I've been making melt and pour soaps for a few years now and I've finally worked up the courage to try out cold process. I ordered ingredients last night, and I've been watching a lot of videos and reading articles, but I have questions.
1. Can anybody recommend a good video, website, or even a book that really gets into the details of cold process. Like the details of the math. I understand the basic gist of mixing oils and lye, but I don't really understand the math of it. I want to be able to figure out how much essential oil I can add and how much oil I can use to mix colors without compromising the soap. Plus I want to make my own recipes with ingredients that I want (eventually)
What information exactly are you really looking for? Each oil/butter has its own saponification value. That can be found on most soap calculators. If you want a spreadsheet, there's one on here somewhere, but I don't recall where as it was a few years ago. There are some on the web, but you will have to be careful of which site you use. Best to use SMF, soapcalc, or Soapee.com, as these are tried and true numbers. And there is a thread with beginner recipe suggestions that we have given. Start with one and go from there.
You take part of the oil amount to mix with colorants. You don't add additional oil. I don't even do that, I just mix the mica straight into the batter.
Essential oil amounts that are safe to use will be located on the website of the place you order it from. Using a better soap calculator gives you a default for fragrance/essential oils. Use that until you can find the information.
2. Could somebody give me tips for this recipe I want to use? I used brambleberry's
lye calculator and their basic rule of 30,30,30,10 for oils and additives, but I want to use rice bran oil instead of coconut oil and I want to make a small batch since it will be my first attempt. Anyways the recipe I came up with is:
A
Solid soap, measured in
Ounces with superfat of
5%.
LYE & LIQUID | AMOUNT |
---|
Lye (Sodium Hydroxide) | 3.76 oz |
Ounces of liquid | 8.40 oz |
Total | 12.16 oz |
OIL & FATS | AMOUNT | % |
---|
Palm Oil | 8.00 oz | 30.08% |
Rice Bran Oil | 8.00 oz | 30.08% |
Coconut Oil | 8.00 oz | 30.08% |
Shea Butter | 2.60 oz | 9.77% |
Total | 26.60 oz | 100.00 % |
TOTALS | AMOUNT |
---|
Lye & Liquid | 12.16 oz |
Oils & Fats | 26.60 oz |
TOTAL BATCH YIELD | 38.76 oz |
Is this okay? Does anybody have a recipe with these ingredients I could follow instead until I figure this all out better? Should I try this recipe, but a smaller amount? Any advice is greatly appreciated!