Saponista
Well-Known Member
I haven't seen grayceworks around in ages. Wonder what happened to her......
Well I have another question regarding the use of boiling brine water in order to clean a very old oil so as to make soap without any odor.
Can this also be done with an old Shea Butter that has started to smell weird(rancid)? Or with this method we are going to clean also the unsaponified matter it has that makes Shea a special Butter to use in a soap?
Are the unsaponifiables water soluble also?
Well yesterday I cleaned 3 times a very old olive oil with brine hot water and when I discarded the brine the oil itself was and is still cloudy. Does it need any filtering prior using it for soap making? Is this phenomenon for the moisture that the brine water added? Or is it ok to make soap right away?
I'm sorry for making this geek information thread into a "Why" & "How to" questions one.
Geek Tip -- First aid for Lye Burns
For the sake of those who may have heard to use vinegar to treat a lye spill on your body -- that advice is absolutely wrong!
Never, never, NEVER use vinegar on a lye splash anywhere on your body. Rinse with plenty of plain cool running water.
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The correct first aid if you get lye (NaOH or KOH) or raw soap batter on the body is this -- Rinse with plenty of plain cool running water. If you don't have access to clean water, rinse in the nearest mud puddle -- but you have to rinse!
You have SECONDS to react, so MOVE FAST. The quicker and more thoroughly you get the lye rinsed off, the better. Rinse for at least 10 minutes. Remove contacts and contaminated clothing as soon as possible. If the lye is under the fingernails or in other crevices, gently scrub and clean those areas carefully to remove all traces of lye.
If the burn is in or near the eyes, nose, or mouth or is a deep or large burn, see a doctor or emergency room for treatment immediately after you have rinsed well with water.
Treat small, mild lye burns just as you would any second degree burn. Keep the wound covered and moist with a water-based product. Do not use oily salves, butter, or other fatty stuff on any burn.
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The geek explanation of why using vinegar is a Very Bad Idea --
Vinegar, an acid, does indeed neutralize lye, an alkali, but there are serious downsides to doing this kind of chemistry directly on the body.
First, the your skin is already being damaged by the lye. Alkali burn ... ouch!
Adding vinegar to the lye will trigger that neutralization reaction, which releases plenty of heat. If you know how hot your lye solution gets right after you mix the lye with water, you know exactly what I'm talking about. Thermal burn ... ouch!
On top of that, the vinegar itself, being acidic, will irritate the body tissues already injured by the lye and the heat. Acid burn ... more ouch!
All this damage results in intense pain and possibly a deeper, slower healing wound. Yikes!
To make matters worse, lye is a strong alkali and vinegar is a weak acid, so you need to use lots of vinegar in proportion to the amount of lye on the body. If you don't use enough vinegar and don't rinse long enough, the lye will remain active and continue to do its damage.
So if you want an alkali burn + a heat burn + an acid burn + major pain + a slow healing wound ... then by all means, use vinegar.
I will stick to plenty of cool running water, thank you very much!
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If it makes you feel better to spray vinegar around your work area and to rinse your utensils with vinegar, then do so. You aren't going to harm anything by using vinegar on non-living things. That said, just a good rinse with water is really all that's needed for them as well.
For cleaning soapy or oily bowls and utensils that may have active lye on them, I wipe the items with old towels to remove excess soap and oil residues and then rinse the items well with water. I use a synthetic detergent cleaner like Dawn and hot water to do a final wash.
The soapy/oily/alkali-covered towels go into a plastic bucket far out of reach of curious human hands and critter paws. Once the residues have had a day or so to saponify, the towels gets washed with dirty chore clothes.
Everyone has a favorite way of cleaning up their work area and equipment after soaping; this is just my method.
Geek Tip -- The difference between high-, mid-, and low-oleic oils
Safflower and sunflower oils are sold in high oleic, mid oleic, and linoleic (regular low oleic) versions depending on the amount of oleic acid in the oil. The differences in the fatty acid content comes from natural variations in sunflower and safflower plants. These differences have been enhanced by conventional plant breeding methods.
Regular low oleic (aka linoleic) oils contain mostly polyunsaturated fatty acids -- specifically linoleic and linolenic acids. These fatty acids become rancid fairly quickly in storage and break down quickly when heated. Mid oleic and high oleic oils contain at least 50% oleic acid, which is a more stable monounsaturated fatty acid. These higher-oleic oils will not break down as fast when used in the kitchen for frying and sauteeing. They work better in soap because they are not as prone to becoming rancid (also called DOS, dreaded orange spots). High oleic safflower or sunflower is a good substitute for olive oil.
So how to tell the difference? First, check the label for phrases such as "good for frying or sauteeing" or "high temperature" or even "high oleic," all of which will tell you the oil is a high oleic version.
If you don't see any helpful information like that, then use the nutrition information to calculate an answer --
% oleic (monounsaturated) = (grams monounsaturated fat per serving) / (grams total fat per serving) X 100%
If the monounsaturated fat is above 75%, it is a high-oleic oil.
If it is between 50% and 70%, it would be a mid-oleic oil.
If it is about 20%, it would be regular (linoleic) version.
Please, please, please post this on your website, pretty please? I really need to be able to point people to it!
DeeAnna I think you should also make a liquid soap section in your little soapy treasures corner with this post of yours:It is there already, Susie -- look in the sections on Lye and also on Safety and First Aid. https://classicbells.com/soap/lyeFirstAid.html
Geek tip -- Why should you NOT use "full water" in your recipes?
Geek tip -- How to calculate a recipe with less water
Geek Tip -- What are the SoapCalc numbers
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