Stop Onion Tears and Remove Onion Odors: Simple Kitchen Tricks

If chopping onions feels like an emotional experience, you’re not alone. Some onions hardly bother us, while others have us reaching for tissues before dinner even starts.

I tested a variety of techniques in my kitchen and gathered reader suggestions to find the most effective ways to stop onion tears. There are five core strategies with sixteen practical techniques you can try, plus simple tips to remove onion smells from your hands and kitchen. Want to skip ahead to my go-to method? Go Here.

Why Do Onions Make You Cry?

When you cut an onion, you rupture its cells and release sulfur-containing compounds into the air. These compounds react with the moisture on your eyes, forming a mild acid that stings and triggers tearing. Tears are your body’s natural way to flush the irritant away.

Some onion varieties and fresher onions release more of these compounds, which is why certain bulbs make you tear up more than others. In short, the fresher the onion, the more likely it is to trigger tears.

5 Strategies & 16 Tips for Reducing Onion Tears

Below are the techniques I tried and found useful. They group into five clear strategies — try a few to see what works best for you.

1. Block the Burn

These approaches create a physical barrier between your eyes and the onion vapours.

• Wear swim or ski goggles or dedicated onion goggles: A sealed pair of goggles prevents sulfur vapours from reaching your eyes.
• Hold a metal spoon between your lips: Some people find this redirects vapours away from their face.
• Hold bread, cloth, or a paper towel between your lips: These materials may absorb or deflect some vapours before they reach your eyes.

2. Redirect the Vapours

Use airflow or heat to steer irritating compounds away from your face.

• Use a fan or cut under the oven exhaust: Air movement blows volatile compounds away from your eyes.
• Light a candle beside the cutting board: The candle’s heat can draw vapours toward the flame and away from your face.

3. Distract

These tricks don’t stop the chemical reaction but can reduce the discomfort you feel.

• Chew gum while chopping: Breathing through your mouth can reduce how much irritant reaches your eyes.
• Light and extinguish a match and hold it between your lips: Some people report this helps neutralize a fraction of the compounds or simply distracts from the sting.

4. Work Strategically

How you prepare and cut onions makes a big difference.

• Peel and halve all onions, then chop quickly without leaning over the board: Fast, efficient work and keeping your face back reduces exposure time.
• Use a chopper or food processor and open the lid away from you: Containing the onion inside the appliance releases fewer compounds toward your face.
• Use a very sharp knife: Cleaner cuts rupture fewer cells and release fewer irritants.
• Leave the root end intact until the end: The root holds concentrated enzymes; keeping it whole limits gas release while you chop the rest.

5. Keep Things Cool

Cold temperatures slow enzyme activity and reduce the release of volatile compounds.

• Chill onions in the fridge for 30 minutes or in the freezer for 10 minutes: Cooling slows enzyme reactions and cuts down on irritant release when you slice.
• Peel or slice onions under water, then hold the first cut under cold running water: Water washes away some sulfur compounds and the cold further slows enzyme activity.

Bonus Strategy – Avoid the Issue

• Get someone else to chop onions: If someone else does the chopping, you won’t cry.
• Buy pre-chopped onions: It costs more, but it removes the chore (and the tears).
• Use onion powder: It provides onion flavor without the tears, though the texture and fresh flavor differ.

Have you tried any of these methods? Share your tips and tricks that helped you cut onions tear-free.

My Personal Favourite

My go-to is simple: a chilled onion, a razor-sharp knife, and a quick, confident chop. It’s an easy, reliable combination that minimizes irritation. Tell me your favourite method in the comments.

How to Reduce Smelly Hands and Cutting Boards

• Rub hands and cutting boards with a cut lemon or a lemon-and-salt paste; rinse well afterward. Be cautious if you have chapped skin or cuts.
• Mask the smell with fragrant rubs like coffee grounds or fresh mint from the garden.
• Wear latex or latex-free gloves when doing lots of chopping.
• Some readers mentioned rubbing with stainless steel; others prefer citrus—use what works for you.

How to Reduce Onion Breath

• Chew a sprig of parsley to freshen breath.
• Suck on a slice of lemon.
• Gargle with 1/2 teaspoon of apple cider vinegar mixed into a cup of water.

If a tip here works for you, I’d love to hear about it.