How to Make Cold Process SoapInterested in Cold Process soapmaking? Cold Process or CP soap is our first and true love here at Bramble Berry. Anne-Marie (owner & founder of Bramble Berry) has made thousands of pounds of soap and really knows what goes into making a beautiful and luxurious bar of soap. In a nutshell, Cold Process soap is made by mixing fatty acids and sodium hydroxide (oil & lye) which then triggers the saponification process. Sounds like magic, but really it's part chemistry part artistry. Never fear; you don't have to be a scientist or an artist to make soap! You just need to know and understand a few basic principles and safety precautions.

A Simple Cold Process Recipe with Natural Ingredients

Get everything you need to make this recipe here.

Important Info


  • Sodium Hydroxide (also known as lye) is absolutely necessary for making soap. It is also a caustic and dangerous chemical. Make sure you are fully educated on the safe handling of lye before you make your first batch. For more information watch this excellent video on lye safety.
  • Once you understand the basics of lye safety get started with this Free Beginner's Guide to Cold Process Soap Making.
  • At least one good book is essential to safe and successful Cold Process soapmaking. We recommend Soap Crafting or The Everything Soap Book.
  • Different fragrances can produce different results in cold process soap making. Learn how to test fragrances and the items necessary in Testing 1,2,3! 
  • Perhaps the best part about making your own soap is that it can be incredibly creative and artistic. This guide to Understanding Color Theory Terminology will set you on the path to creating your own colorful, unique designs.
  • Oils

    Every soaper has favorite oils, fats, & butters. Here you can find the varied saponifiers we have on offer, from Avocado Butter to Vitamin E.

  • Lye

    Also known as Sodium Hydroxide, this is what starts that magical process called saponification. Our lye is flaked and not granulated. Take a look at some of the great reviews.

  • Molds

    Wooden molds are ideal for Cold Process soap, and we have a large array of molds as well as liners perfect for making professional looking bars.

  • Beginner's Cold Process Soap Kit

    The perfect place to start, this kit comes with everything you need to make your first batch of cold process soap, including Anne-Marie's E-Book, Making Cold Process Soap.

  • A Rebatch Soap Making Kit

    Excited to try your hand at cold process soap making? Not ready, willing or able to work with lye? For the natural goodness of handmade soap without the hassle try our Rebatch Soap Kit.

  • Almond Chocolate Lavender Soap Kit

    A unique soap perfect for the gourmet-foodie out there. You can create a gorgeous two-tone soap with a light exfoliant and a delicious fragrance using this kit.

  • Infusing Kit

    Are you the experimental type? This kit will get you started with the ancient art of infusing.

  • Stamps

    Personalize your soap easily and economically with an impressed design.

  • Crazy For Cubes Soap Kit

    This colorful kit will produce a great, big batch of cubed soap.