Home > Breastfeeding > Mother’s Milk Soap Recipe

Mother’s Milk Soap Recipe

Discovered and copied over from HERE. Makes wonderful soap! I currently offer making Mothering Soap for $50 for anyone looking to use up some of their frozen milk stashed away. It’s a wonderful keepsake to have for remembering those breastfeeding days that seem to go by too fast.

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Mother’s Milk Soap Recipe
32 (4-ounce) bars

Recipe:

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
Scale
Blender

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

Procedure
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!

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  1. August 22, 2010 at 4:06 pm

    Thanks for this recipe. I’m very excited to try it out. I just started making soap over the last year and am always looking for new and exicting things to try!

    I do have a question. I have a small container to store the soap (it usually makes for 6-8 bars) is it possible to scale down the recipe? Does that work with soap?

    Thanks!

    • August 22, 2010 at 6:49 pm

      I am not sure! I have made this (with goat’s milk the one time), and put it all in 3 different containers. One was even just a small pot, because we were in a hurry and realized we had too much leftover. It turned out fine, though if I recall, it did take a little longer to cure.

      Couldn’t hurt to try, since it will be less ingredients that will go to waste.

      Let me know if you try it!
      Nicole

  2. Kristi
    December 1, 2010 at 8:53 pm

    Do you know how long the soap has to site before it can be used? I have read a couple different recipes that say the soap has to site after being cut for about 4 weeks for the lye to neutralize. It that the same with this soap?

    • December 1, 2010 at 8:54 pm

      I’ve waited a few days, and it was totally fine. The longer it cures, the harder it gets, but I never had any issue with the lye.

  3. Kristi
    December 1, 2010 at 9:00 pm

    Do you know how long the soap has to site before it can be used? I have read a couple different recipes that say the soap has to site after being cut for about 4 weeks for the lye to neutralize. It that the same with this soap? And what type of blender should I use? A stick blender, kitchen blender I make smoothies with, or the blender I make bread with?

  4. Kristi
    December 1, 2010 at 9:04 pm

    I am sorry for the double post I did not realize you had already responded to me and I also forgot to add in another question.

    Also why must I poor the ingredients into a clean pan after the first blending? I do not really understand that part. So I blend them, then poor off into a clean pan and then put them back into the blender to add the essential oils?

    • December 1, 2010 at 9:09 pm

      Use a kitchen blender, like the one for smoothies.

      You have to dump it all out and blend a second time, because there’s so much, that it takes about 3 blenderfuls to do the whole batch. So, you have to dump the blended stuff into a clean place. Then when it’s all done, blend all that again.

  5. Kristi
    December 1, 2010 at 9:22 pm

    Thank you so much 🙂 I am going to make my soap tomorrow and was really confused about. So just to make sure I understand, so I will fill the blender about 3/4 then blend and poor off into a clean pan. Then I repeat this until all of the soap has been blended. Then I do that whole process again and add in the essential oils while it is blending again?

    wouldn’t it be easier to use a stick blender and a big pot?

    • December 1, 2010 at 10:11 pm

      “So just to make sure I understand, so I will fill the blender about 3/4 then blend and poor off into a clean pan. Then I repeat this until all of the soap has been blended. Then I do that whole process again and add in the essential oils while it is blending again? ”

      Yep, that’s what I’ve always done.

      Not sure about the stick blender. I don’t know if it would work as well? I’m not so well versed on the whys and hows of soap making, so have just followed this recipe above.

  6. Kristi
    December 1, 2010 at 9:39 pm

    Also I have one more question. Do you think that the milk should be frozen? I have watched a video on youtube.com on making breast milk soap. Theirs was thawed but in the end they said they should have left it frozen. Ohhh and do you think it would be a big deal if I just added the essential oils to the oils on the burner?

    Thank you so much for your help. I just want to make sure I make this right.

    • December 1, 2010 at 10:13 pm

      I don’t think it matters. I’ve always used unthawed milk with no issue. Maybe they were saying that because the lye heats it up so fast? Just keep lots of ice in the sink and watch it. It’s really not that hard.

      Good luck!

  7. Jeni
    July 19, 2012 at 11:00 pm

    Over the years since I was first told about this recipe, I’ve made multiple batches of soap and we’ve been using it and benefiting from it ever since then. I’ve made soap for a long time, but this is by far one of the best recipes that I’ve ever used with the most amazing results. I’m holding on to a few bars from each batch that I’ve made so that I can give them to my daughter when she has her own baby.

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