In our Soap Making here at The Soap Kitchen we make all our own soaps using what is known as the Cold Process method, which is often mistakenly known as Cold Pressed.
The phrase is slightly misleading in that the process is not actually cold, although following the initial melting of any solid oils such as coconut and palm oils, no further external heat is used.
With natural soap making, soap is made by chemical reaction. Many people have the picture in their mind that soap is made by endlessly stirring a bubbling mixture in a large pan over heat and although there is a 'hot process' method which might have similarities to this, most books and instructions on natural soap making only cover the 'cold process' method which is by far the easiest and simplest method.
Without going into the precise chemistry of soap making, basically, soap is made from combining an acid (oil/s) and an alkali (sodium hydroxide) in precise proportions. It is easy to see what oils and fats different soaps are made from. For instance, if you make soap from coconut oil the name for the soap which will appear on the ingredients list will be 'sodium cocoate', palm oil is 'sodium palmate' and so-on. If you look at the ingredients listings of soaps you can fairly easily see what oils they were made from.
We choose only to use pure vegetable oils in our soaps, although animal fats can be used. One popular animal fat used in many soaps is Beef Tallow, seen on the label as 'sodium tallowate', so any vegetarians amongst you will now be able to spot whether you are happy using your current soap or not.
Some first-time soap makers are wary of the fact that sodium hydroxide (caustic soda) is used in soap making. Please be assured that once chemically reacted with the oil/s in correct proportions, absolutely no caustic properties remain in the soaps. All soaps start out this way, hence the scientific words for the different soaps all beginning with 'Sodium', i.e. sodium palmate (soap made with palm oil).
If you've ever wanted to try soap making for yourself, you'll find everything you need here at the Soap Kitchen. You may even want to come to one of our regular soap making workshops. For details, go to our 'Workshops' page where you can send us your request for information.
Making your own recipes? You'll need the SAP values of all the oils you're likely to use. Click here to go to our 'Guide to SAP Values' page.
Buy a good book on Cold Process Soap making
Click here for advice about safety assessing your soaps for sale.
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