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Preparing tomatoes for a recipe may require you to seed, core, slice or peel them. Coring a whole tomato is useful when you want to cut fresh tomatoes or slice them thinly. Seeding and coring the tomato is better when you want to avoid absorbing the moisture of the tomato into a dish.

Method 1
Method 1 of 2:

Coring a Whole Tomato

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  1. [1]
  2. Watermark wikiHow to Core a Tomato
    Water on the skin’s surface can cause your grip to slip.
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  3. Watermark wikiHow to Core a Tomato
  4. If you are coring a tomato that has a pointy tip, you can tilt it to one side and core it at an angle.
  5. Insert the knife tip at an angle of approximately 25 degrees from a vertical axis. Push the knife down approximately ½ to 1 inch (1.3 to 2.5 cm) at this angle. [2]
    • Stop inserting the knife when you think the tip of your knife is at the center point of your tomato.
  6. Watermark wikiHow to Core a Tomato
    When you reach your starting point, you can pick up the tomato core and dispose of it.
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Method 2
Method 2 of 2:

Coring and Seeding Tomatoes

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  1. Place it stem side up.
  2. Watermark wikiHow to Core a Tomato
    Hold the tomato together with your other hand and slice it into fourths.
  3. Watermark wikiHow to Core a Tomato
    Cut the white core away from the sides of the tomato. The knife blade should scrape lightly against the inside wall of the tomato.
  4. Discard the seeds and white core. Slice the cored tomato or cut it into smaller pieces. [3]
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Expert Q&A

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  • Question
    How do you correctly cut a tomato?
    Jennifer Levasseur
    Personal Chef
    Chef Jennifer Levasseur is a Personal Chef and the Owner of The Happy Cuisiniere based in Breckenridge, Colorado. She has over 12 years of culinary experience and specializes in Mountain and Contemporary Rustic cuisine. Moreover, she can craft dishes and modify menus to accommodate dietary restrictions, such as gluten-free, vegetarian, vegan, pescatarian, and dairy-free diets. In addition to a Bachelor’s degree in Marketing and Management from the University of Houston, Chef Jennifer holds Associate’s degrees in Culinary Arts and Baking & Pastry Arts from Houston Community College.
    Personal Chef
    Expert Answer
    Use a separated knife and cut with a sawing motion, letting the blade all the work (rather than forcing the blade down).
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      Warnings

      • Be careful when working with sharp knives. Knives that are sharp enough to cut tomatoes are a safety risk to people working hastily or without proper knife skills.
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      Things You'll Need

      • Water
      • Tomatoes
      • Sharp paring knife

      About This Article

      Article Summary X

      To core a whole tomato, rinse it under cool water and pat it dry. Pull off the stem and set the tomato on a flat surface with the top facing up. Insert the tip of a sharp paring knife into the top of the tomato next to the spot where the stem used to be attached. Hold the knife at a slight angle and cut around the core in a circular motion. Once you’ve cut all the way around, pull the core out or pry it out with the tip of the knife. For more tips, including how to seed tomatoes, read on!

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