Are you superfatting? If not then no need for preservatives.
Are you superfatting? If not then no need for preservatives.
Edited, as I thought I was responding to a different thread... that's what I get for having 20 tabs of B & B open at the same time!
Yes, 5% SF using shea butter.
Edit: Edited, as I thought I was responding to a different thread... that's what I get for having 20 tabs of B & B open at the same time!
Equal parts, 0.1 or 0.2% each of citric acid and BHT. Sodium citrate is easier, as you don't have to add extra hydroxide to account for the citric acid (yes, it is neutralized).
The lard WILL go rancid without the preservatives, I found that out the hard way -- have plenty of rancid soap as most of my early batches went "off", usually not bad enough to toss, but I won't give them away.
Long sleeves, safety glasses, gloves -- accidents happen and lye burns are nasty.
I use 5% superfat with shaving soap, I suspect much lower than 3% is going to leave your face rather tight. You could use petroleum jelly I suppose, but I prefer shea and cocoa butter.
Saponified fats can go rancid too, sadly, it's not just lipids that oxidize. Dreaded orange spots, aka DOS.
Yeah, we'll be using it as bath/shower soap for a family of four, so we'll get through it. Plus we can give a ton of it away to the neighbors. It'll all find good use.Weight of oils.
As far as safety equipment goes, far better safe than sorry!
Have fun, the only drawback to making your own soap is ending up with dozens of pucks of it.
Forgot to add that I also use 0.5% tetrasodium EDTA in every soap as well, mainly because I have very hard water and the EDTA reduces the soap scum a little and gives me better lather. Helps with rancidity, but isn't enough on it's own.
Use distilled water for soapmaking, too -- my well water has iron in it, will greatly increase the propensity for rancidity chelated or not.