A few weeks ago, we introduced Amanda Bosiak, a local soap maker and owner of the brand Pithy and Practical. She creates hot process soaps using a slow cooker, and this week she wants to share some tips if you want to try your hand at soap making!

There are a few tools you’ll need before you begin, listed below soap

  • Slow cooker
  • Immersion blender
  • Kitchen scale
  • Loaf mold
  • Vinegar
  • pH testing strips
  • measuring cups, spatula, mixing bowls



  • Saponifiable oils and butters
  • Sodium Hydroxide (Lye)
  • Distilled water
  • Optional: essential oils, powdered colourant, plain Greek yogurt/sodium lactate

To make your own soap, you’ll first need to find a recipe to follow which Amanda says you can find on Pinterest! You’ll also need to find a lye calculator which will tell you exactly how much lye you need to use based on the amount of oils you have. The lye amount will also vary based on the type of oils you are using. You’ll also need to make sure that you are calculating for hot press soap and not cold press soap. We’ve saved you some time with a recipe you can follow below!


The recipe should include 40% water and 5% super fat. There needs to be quite a bit more water content when taking hot process soaps because as it heats up the water evaporates. So, you’ll need to add more water because you’ll want to keep it as pliable as possible. Superfatting the soap allows it to be softer in the end! Here is the recipe that Amanda works with:

135g Avocado oil
45g Castor oil
135 Cocoa butter
225g Coconut oil
90g Olive oil
225g Shea butter
360g Water
123 g Sodium Hydroxide (NaOH)
37g Fragrance (*optional)
45g Superfat 5% – Shea Butter
(note: solid oils make the best superfats)


Step by step process to making soap

Step 1: Add liquid oils and then add solid oils after microwaving

Step 2: Add lye solution with sodium lactate or plain Greek yogurt

Step 3: Cook in crockpot at low heat, covering half with plastic wrap

Step 4: Use the immersion blender, carefully mixing on low power for 10 second increments until it thickens

Step 5: Fully cover with both the plastic wrap and lid. Let cook for 45 minutes to 1.5 hours, checking on it every 10 minutes or so

Step 6: Check the pH level by taking a tsp of the soap and adding it to quarter cup of distilled water. Test with the pH strip and it should read 10pH.

Step 7: Once the mixture is ready, leave it to sit with the slow cooker turned off. During this time, melt down the super fat and add any essential oils and colourants you want for the final product. Once it’s finished, add the mixture to the soap in the slow cooker. Stir until it’s evenly distributed.

Step 8: Add mixture to loaf and decorate the top however you want. As the mixture cools, it begins the saponification process to turn into soap. It takes between 24-48 hours until you can unmold, cut, and cure.