How to Cut Soap Bars

Written by errin reaume
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How to Cut Soap Bars
Creating wedges or patterns requires a special cutting tool or mould. (handmade soap image by Alison Bowden from

You can make soap at home with the proper ingredients and the right soap-making method. Cutting cooled soap into bars is the same or similar in every soap-making method. Creating moulds or shapes from soap requires a different cutting process.

Skill level:

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Things you need

  • Cooled homemade soap
  • Soap cutter box
  • Wide sharp knife
  • Cookie cutter
  • Towel

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  1. 1

    Wait until soap has cooled once you've made soap with the method and soap mix you prefer. To cut basic bars, remove the soap block from the pan it was cooled in. Lay a thick towel on the counter and quickly flip the pan upside down on top of the towel to remove soap. If the soap was made over a piece of waxed paper, simply pull up the waxed paper and remove the soap.

  2. 2

    Place the soap block inside a soap cutter box; these can be purchased or made at home. Take a sharp knife and insert it into the wedges of the soap cutter box. Press the knife into the soap block, tip first, pressing the knife further in with the body. Cut even pieces of soap to make squares or rectangles. You can also cut triangles or angular shapes with a knife without a soap cutter box. Some speciality soap cutters make waves or zigzags on the outside of the soap.

  3. 3

    Use a metal cookie cutter to cut shapes into your soap. Circles, suns or any thicker shape works best. Trying to cut very thin and detailed shapes may result in breaking pieces of the soap. Begin by holding the cookie cutter near the edge of the soap block. Press the cookie cutter firmly into the soap, pressing down with your palm on all sides. When the cutter is flat against the counter, lift the cutter out of the soap and push the cut soap piece out of the cutter. Continue pressing the cookie cutter in the rest of the soap until you have used as much of the soap as possible. You can meltdown the leftover soap pieces and make a new soap block or use them as is.

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