Slice Onions Without Tears – Chef's Tips for Cutting Onions

Onions are the foundation of almost every delicious dish, but for many, chopping them means flowing tears and uneven pieces. Did you know that the main cause of onion tears isn't the onion itself, but your tools? Yummy's chef Jussi shares his best tips for cutting onions like a dance – and most importantly, with completely dry eyes.

The Foundation: A Sharp Knife

Onion cell structure contains sulfur compounds that are released into the air when cutting. A dull knife "crushes" the onion, releasing significantly more of these compounds directly into your eyes. A sharp knife, on the other hand, glides cleanly through the cells, minimizing irritation.

Sharpening your knife should become a habit before every cooking session. When you take care of your tools, you save both your nerves and your tear ducts.

Knife Care Extends Tool Life

A good knife is the kitchen's most important investment. Regular knife care ensures the blade stays sharp year after year. Here are a few rules of thumb:

• Always hand wash your knife: The dishwasher's heat and detergents dull the blade quickly.
• Use the right cutting board: Wood or soft plastic is friendly to the blade. Avoid glass or stone.
• Store properly: Don't throw the knife in a drawer with other utensils; use a magnetic strip or knife block.

Master the Technique: Cut Like a Professional

Jussi's tips for mincing onions:

• Stay farther away: Don't stand directly over the onion. The farther your face is, the less the sulfur compounds reach your eyes.
• Breathe through your mouth: This helps many avoid the strongest irritation.
• Keep the root intact: When you halve the onion, leave the root end intact. It holds the onion layers together when you make vertical cuts.
• Cutting motion: Don't chop the knife into the board; make a calm, rocking cutting motion. Keep your fingers curled ("bear claw") so the knife rests against your knuckles, not your fingertips.

Red Onion Rings Made Easy

If you want beautiful red onion rings for salad or burgers, cut a small slice off the bottom of the onion. This keeps the onion standing firmly on the cutting board and prevents it from rolling away.

Tip: If your knife feels dull, check out our knife sharpening guide. A little effort in sharpening pays off with every cut!

Save these tips for your next cooking session and enjoy easier (and drier) kitchen time.

Cutting onions doesn't have to be an experience filled with tears and frustration. When you combine a sharp knife, proper technique, and a few simple tips, you'll notice the difference immediately: cutting is faster, onion pieces are more uniform, and cooking feels more professional. Good tools and proper skills make every cooking moment more enjoyable.