I began my soap making adventure several years ago because my skin starting getting really dry. It seemed like it would be fun. I had a Crockpot and olive oil and a wand mixer….why not? Crock pot soap is so incredibly easy to do. As long as you use the safety devices it’s very safe and no...It won’t stink up your kitchen or leave a nasty taste at the back of your throat.
The materials you will need are
1. Safety goggles
2. Rubber gloves
3. Long sleeve shirt
4. Wand mixer
5. Crockpot
6. Lye calculator-you can find these on the internet. https://www.soapguild.org/tools-and-resources/product-price-calculators/lye/ is a great ly calculator. you can choose from a wide assortmen of oils.
7. Oil
8. Sodium hydroxide for bar soap and Potassium Hydroxide for liquid soap.
9. Spring water
10. Scale
11. Soap molds
To begin with, this guide is for making castile soap or variation thereof. Castile soap goes back to 1616 in the Castile area of Spain. The history of soap itself goes back much farther. The earliest recorded evidence of the production of soap-like materials dates back to around 2800 BC in Ancient Babylon. A formula for soap consisting of water, alkali and cassia oil was written on a Babylonian clay tablet around 2200 BC. The Ebers papyrus (Egypt, 1550 BC) indicates that ancient Egyptians bathed regularly and combined animal and vegetable oils with alkaline salts to create a soap-like substance. Egyptian documents mention that a soap-like substance was used in the preparation of wool for weaving. Cleopatra credited her complexion with the use of mare’s milk in soap. However this substance is not like what you see today. Soap is made by cooking fats and oils with toxic materials such as lye, caustic soda or potash. You must have just the right combination of ingredients and just the right measurement of these ingredients for the soap to be usable and not to goopy or not too grainy.
As with all things, people began to specialize in the manufacturing of soap. The best soaps were known to come from the Castile region of Spain, where olive oil instead of animal fat was used in the making of the soap. The wealthy classes in Europe used Castile soap for hundreds of years. In the American colonies, people made their own soaps at home. They made lye by mixing burnt wood ashes with water in a bucket. The lye dripped out of holes drilled in the bottom of the bucket. They got the fat they needed from the butchering of livestock. The animal fat was melted and mixed with the lye until it formed soap. As you can imagine, it was a nauseating (and dangerous) process. In America, the first commercial soap making companies came on the scene in the early 1800s. People were happy not to have to make their soap anymore and these early soap entrepreneurs were very successful. I can’t tell you how happy I am that I don’t have to make soap that way! That just seems nasty….
So today we can go shopping for soap. Have you ever read the labels? I can’t pronounce half the words and I sure have no clue where they come from. Well probably the lab. So I digress. We don’t want to shop for soap...we want to make it. Out of natural ingredients. We’ll start with the oils. There are many different oils you can use to make soap. Some are vegetable and some animal. Castile soap as it is made today is made with only vegetable oil. Back in the day it was only olive oil but today it is all inclusive. Oils are weighed out as are the other ingredients. All oils weigh different amounts and therefore have different lye ratios. That’s why it’s so important to use a lye calculator .The one I listed is the best on the internet because you can create your own soap recipe and save it. Also you can use a variety of different oils in combination for different purposes. You can create soap for dry skin and medium skin and oily skin. You can add exfoliant and colors and scents. Use your creativity to make the perfect soap for you
Vegetable Fats & Oils
Almond Oil, Sweet-Almond oil is used to remedy dry skin conditions, as a carrier or base oil to blend essential oils and for a variety of skin care and cosmetic products. Because it is a Light oil it is fully absorbed by the skin and has a lot of vitamin e in it. coupled with its excellent emollient and nourishing properties, promotes a soft and smooth skin. It can actually dislodge dirt and debris that gets caught in skin pores, thus preventing acne and blackheads. Almond oil is recommended for use in the treatment of eczema and psoriasis.
Apricot Kernel Oil-For soap making, apricot kernel oil is recommended. Apricot Kernel oil adds a conditioning asset to soap. Use it in moderation. Apricot kernel oil is easily absorbed by the skin without leaving it feeling oily or greasy. It is high in poly-unsaturated fatty acids. Since apricot oil helps to soothe inflammation, it is particularly beneficial for dehydrated, delicate, mature and sensitive skin.
Scenting Oils - There are two types of scenting oils, fragrance oils, which are man-made and contain alcohol and essential oils which are natural. The alcohol in fragrance oils tends to cause problems in soap making so essential oils are normally used. You can make the essential oils yourself and use them as one of your base oils. They may also be added at the trace stage
Superfatting Soap - This means that oils or fats have been left in the soap unconverted by the lye either because the amount of lye was decreased to allow some fat/oil to remain or oil/fat was added at the trace stage after the mix had saponified. (In lay terms saponification means that the lye/water and oils have been mixed and brought to a trace stage where at this point the lye has been mostly neutralized. Any oil added at this stage will basically remain unchanged in the final soap bar) The method of adding additional fat to the soap mixture after it has saponified has an advantage in that it allows the soap maker to better control what oil is left in the soap. Adding the extra oil at this time keeps it in its natural state, and ready to instantly moisturize your skin as you use the soap. When superfatting your soap at the trace stage makes sure you use the 1% excess fat lye amount. Otherwise the soap will be too oily because it will not only contain the oil you add at the trace stage but will also have excess fat from a lack of lye. Superfatting soap by decreasing the lye content eliminates the step of adding oil at trace but decreases the control that the soap maker has over what oil is left in the soap. For example, if 5% cocoa butter was added as part of the base oil (say 95% Olive Oil) and the lye amount was calculated for a 5% excess fat level the excess fat in the soap would be made up of a combination of Olive oil and cocoa butter with most of the excess fat being Olive oil. If the same batch was mixed using just Olive Oil at a 1% excess fat level and the cocoa butter was added at the trace stage you would know that the final soap bar contained 1% olive oil and 5% cocoa butter. The cocoa butter would have in this case been unaffected by the lye since it was added after the soap had traced. (NOTE - When adding oils at the trace stage (superfatting) is sure to use a lye calculatation that gives you about 1% excess fat. When using the Soap-Calculator program or any other lye calculator do not include the oils that you will be adding at trace in the calculation)
Trace - The point at which the soap/lye mixture begins to thicken. At this point the solution is about 80-90% saponified and essential oils, superfatting oils, colors, additives, etc. can be added without their characteristics being changed substantially by the saponification process.
Unsaturated Fat - Oils that are in a liquid form. They need to be mixed with saturated fats at the base oil stage in order to create a hard bar.
Lye- Now a little bit about Lye. It’s really dangerous. Keep vinegar handy when making soap. If you spill any on you pour some on the area. The vinegar will neutralize the burn and lye does burn. Lye, also known as sodium hydroxide, is a key ingredient in the soap making reaction called saponification. Although this chemical is essential to produce mild handmade soaps, the substance in an unadulterated form is extremely alkaline and caustic. Sodium hydroxide is leached from wood ash using water. In this process, Soft water (rain water or water from a dehumidifier) must be used because it lacks unwanted substance like calcium, magnesium and acidic chemicals that may react with the sodium hydroxide. The ashes used in this process must be white ashes only. This type of ash is the result of burning wood at extreme temperatures. Because of lye's harsh properties, caution must be used when working with it. When handling this caustic chemical, always wear rubber gloves and thick outerwear. And now to get completely scientific on you!
Saponification is the hydrolysis of an ester under basic conditions to form an alcohol and the salt of a carboxylic acid (carboxylates). Saponification is commonly used to refer to the reaction of a metallic alkali (base) with a fat or oil to form soap. Saponifiable substances are those that can be converted into soap.
Sodium hydroxide (NaOH) is a caustic base. If NaOH is used a hard soap is formed, whereas when potassium hydroxide (KOH) is used, a soft soap is formed. Vegetable oils and animal fats are fatty esters in the form of triglycerides. The alkali breaks the ester bond and releases the fatty acid salt and glycerol. If necessary, soaps may be precipitated by salting it out with saturated sodium chloride. The saponification value is the amount of base required to saponify a fat sample. Ok basically that means you need oil (fatty acids) and lye (alkaline) and combining them and heating it up makes soap...hey that was much easier right. So anyways….to sum this up you need protective gear so you don’t burn yourself, you need oil, you need lye and water to mix the lye in. Please be sure to keep some vinegar handy just in case you get the lye on you. Pour the vinegar on and it will neutralize the lye.
Are you ready to start….I am!
Get out your scale for this recipe you need...
20 ounces of olive oil
20 ounces of Grapeseed oil. Olive oil is awesome for your skin and Grapeseed oil lathers incredibly...olive oil doesn’t.
5.5 ounces (measure by weight) of sodium hydroxide. I get mine at the hardware store up the street you have to look in the plumbing section.
Put 12 ounces (liquid not by weight everything else is by weight) of water in a glass measuring cup...Pyrex is good. You always pour the lye into the water the other way around creates a lye fountain...not good!. Put the lye and water mixture aside. It’s very hot be careful. Safety at this point is essential. You put the Crockpot on high and pour your oil in. wait for the oil to hit about 180 degrees. When the oil and the lye mixture are the same temperature pour them in together. Use your wand mixer to give it a swirl. It will thicken and become 1 solid color with bubbles around the edges. As time goes by the bubbles will get bigger...you can just leave it alone or you can stir it...either way it works. Personally I place the cover on the Crockpot and I do something else. Although the first time I did this I sat and watched with amazement. The bubbles over time create a soap island. At the end it’s all bubbles. At this point I turn off the Crockpot and wait a few minutes for it to cool just a little bit. Then I add any coloring or scents or goats milk to it and I mix it really well. Yes really it’s that easy.