"The only thing...more expensive than education is ignorance."~Ben Franklin
"We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light." ~ Plato
"The only thing...more expensive than education is ignorance."~Ben Franklin
"We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light." ~ Plato
Carla Burke wrote:Hi Blake!
So, a little background, first. I'm a natural redhead, and have many dermal allergies and sensitivities. After too many years of breaking out in allergic dermatitis from soaps and detergents, I decided to start making my own, and found myself asking this exact question. I was determined to find the answer to lye, and equally determined to avoid it, at all costs. What I actually learned is that, without lye, in one form or another (Sodium chloride or Sodium hydroxide), there is no soap. The good news is that, like with many other chemicals, lye goes through a complete chemical change, in the process of becoming soap, so that when the soap is finished, the lye is used up, and gone - if that is the goal, and the correct steps are taken to ensure it. For example, when a pet pees on the floor, we're advised to clean it up with vinegar, because the ammonia in the urine is a base, and is chemically altered by the vinegar, which is an acid, and it kills the ammonia scent.
Similarly, when fats are combined with lye, the fats are saponified, the lye is chemically altered, heat is released, and what's left, is soap. The key, in both the ammonia/vinegar and lye/fat process, is in the quantities of each. It takes a certain ratio of each substance to attain the desired effect. A couple drops of vinegar in that piddle-puddle isn't going to neutralize all of the ammonia - I tend to prefer to err on the side of generosity, and a quarter cup of urine is going to want half a cup of vinegar, in my book. In the case of saponifying fat with lye, the balance requires a bit more precision, largely dependent upon which fats are being used. Different fats saponify with different amounts of lye. If only the exact amount of fat is used, to neutralize the lye, the soap can be drying (this is why some soaps are so very effective as household cleaners), but, if a little extra fat is used, beyond what is needed to neutralize the lye, the result is a moisturizing soap. This second process - more fat than is needed for the change to occur - is called 'super-fatting'. The more a soap is 'super-fatted', the more moisturizing it is.
I now make all my own soaps, because I love being able to formulate them, myself, using herbs, fats, essential oils, that I want, for whichever of my purposes each batch is intended. I make a lovely but simple household soap with coconut oil, and a '0%superfat' that cuts through grease like nobody's business, a 7% superfatted goat milk moisturizing facial cleanser bar, a 6% superfatted shampoo & body bar, and (particularly for travel) I make a 6% superfatted head-to-toe bar. It took me some time to figure out my formulas, and I was nervous, when I first began, that my numbers would be off, or my method would be wonky. So, I searched for information on how to determine the correct balances, for me.
By far, the easiest way I've found to reach that balance, to ensure there is no lye left, but the fat is all transformed, is an online lye calculator. One simply shares a recipe of fats, and the super-fat percentage desired, and the calculator spits out the correct amount of lye and water to reach that level of super-fatting.
I will happily expound, if you'd like. But, no lye = no soap, unless one uses some plant matter, usually dried or fresh. Once the plant matter is saponified with water, it will usually go bad, within a few days.
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Blake Lenoir wrote: You all heard of buffaloberry or soapberry ( shepherdia candesus )? I believe the berries are used as soap and is it true today?
"The only thing...more expensive than education is ignorance."~Ben Franklin
"We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light." ~ Plato
John Duffy wrote:WOW! Thank you Carla for your response to Blake...I learned so much from it!
"The only thing...more expensive than education is ignorance."~Ben Franklin
"We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light." ~ Plato
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