Easy recipe and instructions for making pure white goat milk soap. Includes guidance on temperatures, equipment, and ingredients.
When you make goats 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 goats 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 goats 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.
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 colour, and they’re low to avoid any strange crumbly messes. The lye-water 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 both space in your freezer and refrigerator for this recipe too.
Goats Milk Soap Recipe
Makes 8 bars
For full information on soap making safety and equipment please head over here. It’s important to read it before trying to make soap the first time.
Lye Water
109g / 3.8 oz Sodium hydroxide (also called lye or caustic soda)
100g / 3.5 oz Distilled water in a heat-proof jug
100g / 3.5 oz Goats milk
Solid Oils
200g / 7.05 oz Refined coconut oil
150g / 5.29 oz Shea butter
Liquid Oils
400g / 14.11 oz Olive oil pomace (it’s lighter in color than virgin olive oil)
50g / 1.76 oz Castor oil
Add at Trace
8 drops Grapefruit seed extract (optional)
Special Equipment needed
Digital thermometer
Digital kitchen scale
Stick (immersion) blender
Silicone soap mold
Step 1: Freeze the Goats Milk
Pour the goats milk into an ice cube tray and freeze.
Step 2: Make the Lye solution
Put on your rubber gloves and eye protection 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).
Step 3: Add the Milk Cubes
When the lye-water 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)
Step 4: Heat 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.
Step 5: Add the Liquid Oils
When the solid oils are melted, take the pan off the heat and pour in the liquid oils. 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).
Step 5: Mixing
When the lye-liquid is fully melted and the oils are the right temperature, pour the lye solution into the oils. Immerse a stick 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.
Step 6: Add the Antioxidant
When the soap batter has thickened to the consistency of warm custard, stir in the optional drops of grapefruit seed extract. It works as an anti-oxidant and helps prolong the shelf-life of your bars of soap. It’s not a preservative but rather an agent that helps stop oils from going rancid.
Step 7: Mold and Cool
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.
Step 8: Cut & Cure
Take the 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.
When cut, leave the bars someplace airy and out of direct sunlight to cure for 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 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.
Vashti says
Hi Tanya, I’m planning to try your recipe, but I’m just wondering – does it matter if I use semi-skimmed goats’ milk? Is the milk’s fat content important?
lovelygreens says
The more fat, the higher chance of the soap scorching from heat but if you make sure to keep the temperatures low, you’ll be fine.
mo says
what’s the grapefruit seed extract for? why do we need to add that?
lovelygreens says
It’s optional, but it helps free-floating oils (your superfat) from going rancid over time.
Allison says
How much fragrance oil would you use for this recipe? would it be 3 teaspoons?
lovelygreens says
It depends on the essential oil. There’s further information in this piece: https://lovelygreens.com/make-soap-with-essential-oils/
Alison Cuthbert says
Hi Tanya,
Thanks for sharing your recipes. I have just started making soap.
For the smaller 6 soap recipes, can you typically double a recipe?
Alison
lovelygreens says
Absolutely 🙂
Robin says
Hi, I may have missed it, where do you get your goats milk, what brand do you use? Thanks so much and I love your website.
lovelygreens says
You can use any goats milk. I get my own from a farmer friend here on the Isle of Man.
Ava says
This website is making want to make soaps. This is really the best for easy to follow instructions. Is there any ingredient that I can use to replace the shea butter? Shea butter actually dries my skin. Thank you for the advice.
lovelygreens says
Most of the shea butter in this recipe is transformed into soap so it should not have the same effect on your skin. As for swapping out, that’s not an easy thing to do without recalculating the entire recipe. Soap making is chemistry and the sodium hydroxide amount is specifically for the oils, and amounts of those oils, in a recipe.
Cathy says
Hello, please can you tell me the use by date for this soap? Surely it’s longer than the milks use by date? Thanks, Cathy
lovelygreens says
Yes, it is longer than the milk’s use-by date. It has a maximum shelf-life of one year OR the closest best-by date of the other ingredients you used.
Stephania says
hi ! Thank you so much for you soap-lovin’ heart and blog! It has been a great friend to me during my beginning stages! I plan on trying this recipe out. I really am looking forward to the white color; however, I have extra virgin olive oil,, will this effect the nice white? If so, can I add bentonite clay?
lovelygreens says
It may be a little yellow at first but should lighten over time. Make it first before considering other options.
Grace says
Hello, love your recipes! I was wondering if you could replace the coconut oil with anything else? I’m allergic to coconut and I’m hard pressed to find melt and pour, per made soaps, and soap recipes without it.
Thank you for your help!
lovelygreens says
You can replace coconut for babassu oil but it has a different saponification value so you’ll need to update the lye amount. Here’s more on how you would do that: https://lovelygreens.com/change-customize-soap-recipe/
Amanda says
Hi Tanya,
Absolutely love making your soaps, they are absolutely amazing, was just wondering with your goat milk soaps, how do you go about adding some essential oils and colour, do I need to modify the recipe at all? Or can I just add the recommended % of essential oils to the recipe? Or in the case of colour as much as I would like?
Thank you so much!
lovelygreens says
Hi Amanda and thanks! You can add essential oil and/or colour in the trace stage. I have information on how much essential oil you can use over here: https://lovelygreens.com/make-soap-with-essential-oils/
Orsolya says
Dear Tanya!
What’s use Sodium hidroxide or Natrium hidroxide? And you wrote water , natural water or destilled water? Many many thanks 🙂
lovelygreens says
Hi Orsolya, it’s best to work with distilled water or rain water if possible. Tap water with chlorine or minerals can affect the soap’s lather and amount of soap scum it produces. I’m not sure about what you’re asking in regards to Sodium hydroxide.
Vicki Farley says
Hi Tanya,
I’ve given a few bars of my goat’s milk soap away as gifts and my mother-in-law is saying that the soap is turning her white wash clothes a bit orange. Could goat’s milk soap do that? Or did I do something wrong when making it?
Thank you for your help!
Vicki
lovelygreens says
It should not be turning anything orange. Also, this recipe is not a good one for laundry soap and shouldn’t really be used as such. It’s superfatted — meaning extra oil for your skin. Extra oil does not bode well for clothing though.
Vicki Farley says
I created bar soap for skin. She uses a wash cloth to wash her face. She said the soap turned her wash cloth orange.
lovelygreens says
Something is wrong in this scenario but it doesn’t have anything to do with the soap recipe.
Vicki Farley says
Definitely! I’m only using it as face/body bar soap. I’m guessing my mother-in-law is using a white washcloth when washing her face. Possibly she’s laundering her wash clothes in something that is causing a reaction with the goat’s milk soap? I believe she always uses white vinegar in her rinse cycle to soften her laundry. Maybe that is still on the washcloth when she uses the Goat’s Milk Soap to wash her face? What are your thoughts on that?
Thanks,
Vicki
lovelygreens says
I’m not really sure but what you should ask her to do is to use a purpose made laundry soap for laundry. That way there’s no question 🙂
Johnray says
Hi Tanya, your website has really made me want to start and make soaps! I have ordered my mould online today. However, I am wondering if there are any other ways to prolong the “expiry” of the soap other than adding GSE. And any suggestions to stamping the soaps?
lovelygreens says
There’s no way to prolong the best-by date of soap, I’m afraid. GSE and other antioxidants only help free-floating oils in the soap from going rancid too early. The legal shelf-life of your soap will always be the closest expiration date of any of the raw materials you use. If the coconut oil you use goes off next week then your expiration date for soap sold to customers is also next week. Saying that, I’ve found that the best by date of many oils, especially solid oils and butters, is longer than on the packaging. If you’re making soap just for yourself then you don’t need to be as strict about an expiration.
Vicki Farley says
Hi Tanya!
I just made a batch of your Natural Goat Milk soap and I’m not sure why but when I introduced the lye/milk (74 degree) to the oils (87 degrees), the batch gave off an ammonia smell. Is that normal?
Thanks,
Vicki
lovelygreens says
Milk mixed with lye can have an odd scent at first. How do your bars smell now is the more important question. If fine, then I wouldn’t worry 🙂
Vicki says
I just pulled it out of the refrigerator and I think I’m smelling just a hint of goat’s milk.
Thank you Tanya! I can’t wait to try this soap…..in 4 weeks. 🙂
lovelygreens says
Oh good, I’m glad 🙂
Stephen says
Dear Tanya,
I’m just getting into soap making, and I intend to start with your goats milk recipe, which I’ll stick to rigidly. I’ll let you know how it turns out. However, I just wanted your opinion, on the assumption that it works out well, as my intention is to focus in future on producing herbal soaps. Do you think that adding herbal oil and a corresponding colouring to your recipe (say sage oil and/or chopped sage and a little green french clay) would work, or is there a potential problem that I need to know about?
I think your website is really good, by the way, and your videos are great!
Best wishes,
Stephen
lovelygreens says
Thanks Stephen and yes, to answer your question. French green clay adds more of a tan colour though in my experience. I know some sources say that it is green but just keep that in mind if you use it and it doesn’t turn out the color you were expecting. There’s some more natural color ideas over here: https://lovelygreens.com/how-to-naturally-color-handmade-soap/
Vicki Farley says
Hi Tanya!
I just love your website and how you explain everything. This is my first try at goats milk soap. I got my silicon ice trays and opened my very first bottle of goats milk and when I started pouring the milk into a container to weigh it before putting it in the ice trays, I noticed that there were some curds in the milk. 🙁 I checked the date and it expires next week, so it should be okay. Is that normal? Or should I ditch the milk and go get a fresh bottle?
lovelygreens says
Milk that expires next week is still in date 🙂 Just strain the curds out and freeze the liquid. There’s a chance that the curds might scorch and turn your soap brown but if that does happen, the soap is still fine to use.
Mischief says
Would it work if I were to ad lemon or orange zest to it and ad a citrus touch? Would that change the recipe? Also, If I were to emit the grapeseed oil, how long would it be good for? Could I use sunflower oil instead of Coconut oil? Lastly, is this recipe good for eczema and/or dry and irritated skin?
Sorry for all the questions! It sounds like a very good recipe!
lovelygreens says
Unless you’re an experienced soap maker I don’t recommend changing anything in a soap recipe. It’s more complicated than just taking an oil out and replacing it with another. However, you could add the citrus zest if you wish — half a teaspoon will do for this recipe. It won’t add scent but will add specks of colour.
Mary Jo Thurber says
I made the Goat Milk Soap recipe today and it went exactly as you described. Thank you for this recipe and your detailed instructions. The soap looks beautiful and the whole process was very satisfying. I made soap 20 years ago and it did not go as smoothly as this recipe did. I appreciate Lovely Greens website, a true gem!
Sushma says
Hi Tanya ,
Thanks for sharing the recipe.
Can I use cold pressed coconut oil in the place of refined coconut oil?
Thanks
Sushma
lovelygreens says
You could but your recipe would be more expensive and might have a faint coconut scent.
Katrina Lomax says
Hi, what does it mean if my soap was crumbly? Also can I use all goats milk or must I use hall and hall (water/goats milk)?
lovelygreens says
Crumbly soap can be an issue when making soap with sugars like milk, honey, or actual sugar. It’s not the sugars themselves though that cause the issue — it’s the extra heat they generate. It can cause the centers of the soap to gel and the outer edges to not go through gel. In other types of soap it’s just a color difference that happens in this case. In sugar soaps it can sometimes cause crumbliness. Avoid this by soaping at lower temperatures and either ensuring the bars go through gel completely (insulate or gently oven process) or don’t go through it at all (refrigerate). As for the amount of milk — yes you can use all milk. Your chances of soap coming out crumbly or discoloured go up though if you do not take precautions.
Kathleen says
Hi Katrina, I make goats milk without using water and haven’t had any issues.
Joanne Duguay says
Hi Tanya,
I am new to your website and I just love it. I tried your goat milk receipe today and I hope it will turn out right. My only worry is that the soap didn’t thickend as much as it used to do to reach trace with my other recipe.
I was wondering if goat milk powder could be an alternative to the liquid one. Did you ever try it?
Thanks for your help and time 🙂
Joanne
Bogdana says
Hi Tanya, I’m interested in making goat milk and also goat whey soap so my question is- could it be done only with milk or whey without any water? Also, should I use fresh or pasteurized milk- is there any difference, because I’d rather use fresh.
Greetings
lovelygreens says
The more milk you use, the higher chance of it scorching. Saying that, give it a go and see how the soap looks, smells, and lathers afterwards. As for fresh or pastueurized — I don’t think it really matters.
Lesley Ann Johnson says
Hi! I am wondering if there is a way to color this soap a light gray. I love the white, but I am worried the white won’t be as white as I need it to be. So my next option is a light gray. Do you have any ideas?
Thank you!
lovelygreens says
Hi Lesley, I’d recommend you try making it first. This recipe will give you pure white bars if you follow the instructions. If you’d still like to tint it a light grey you can use a little activated charcoal.
Lesley Ann Johnson says
I was wondering if it is possible to color this soap to a light gray? If so, what would be the best colorant to use as well as maybe add to the soothing properties that this soap has. I love the white, but I’m concerned that it won’t be as white as I was hoping for. So my next alternative is a light gray.
Thank you so much!
Sarah says
Hi – how much soap does this recipe make – just looking at possible mould sizes?
Many thanks – and looking forward to trying this! xx
lovelygreens says
It’s a 800g batch, so about 8 100g bars
Bev says
Love this easy to follow instructions, and the comments have cleared up many questions. Is there a print option for the goats milk soap? Blessings to you and your family.
Bev
Tara Penske says
Hi Tanya!
I am a always so impressed by your recipes, ideas and farming information. Thank you for sharing all your ideas, recipes and tips. I would like to double this recipe..is this possible without any major issues? Do you have any thoughts or tips on doing this successfully? Thank you so much for all you do for the natural living and soaping community! Tara Penske-Amadeus Aromatherapy
lovelygreens says
You can absolutely double or triple it, not problem. Have fun soaping and let me know how you get on 🙂
Sharon Hartis says
Is this recipe compatible for hot process soap making? I am new to soap making. I tried your recipe and love the way it feels, but I don’t really have the time to wait 4 – 6 weeks since we are getting ready for farmer’s markets.
lovelygreens says
I wouldn’t recommend it for hot process — the soap will turn brown with the extra heat.
Nicole says
Love this! Can I leave out the anti-oxidant if I don’t have any on hand? If I do leave out the Grapefruit Seed Extract, do I have to change the recipe? (Also thinking of throwing in the honey at the end).
lovelygreens says
Yes of course — the antioxidant is optional. As for honey, it can heat the soap up due to its sugars. To keep your soap light coloured make sure to refrigerate it after pouring it into the mould. Happy soaping 🙂
Noah says
I made soap twice with this recipe and it came out perfect both times. I appreciate the detailed instructions that provide everything needed to make this soap. I used almond fragrance for the first batch and lavender/lemon for the second.
lovelygreens says
Really pleased you enjoyed the recipe so much that you made it twice 🙂 Thanks for sharing your experience Noah
mirta torres says
hi Tanya , i love your site, can i avoid to put the soap in de fridge? what’s the difference?
lovelygreens says
Thanks so much Mirta! You don’t have to refigerate your soap but beware that it might not turn out as creamy white as in the photos. It might even get a gel circle in the centre. Not a biggie as far as functionality (it’s still very usable soap), it just won’t look as nice if it discolours.
arefa says
Hi Tanya I love the way go around explaining things. I am a big fan of urs. I had one question though, can I used cow or buffalo’s milk instead of goat’s milk.
thanks
lovelygreens says
Of course you can 🙂 Buffalo milk soap — interesting!
carolyn says
Hi there, I love this site. Have just made my first batch of lemongrass soap and it has turned out quite brittle and crumbly. Am I able to reheat and repour? Thanks.
lovelygreens says
Brittle and crumbly doesn’t sound right — check to see if the soaps are lye-heavy (with a PH test) before rebatching. You might have mis-measured the ingredients. It’s happened to us all!
Otilia says
I’m following your posts and thank you for sharing with us what you create. I love soap with goat milk and I think I will try as soon as possible this way to make it. I have tried several times to put the goat milk to the trace, up to a maximum half of the amount of liquid, and the result is quite pleasing. The advantage of this method is that milk should not be frozen, but just brought to room temperature. Thank you again.
lovelygreens says
You’re welcome Otilla 🙂
Terri Sidell says
Tanya, Love your instructions on how to make soap. Do you have a receipe to make Goats Milk soap without lye?
lovelygreens says
You can’t make soap without Lye Terri — even the ‘Melt and Pour’ soap you can buy pre-made is created using lye.
Nichole says
Best recipie I’ve seen!! Thanks for sharing!
-HappyWifeyHappyLifey.com
🙂
lovelygreens says
That’s so kind of you to say 🙂 Thanks Nichole
leatrice gulbransen says
Thanks so much for the recipe ! My first time to your site. Very detailed, easy to follow directions. You don’t get all scientific with us. I used to make soap. Back in the hippie days. LOL ! My how things have changed ! This will be my first time trying again. The thing I want the most is lather. Have you any suggestions to make that happen ? Thanks again.
lovelygreens says
Hi Leatrice 🙂 The coconut oil and castor oil in the recipe see to it that you’ll get a great lather. Welcome to my site and happy soaping!
Mary says
I have been making goats milk soap for years and it’s always the light brown color. I am thrilled to give this recipe a try. Thank you.
lovelygreens says
Letting the ice cubes melt into lukewarm lye water helps a lot! Best of luck with your next batch Mary 🙂
Karen Rink says
Great looking soap mold! Where can I buy one?
lovelygreens says
There’s a link in the article to where you can get your own!
Joyce Blake says
Hi Tanya, I tried making Goats milk soap a few days ago, and it turned to mush, none of the other recipes say to put it in the freeer, I have sodium lactate, i think that is what it is called, should I use that instead of putting in the fridge. I really enjoy your videos, and all that you do. I just want my cold process soap to turn out. LoL any advice is good.
Thanks
Joyce
lovelygreens says
You don’t put your soap in the freezer Joyce — you put it in the fridge to cool. If your soap turned to mush it could be a couple of things: the recipe isn’t good (check a recipe’s values in the SoapCalc before using it), you haven’t waited long enough before cutting it (don’t unmould for 3-4 days with softer soaps), or your soap false-traced meaning the oils cooled and hardened in the pan before they could be bonded with lye. I suggest you use my recipe instead and follow all the steps to the T. You mention substituting ingredients in a previous recipe in a Facebook comment — please don’t do that. It’s the surest way to fail when making soap.