Soap Master Batch Oils #8 & #9

I have found what works the best in a soap recipe is to have 50-60% “hard” oils. Coconut & Palm (or Tallow/Lard) are in that category, as well as all butters (even though some are harder than others). I like using 25% Coconut oil and 25% Palm (a mix of Palm Kernel Flakes & Palm oil).

I typically use 10% butters: 5% Cocoa Butter & 5% Shea Butter, but have some wonderful Avocado butter I wanted to include, so have used 4% of each, increasing my butter total to 12%. And I always include 5% Castor oil for lather (above 5% causes acceleration).

The other percentages can be made up of any oils of your choosing – many people love using Olive Oil. I don’t like going above 10% Olive oil, as it makes it harder to get true colors in the soap. Plus Olive oil makes an extremely soft bar of soap and many people find the lather lacking and the bar sticky (100% Olive oil or Castile soap takes 6 months to 1 year to cure).


There are so many oils that have wonderful skin loving properties, that I like to use a little of both. I have been taken to task for such diversity, and of course the less variety of oils you use, the less you have to buy and keep track of!

Here’s my Master Batch Oils #8:

Recipe: 600 oz oils/37.5 lb (makes 880 oz/ 55 lbs of soap):
5%     Apricot Kernel Oil            30 oz       850 grams
4%     Avocado Butter                 24 oz       680 grams
5%     Avocado Oil                       30 oz       850 grams
5%     Castor Oil                           30 oz       850 grams
4%     Cocoa Butter (Golden)     24 oz       680 grams
25%   Coconut Oil                      150 oz    4252 grams
5%     Hazelnut Oil                       30 oz      850 grams
8%     Olive Oil                              48 oz    1361 grams
8%     Palm Kernel Flakes           48 oz    1361 grams
17%   Palm Oil                            102 oz    2892 grams
5%     Rice Bran Oil                      30 oz      850 grams
4%     Shea Butter (Organic)       24 oz     680 grams
5%     Sunflower Seed Oil            30 oz     850 grams
100% Oils                                     600 oz 17,006 grams

After measuring and heating the oils and butters, they go into a bucket and I stir thoroughly to blend together:


I then separate into 1 gallon jugs, cool, and freeze to stop the aging of the oils or refrigerate to slow it down:


I ran this batch over a dozen times through a lye calculator, adjusting the oil totals for a variety of sized soap batches. (Using the Bramble Berry calculator, I select the adjust batch button to change the oil totals.) Here are some examples, with just the information I need to make a batch of soap:

Master Batch #8 oils: 70 oz Oils (Makes 100 oz/6.25 lb soap)
MB Oils: 70 oz/ 1984 grams
NaOH/Lye 5% SF: 9.97 oz / 283 grams
Distilled Water: (3.1 oz disc; 13.5% disc): 20 oz / 567 grams
Sodium Lactate (1%): 20 grams (in Lye water at 130 degrees)
Kaolin Clay (1%): 20 grams (in oils)
Extract (1%): 20 grams (in oils – can add at trace)
(2% 40 grams; 3% 60 grams)

Master batch #8 oils: 28 oz Oils (Makes 40 oz soap)
MB Oils: 28 oz/ 794 grams
NaOH/ Lye 5% SF: 3.99 oz / 113 grams
Distilled Water: (1.24 oz disc; 13.3% disc): 8 oz / 227 grams
Sodium Lactate (1%): 8 grams (in Lye water at 130 degrees)
Kaolin Clay (1%): 8 grams (in oils)
Extract (1%): 8 grams (in oils – can add at trace)
(2% 16 grams; 3% 24 grams)

I even adjust the super fat in the Lye Calculator for specialty soap like facial soap:

Master batch #8 oils: 44 oz Oils (Makes 62 oz soap) 8% SF
MB Oils: 44 oz/ 1247 grams
NaOH/ Lye 8% SF: 6.07 oz / 172 grams
Distilled Water: (2.52 oz disc; 17.35% disc): 12 oz / 340 grams
Sodium Lactate (1%): 12 grams (in Lye water at 130 degrees)
Kaolin Clay (1%): 12 grams (in oils)
Extract (1%): 12 grams (in oils – can add at trace)
(2% 24 grams; 3% 36 grams)


For Additional Resources – click on the links below:

Soap Recipes:
Master Batch #7 oils
Master Batch #6 oils
Master Batch #5 oils
Master Batch #4 oils (with information on skin loving properties of oils)
Master Batch #3 oils

Shampoo Recipes:
Shampoo Master Batch Oils #2 – new and improved!
Shampoo Master Batch Oils #1

Salt Bar Recipes:
Salt Master Batch Oils #2 (“Everything But the Kitchen Sink”)
Salt Master Batch Oils #1

Soap Master Batch #9 oils: I liked the soap MB #8 recipe so much and had a supply of all the wonderful oils & butters, that I made the same batch again when I ran out of MB #8.





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