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Mother's Milk Soap

post #1 of 6
Thread Starter 

This was a wonderful idea I was recently introduce to for soap for baby (in my opinion) for those mothers who breastfeed and maybe already make their own soap anyways. I wish I had heard of it when I was still breastfeeding. But I will definitly do this with #2


This recipe is from


I am only copying and pasting the exact recipe here. The website has many more comments and discussion on it.



Mothers Milk Soap Recipe
32 (4-ounce) bars


3 lbs. vegetable shortening
17 ounces dark olive oil
18 ounces Safflower oil
6 cups thawed breast milk
(you can use any amount of breast milk you like and substitute the rest,
just make sure your total fluid volume reaches 6 cups).

12 ounces pure sodium hydroxide (lye - Red Devil brand works)
1 ounce Borax
2 TLBS honey
1 ounce Essential oil - optional
Ice Cubes


Tool List:
Stainless steel pans
Wooden or stainless steel spoons
Newspaper to cover counter tops
Candy thermometer
Measuring cup

***Wear Gloves and protective eye-wear when making soap...lye burns!!
****Use only stainless steel pans for making soap - DO NOT use aluminum!!



Melt the veg. shortening in a sauce pan (about 8 quart size)and add the oils. Bring temp up slowly until the shortening is all melted. Don't over heat or scorch the oils.

Plug your kitchen sink. Fill half way with water and add about 3 dozen ice cubes.

Put thawed cold breast milk in a sauce pan (about 3 quart size). Place the sauce pan into the water. You *must* keep the milk cool when you add the lye to it or the lye will burn it and make it unusable, not to mention real stinky!

Slowly stir in the sodium hydroxide (lye) stirring constantly and occasionally circulating the outer ice water. The lye is going to heat the milk up as you stir it in. Avoid breathing the fumes by working in a well ventilated area.

Adding the lye should take at least 5 minutes, any faster and you will burnout your milk. If you accidentally splash any on yourself, rinse immediately!

Once combined, continue to stir the milk/lye mixture for just a few more minutes (3) and then remove from the water bath and set aside. You will notice that the milk/lye mixture steadily becomes yellowish in color. That is normal.

Add the honey and borax to your melted oil which should still be warm but not hot (115 degrees or so).

Now, slowly and carefully pour the milk/lye mixture into the pan of oil. Stir constantly until it is all mixed together.

This mixture must now be whipped in a blender (2/3's full at a time for safety sake). Run the blender (with the lid on) at whip speed for 60 seconds each time. Pour off into a clean pan.

Repeat the blender process a second time. This is when you will add your essential oils.

Once the mixture has been blended twice, it will be ready to pour into a mold where it will saponify and be ready to cut after 24 hours.

**Make sure to set a few bars secretly aside for that someday when it could make a touching "Treasured Memory Gift" maybe when your child is all grown up. The soap will never go rancid (no matter what you may have read elsewhere), it will only improve with age. Mothering Soap has the unique potential of becoming something extra, special as the years roll by. But that's just this mothers thought!

post #2 of 6

Could this be made w/out the Borax?

post #3 of 6
Thread Starter 
Originally Posted by Amanda Goldman:

Could this be made w/out the Borax?


yes, def it could. I never make soap with borax in it. many people do because it makes it lather really well, but my soap lathers great without it so I really don't feel it's necessary and it is a toxin, so especially if you are using this on baby.


I also thought i might add that you could use any oils to make mothers milk soap, this is just one recipe.


here's some really good sites and info if you are interesting in making your own bar soap


Some Helpful Beginners Guide Soap Sites
If you know a site that could help others please post or let me know so I can add it to the list- Thanks!

Making Soap - How Do I? Begin By...

Making Homemade Soap - Beginners Guide to Making Homemade Soap

Soap Making Basics - Getting Started Making Hand Made Soap

Soapmaking - USA Today Article


Remember to ALWAYS mix lye and any water based liquid outside in a well ventilated area slowly, using rubber gloves and goggles and never pour the water/liquid into lye, always pour lye into the water/liquid.

Please check lye calculations prior to use, some lye calculator links have been provided for your convienence:

New and Improved Soap Calc 

Bramble Berry Lye Calculator | Soapmaking Lye Calculators 

Lye Calculator from

post #4 of 6
Thread Starter 

here's also a reply i wrote a bit ago on cafemom in responce to some questions a mom had about making bar soap.




you don't need a recipe to make any soap really, soap recipes are just certain mixes of oils and scents/herbs that people have liked for one reason or another and shared.

To make soap all you really need is any oil, water/milk and lye.

Use a lye calculator to figure out how much of each you need per. I like this one- Bramble Berry Lye Calculator | Soapmaking Lye Calculators the best since it is the simplest. You just tell it how much of what type of oil you want to change to soap and it tells you how much liquid and lye you need to do it.

for example. for a simple castile soap. this tells you if you are using 15oz of olive oil use 2.010 (you can round to 2oz if you want, never round up, only down with soap and lye and never round out out of the superfatting amount. I do this because I don't mind superfatting.) It tells you if you want supperfatting of 5% to use 1.91oz of lye and to use 4.95oz of water/milk (again, you can round to 5oz. when rounding only do so if you have to, and my personal rule of thumb is never round outside of .05 of an ounce. I would rather add an ounce of oil here or subtract an ounce of oil there and get a closer calculation to what I can measure for then round too far off and ruin the recipe. there is some leeway, but not much with soapmaking)


Lye Calculator Results
Oil(s) Selected Amount
SV Lye
Olive Oil 15 0.1340 2.010
Totals 15   2.010
5% Superfatted Recommended Lye Amount 1.910
Ounces of water recommended 4.950

It gives you the option of super fatting amounts also, it's really up to you whether you super fat, but it's not necessary and makes the bar take longer to harden, but if you are planning on turning it liquid anyways I guess it doesn't matter. So just depends on what you want. this is what I mean by you don't need recipes with soap making, you just need to decide what oils you are using and go from there.

just make sure you follow all the normal precautions when making soap. Don't use anything aluminum. Remember to ALWAYS mix lye and any water based liquid outside in a well ventilated area slowly, using rubber gloves and goggles and never pour the liquid into lye, always pour lye into the liquid.

A simple example recipe for a basic castile soap made out of olive oil recipe would be 15oz of olive oil, 2oz of lye and 5oz of water.

For lye you will probably have to go to a hardware store, you need to get the container that says 100% lye, ever since red devil stopped making lye most stores just don't carry it anymore, except hardware stores that have it as a drain declogger.

Another ingredient you need is some sort of liquid to mix the lye solution; this can be coconut milk, goat's milk, or even water.

Fragrance is really not needed for learning, but that's up to you.

The last ingredient is oil, for your first time I suggest cheap oil in case you mess up so you aren't out major bucks and will still make good soap if the process goes right.

You also need stainless steel pots, these don't need to be fancy, but they must be stainless steel, you can usually find the three pot sets of pretty big ones for around $20-$30

you will also need a heat resistant spoon and something to make the lye solution in, I bought a $20 stainless steel percolator and just use the pot part of it for this, make sure you make the solution outside and poor the lye in painfully slow.

You will need a mold, this can really be anything, I use mini-loaf pans, and if you are making cold process and you don't have a wooden soap mold with a lid then you will need a lot of towels or a blanket to wrap around the soap in the mold to keep it from cooling off before the process is done. If your soap does go cold in the first 24 hours anyways then something was off, if you want you can try dumping it back in a pot and heating it back up and remolding to jump start the process again, but that doesn't always work, but is worth a shot.

I'm sure I left something out you might have questions about, if so just let me know and ask. Good luck and ask if you run into anything else you aren't sure about with the process.

post #5 of 6

Awesome thanks!!!

post #6 of 6

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