We love our Dr. Bronner’s liquid castile soap, but for those who want to go the extra step and prefer to make this soap for themselves, we provide three instructional guides below, they are very similar so you use the one that resonates best with you. Liquid castile soap is key base ingredient in so many homemade products from shower washes, hand soaps,
shampoos, house cleaners.

This is a good afternoon project that will take some time, but is fairly straight forward and once you do it,
you will have a good supply to fill your other needs.  It does involve handling volatile materials so protective eye wear and rubber gloves are a required, and special attention to the sequencing of activities.

What you’ll need is:


  • Crock pot (6 quart or larger) or slow cooker (for soap making only, not for food)
  • Immersion blender
  • digital scale that can measure both ounces and grams
  • Gloves
  • Goggles
  • Containers to store your soap (old apple cider glass jugs work great)


  • Potassium hydroxide (not to be confused with sodium hydroxide which is used for solid soap lye)
  • Oils (traditionally use 100% olive oil, but can mix 60% olive oil / 40% coconut oil
  • Distilled water

How To Make DIY Liquid Castile Soap

I made 6 gallons of liquid soap so you don’t have to. You know about Dr. Bronner’s Liquid Castile Soap. It’s been an all-in-one, all-natural cleaning solution for generations of hippies, greenies and all manner of natural living advocates. Dr. Bronner’s is great, but at $60 a gallon, it’s not the cheapest cleaner out there.

How to Make Liquid Castile Soap

Castile soap, also known as vegetable soap, is soap that contains no animal fats. It is made primarily with olive oil but it can also contain other plant oils. Making liquid castile soap at home can save you money and give you the peace of…


This particular recipe is a base process to start making your own liquid castile soap from home. It is repeated in several articles, books, and internet sites as being “lye-free” However, please keep in mind that all soap has had some form of lye in it at one point or another (if you can find a recipe that is completely “lye-free” during the WHOLE process we would like to know).