University of Nebraska Cooperative Extension in Lancaster County

Helping you prepare healthy foods in a hurry

Alice Henneman, MS, Registered Dietitian and Extension Educator
University of Nebraska Cooperative Extension in Lancaster County


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Quick Tip - August 2003

Be Sharp: Use a Chef's Knife

In the time needed to get out your food processor, assemble it, take it apart again and wash it, you can often slice, mince or chop food faster with a chef's knife. A chef's knife can help you make fast work of serving healthy fresh fruits and vegetables.

A chef's knife (also called a French knife) has a broad, tapered shape and a fine sharp edge. Its blade ranges in length from 6 to 12 inches and measures at least 1-1/2 inches at the widest point. It is designed so it rocks on a cutting board as it cuts food.

What size should you get? "For chopping herbs, small fruits and vegetables, etc., I would recommend an 8-inch French knife for most people," advises Chef Judy Doherty, Food & Health Communications, Inc. ( "It is easy to handle and maneuver."

For cutting large foods like a watermelon or cantaloupe, Doherty prefers a 10-inch serrated chef's knife. "It is much safer -- the reason being that you can hold it safely at the handle and the tip. Using a knife that is too small is dangerous if you are trying to cut something large because the knife can slip and go through your hand," warns Doherty.

Some points to consider when purchasing a chef's knife include:

  • Does it feel comfortable when you hold it in your hand?

  • Can you easily manage it when you go through the motions of slicing and chopping?

  • Does the blade feel solid, not lightweight and flimsy?

To help prolong the life of your chef's knife:

  • Many knife companies recommend you avoid washing your knife in the dishwasher. You may damage the blade. Also, wooden handles may not hold up well when washed in a dishwasher. Always dry the knife before storage

  • Follow the manufacturer's directions for sharpening your knife. A sharp knife not only cuts better but is safer than a dull knife. There's a tendency to use too much force with a dull knife, lose control and cut yourself.

  • Avoid cutting on hard surfaces that dull the edge of your knife, such as glass cutting boards. Softer cutting boards, such as polyethylene plastic cutting boards, are much easier on knives.

  • Store your knives in some type of knife block or other storage system that keeps the blades separate. Do not throw them together in a drawer where they can bump against each other and possibly damage or dull the blades.

Learn more about how to use a chef's knife through viewing:

  • VIDEOS on using a chef's knife for various foods and types of cutting tasks from Epicurious under "fruits and vegetables" by clicking HERE.

  • PICTURES of various "knife skills" using a chef's knife from the Food Network by clicking HERE.

Note the manner in which the NON-KNIFE and KNIFE hand are held in the videos and pictures:

  • For the NON-KNIFE hand:

    1. The fingers are curled under to protect the fingertips.

    2. The thumb and little finger behind the other fingers.

    3. The side of the blade (but not the edge) rests against the middle knuckles of your NON-KNIFE hand. This helps you keep the knife from coming down on your fingers. It also helps you measure the size of the cuts, moving your hand backward on the food after each cut in preparation for the next cut.

    4. Cuts are made downward with a rocking motion from the tip to the end of the blade. The knife is not sawed back and forth through foods.

  • For the KNIFE hand:

    • View how the thumb and first finger grip the blade just beyond the handle. This helps make the knife an extension of your arm and gives you better control and precision in cutting.

When finely chopping or mincing some foods, such as small bunches of herbs or garlic, the handle may be held in one hand while the other hand rests on top of the blade. The tip of the blade is kept in contact with the cutting board. The blade is rocked up and down until the food is chopped to the desired size.

To prevent vegetables and fruits from slipping on your cutting board, cut them in half before slicing or chopping further. This helps anchor them firmly on your cutting board and helps protect against cutting yourself.

"Always make sure the cutting board is secured to the counter with a wet cloth or paper towel -- it is dangerous to have a cutting board that moves around while you are trying to cut," cautions Doherty.

If you've never used this type of knife before, Doherty recommends "It is helpful to practice using a French knife on a cucumber that has been cut in half lengthwise -- it is stable and easy to cut."


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Developed By:

Alice C. Henneman, MS, RD
Extension Educator
University of Nebraska
Cooperative Extension in Lancaster County

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Phone: (402) 441-7180
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