Goodbye tears: the foolproof method to peel onions without crying

25/02/2025

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Benigno Schiavone

Who hasn’t shed a tear while slicing an onion? It’s a common scene in the kitchen, but what if I told you there are ways to avoid this annoying problem?

In this article, we will explore some techniques , ingredients , and tips that can transform your culinary experience and make you forget about onion tears.

Understanding the reason behind the tears

Why do onions make us cry? When we cut an onion, the plant cells break down and release an enzyme that reacts with a sulfur-containing amino acid, producing an irritating gas.

This gas, when in contact with our eyes, turns into sulfuric acid, causing burning and tearing.

The science behind the remedy

Understanding the chemical mechanism behind the tears helps us find effective solutions. So, how can we prevent the reaction or reduce its effects?

Preparation techniques

Cooling the onions

Putting the onions in the fridge or freezer for about 30 minutes can help. The cold slows down the chemical reaction that produces the irritating gas.

Using a sharp knife

A sharp knife reduces damage to the onion cells, limiting the amount of enzyme released. Less enzyme means less irritating gas.

Cutting under running water

Slicing onions under a stream of water can dilute and wash away the irritating gas before it reaches your eyes.

Secret ingredients

Vinegar

Adding a bit of white vinegar to the cutting board can neutralize the enzyme, preventing the formation of the irritating gas.

Lemon juice

Lemon juice works similarly to vinegar and can be sprayed on the onion to achieve a similar effect.

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Expert advice

According to chef Marco Bianchi, the best way to avoid tears is to create a barrier between your eyes and the gas. Wearing kitchen goggles is a simple and practical solution.

Common mistakes to avoid

  • Avoid using a serrated knife: This type of knife can cause more damage to the onion cells, increasing gas production.
  • Don’t cut the onion without a plan: Hasty cutting can lead to more exposure to the irritating gas.

Solutions to common problems

If the above techniques don’t work, try combining different methods. For example, cool the onion and use a sharp knife under running water. If the problem persists, consider using a fan to blow the gas away from your eyes.

With these tips and secrets , I hope your experience with onions becomes tear-free and more enjoyable. Happy slicing!

Benigno Schiavone

I am Benigno Schiavone, a technology and cooking enthusiast. Every day, I immerse myself in the digital world to discover new tricks, while at home, between dishes, I love to experiment with ingredients and flavors.

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