I love making goat milk soap, but I don’t always have time to make it. So I slip in small batches here and there to not get overwhelmed. I also love to make my own recipes based on what oils or additives that I have on hand. This cold-process soap recipe that I will give you is one of my favorites. It uses 4 different oils and if you like, you can substitute one of the oils with something similar. Just make sure that you run your oils through a soap calculator to get the proper amount of lye.
My mold for goat milk soap
Since the first year I started making soap, I have been using the same cardboard mold which makes bars shaped and sized like a lot of commercial bar soaps. When I cut the bars from this mold, I get 8 bars that weigh about 3.5-4 ounces each after drying. I have decided to make the bars slightly bigger for selling so I needed to modify my mold. This was easily done by creating a cardboard insert to place in the mold and make it slightly smaller. I now get 7 bars that are over 4 ounces each. This new size seems much more substantial and looks good in the packaging.
My favorite soap recipe simplified
Now for the recipe. Here are the ingredients first, then we will talk technique.
9.1 ounces goat milk
3.5 ounces lye
10 ounces palm oil
8 ounces coconut oil
4 ounces sunflower oil
2 ounces castor oil
essential oils as desired.
As with all goat milk soap recipes, your milk should be in a very slushy or partially frozen state to keep it from burning. A kitchen scale must be used for very accurate measurements and separate utensils should be used to keep your lye solution away from your food. Line your mold with parchment paper, or if you have cardboard like I do and you worry a bit too much, line it first with a plastic grocery bag and then parchment paper.
Carefully measure your oils and place them in a double boiler on the stove to liquefy them together. I use a large glass measuring cup inside my pot. Meanwhile, place your slushy/frozen milk in a batter bowl in the sink. Carefully measure your lye and gradually add it to the milk, stirring constantly. The milk will melt as you add the lye; make sure to keep stirring to avoid burning the sugars in the milk.
Slowly mix your hot oils and milk/lye together. This is literally mixing oil and water together so it won’t stay mixed on its own. Use a stick blender to pulse the solution until its fully blended, and starts to thicken (or trace back on itself). It will look similar to thin pudding. At this time add any essential oils that you want and mix well. Pour into your mold!
Normally I stick the soap directly into the freezer to cool it down. I haven’t had a real problem with the soap overheating because I keep the temperature as low as possible when making this recipe. Usually the soap can be pulled out of the mold within 12 hours, then cut between 24 and 36 hours. Allow to dry/cure for 4-6 weeks.
I would love to share recipes and tips with you, please let me know what you have!