Learn how to cut onions without crying — a simple trick that works every time.
Chopping onions can turn into a tear-filled experience faster than you’d like. But there’s no need to suffer through it — with the right approach, you can chop onions like a pro and keep your eyes dry.
🧅 Why Do Onions Make You Cry?
Onions release a gas called syn-Propanethial-S-oxide when cut. This gas reacts with moisture in your eyes and creates a mild sulfuric acid — which triggers tears.
But here’s the good news: you can stop this reaction before it starts!
🧪 Step-by-Step: How to Cut Onions Without Crying
Step 1: Chill the Onion First
Put the onion in the fridge or freezer for 10–15 minutes before cutting.
Cold temperatures slow down the release of the tear-inducing gas.
💡 Tip: Don’t freeze it completely — just chill it slightly.
Step 2: Use a Sharp Knife
A dull knife crushes cells and releases more gas. A sharp knife slices cleanly and reduces irritation.
Make sure your knife is clean and well-sharpened before you start.
Step 3: Cut Under Running Water
Cutting onions under cold running water helps wash away the irritating gas before it reaches your eyes.
You can also use a bowl of cold water and slice the onion while submerged.
Step 4: Wear Goggles (Yes, Really!)
Swim goggles or safety glasses create a barrier between your eyes and the onion fumes.
It might look funny — but it works!
Step 5: Use a Ventilation Fan or Open a Window
Cooking near a fan or open window helps carry the gas away before it reaches your face.
Even a small desk fan can make a big difference.
🧴 Bonus Tips
- Use yellow onions sparingly — they’re the strongest and most likely to cause tears.
- Sweet onions are gentler — they contain less of the tear-inducing compound.
- Soak cut onions in cold water if you’re using them raw — this removes some of the sting.
❓ Frequently Asked Questions
🧂 Can I soak onions in salt water?
Yes! Soaking onions in salt water for 15–30 minutes reduces their bite and makes them milder.
👨🍳 Should I peel onions before chilling?
No need — just chill the whole onion and peel it afterward.
🥁 Can I use a food processor?
Yes, but pulse slowly and avoid over-processing. Work quickly after chopping to reduce exposure.
🎯 Final Thoughts
Tears don’t have to be part of cooking with onions. With a few smart tricks, you can enjoy slicing onions without the drama.
Try one (or all!) of these methods next time you’re prepping dinner — and say goodbye to teary-eyed chopping.
👉 Have a foolproof onion-cutting hack? Share it below!
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