Easy recipe and instructions for making pure white goat milk soap. It’s a simple and nourishing soap recipe that’s especially great for sensitive skin. Includes guidance on temperatures, equipment, and ingredients.
When you make goat milk soap, you can substitute some of the water used to make the lye solution with milk. Easier said than done though! Some years ago when I first began teaching myself how to make soap, I tried a recipe for goat milk soap. I tried and failed abysmally. The bars I cut at the end were yellowy-brown and crumbly and I couldn’t figure out what I did wrong. I’ve made a lot of soap since then and understand now that my temperatures were too hot. You’ve got to be mindful when using sugars in soap and that includes milk.
In this recipe, I’ll show you a way to make pure white goat milk soap. It’s a little trick that I’ve learned that combines a typical milk soap recipe with soaping at room temperature. The end product is a conditioning and very gentle bar of soap perfect for the most sensitive of skin.
Benefits of Goat Milk Soap
You can make perfectly lovely soap without using goat milk. But once you’ve tried goat milk soap, you’ll swear by it! It’s creamy, nourishing, and gentle and if you suffer from skin complaints then you could see an improvement. That means, if you have eczema, psoriasis, or acne, goat milk soap could help the redness, dryness, and itching.
Goat milk contains both saturated and unsaturated fats and each works to boost lather and to gently cleanse your skin. It makes soap less harsh on your skin, and the nutrients and fats in the goat milk work to clean while not stripping your skin of its natural oils. Goat milk also contains a small amount of lactic acid, which can help remove dead skin cells and reduce soap scum.
Goat milk in combination with nourishing oils in a soap’s superfat is a great option for those with sensitive skin. When other soaps and washes can feel harsh, goat milk soap can make your skin feel happy and healthy.
The Best Goat Milk to use in Soap Making
If you have access to organic, grass-fed goat milk, that’s the best milk to use in this soap recipe. Happy goats create healthy and wholesome milk! It’s filled with all of the nutrients and fats that will make great soap and can make all the difference to your recipe. One place that I get goat milk from is the local farmer’s market. Clare knows and tends all of her goats herself and most of them have names. Some years ago I even visited her goat farm to better understand how the goats were raised.
You can also source goat milk at your local supermarket, though it will be inferior to farm-purchased milk. It won’t have the same amount of fat and nutrients, and you don’t know how the goats were raised. Knowing where your ingredients come from is important to both us, and our customers, if we’re making soap for the public. Especially if that ingredient comes from an animal. If you know that the cattle that went into your tallow soap, or the bees that made the honey for your honey soap were treated well, then it brings that element of trust and wellness to your soap.
Soaping at Room Temperature
This recipe is a little different from many of the others I’ve shared in that the temperatures are low. They’re low so that the milk in the recipe doesn’t scorch and change color, and they’re low to avoid any strange crumbly messes. The lye solution will be at room temperature when we mix it into the oils, and the oils themselves will be just twenty degrees above that. I don’t usually soap at these temperatures but it needs to be done to avoid your milk soap turning brown. Oh, and you’re going to need space both in your freezer and refrigerator for this recipe too.
Natural Goat Milk Soap Recipe
- Stainless steel pan for melting the solid oils
- A large bowl for measuring the liquid oils into
Freeze the Goat Milk
- Pour the goat milk into an ice cube tray and freeze.
Make the Lye Solution
- Put on your rubber gloves and eye protection (goggles) and set yourself up in an area with good ventilation. Under a hob, on the doorstep, or outdoors is perfect. Pour the sodium hydroxide into the water and stir with a stainless steel spoon. Be careful not to breathe in the fumes. Stir until the lye is completely dissolved and then set the jug aside to cool to 100°F (38°C).
- When the lye solution has cooled, add all of the goat milk ice cubes to the jug. Allow the cubes to melt and for the lye solution to lower to room temperature — that’s between 68-72°F (20-22°C)
Melt the Solid Oils
- As soon as you add the ice cubes to the lye solution begin melting the solid oils. In a stainless steel pan, heat the coconut oil and shea butter on very low heat until just liquefied. They’ll melt quicker than you think so don’t be tempted to turn up the heat.
Add the Liquid Oils
- When the solid oils are melted, take the pan off the heat and pour in the liquid oils. If you pour the liquid oils against a spoon or spatula held just inserted in hot oils, it will help to reduce air bubbles. Pouring it straight in is the main cause of air bubbles in your bars, but pouring it against something will help stop that from happening. The oils flow down into the other oils rather than splashing in.Being already room temperature, they’ll cool the hot oils down. Stir well and keep an eye on the temperature. You want the oils to cool to 90°F (32°C).
Make the Goat Milk Soap
- When the lye solution is fully melted and the oils are at the right temperature, pour the lye solution into the oils. Again, pour the lye solution against a spoon or other implement to reduce air bubbles. Immerse a stick blender (immersion blender) into the pan and use it (turned off) to stir the contents together. Then bring the stick blender to the middle of the pan, hold it still, and pulse for a couple of seconds. Repeat the stirring and pulsing until the mixture begins to thicken. It will take a couple of minutes and the consistency will change to that of warm custard. You'll also see trails forming on the surface if you dribble some of the soap batter from the stick blender back down.
Mold and Cool the Goat Milk Soap
- Pour the soap into your mold, whether it’s the silicone soap mold, an empty paper milk carton, or something else. Now line the exposed part of the soap with plastic wrap and pop the mold into the refrigerator. Leave it there for 24 hours.
Cut and Cure the Goat Milk Soap
- Take the goat milk soap out of the refrigerator the next day but leave it inside the mold. Set it someplace on the counter and leave it there for three or four days to harden up a bit. This soap is very soft when it comes out of the mold and could break or get stuck if you try to cut it too soon.
- Use an ordinary kitchen knife to cut it into bars. Their thickness is up to you. After you cut them, leave the bars someplace airy and out of direct sunlight to cure for at least four weeks. The soap is safe to touch 48 hours after making it but it needs the extra time to allow the excess moisture to evaporate out. For full instructions on how to cure handmade soap head over here
Using your Homemade Goat Milk Soap
- The lather and feel of this handmade goat milk soap is fluffy and silky. The scent is softly milky and making the recipe just as it is will create bars ideal for sensitive and dry skin. If you’d like to scent these, you may add essential oil at the same time that you add the grapefruit seed extract. Read more about scenting soap with essential oil here — the article also provides recommendations on how much to use of each when making handmade soap.
- Once made, your soap will have a shelf-life of up to two years. Check the oil bottles that you're using though — the closest best-by date is the best-by date of your soap. That's because some of that oil is free-floating in your bars as the superfat, and it can go rancid over time.
Looking for more Soap Inspiration?
Lovely Greens shares a lot of small-batch natural soap recipes using the cold-process method. If you enjoyed this goat milk soap recipe, you’ll like these other ideas too:
- Neem Soap Recipe for Eczema
- Calendula Infused-Oil Soap Recipe for Natural Yellow Soap
- Simple Herbal Shampoo Bar Recipe
- Complete Guide to Natural Soap Additives and How they Work
- How to Make Liquid Hand Soap from Scratch