As someone just setting foot into the world of soap making, you must first become aware of the multiple methods commonly used to process this type of product. The two most common are the cold and hot processes, with the former being the more popular method.
What is Hot Processed Soap?
Hot processed soap is made by combining oils and sodium hydroxide lye together and then cooking the mixture until saponification (the chemical reaction between the oils and lye that produces soap) is complete. This method can be done on the stovetop or in a crockpot/slow cooker.
Why Use Hot Processed Soap?
- Hot processing helps to accelerate the saponification process, meaning that your soap will be ready to use sooner than if you used the cold process method.
- Hot processing also results in a more mild and gentle soap on the skin, as some of the harsher chemicals in raw ingredients are broken down during the heating process.
- Soaps made via a hot process tend to retain more of their natural glycerin content, a humectant that helps attract and retain moisture in the skin.
- The heating process also allows for greater control over the final product, as you can adjust the temperature to achieve specific results. Unlike cold processed soaps, their fragrance and color are customizable and can be altered even after saponification.
- Finally, hot processed soaps tend to have a longer shelf life than their cold process counterparts due to the fact that the saponification process is complete, and thus there is no risk of bacterial growth.
Bottom Line
Hot processed soap has some potential benefits that make it worth considering for your next batch. From a shorter saponification time to longer shelf life, this method offers many advantages that might just be perfect for your needs.