 

Although this method makes your onions slightly milder, it works well in many foods. Just soak your onion in a bowl of water for about 15 minutes and then chop it.

The water absorbs the onion’s sulfuric compounds, making their taste more mild and taking away the chemical release that causes your eyes to sting.

Freeze Them

For this method, just pop your onion in the freezer for 15 minutes before you cut it. Chilling the onions keep them from releasing their eye irritating chemicals.

Chopped Onions, Sliced Onions and Whole Onions on a Cutting Board

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Cut Under a fan

If your kitchen has a good overhead fan, you can easily keep tears away. Just turn it on and chop your onions underneath it. The fan redirects the fumes to it and away from your eyes.

Cut the root off last

Cut the root edge off last after you have cut the rest of the onion. Some say that the most tear inducing fumes are held in the root, so save that for last to save some tears.

Wear Goggles

If none of the above methods work out for you or you just have no tolerance for the onion’s stinging effects, try a pair of onion goggles.

While there are goggles made specifically for cutting onions, a pair of cheap swim goggles work just as well. This method keeps the fumes out of your eyes completely which means no tears.

Chopped Onions, Sliced Onions and Whole Onions on a Cutting Board

Print our Cutting Onion Tips Here: 

How to cut Onions without Crying

5 from 1 vote
Easy tips to help you cut onions without crying.
Prep Time 5 minutes
Total Time 5 minutes
Servings 2
Cuisine American
Course Side Dish
Calories 0.2


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  • Cut onions under cold running water to help redirect the vapors away from your eyes.
  • Breath through my mouth so that the vapors are absorbed through your mouth before they reach your eyes.
  • Sharpen your knife as a sharp knife will cause less fumes to be released from the onion.
  • Place the onions in the freezer for 15 minutes or soak them in water for 15 minutes before cutting them as chilled onions release less compounds and the water will absorb the compounds that cause the eye irritation
  • Cut the onions around a fan or a vent hood so that the irrants are pulled away from your eyes.
  • Make sure you cut the root edge off last as many of the fumes are held in the root.
  • If all else fails, wear googles while you cut onions to help protect your eyes from the fumes.

Nutrition Facts

Serving 2g, Calories 0.2kcal, Carbohydrates 0.04g, Protein 0.01g, Sodium 0.02mg, Potassium 1mg, Fiber 0.01g, Sugar 0.02g, Vitamin A 0.01IU, Vitamin C 0.04mg, Calcium 0.1mg

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Ok, I know some of these might seem silly, but I hope that you give them a try and come back and let us which one works the best for you!

Check out these other kitchen tips:

Check out my favorite life hacks for how to cut onions without crying. These are the best tips for cutting onions. Check out how to cut up onions without crying! #eatingonadime #lifehacks #kitchentips #cuttingonions

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Hi, I’m Carrie. Welcome to Eating on a Dime!

I’m on a mission to help you cook delicious meals without busting your budget. Together we are going to cook real food… for real families!

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  1. Beverly Coate says:

    While some onions do make me cry I simply open the freezer door and breath the cold air and it immediately goes away. Another trick is to buy onions with flat roots. If the root protrudes above the onion skin it has been raised without enough water on the plants to make them sweet instead of just hot. This works on all varieties to get good sweet onions that for the most part don’t have as much gas to release on cutting. This would make sense of your tip for cutting the root last. I’ve also found using a flat vegetable slicer with the root on top there doesn’t seem to be any gas at all.

  2. Jenn McClure says:

    Cut the ends off and then use an apple slicer to press the onion into wedges. This prevents you from cutting into the core which when cut is what releases the most potent fumes. Once onion wedges are cut I peel off outer layer easily and then dice smaller the wedges if needed. I refused to cut onions and would always buy pre-cut till I learned this trick!

  3. Carrie says:

    I will have to try that

  4. Vio says:

    Before starting to cut the onions I take a mouthful of water and keep the water in my mouth until I finish chopping the onions. It works for me.

  5. Carrie says:

    I love that tip – thanks so much for sharing.

  6. jimmi says:

    I cut them with a burning candle near by. The fumes are drawn to the flame, instead of your eyes.