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Create Soap Recipes
For Blender Soap and Beyond

Learning to create soap recipes is where the creativity really begins.  And, once you start adding some of the additional know how about herbs ... well, the possibilities are almost endless.  A friend of mine calls this, "cooking without the calories."

There are only a few things to remember when working with blender soap:
1.    Your Fixed Oils MUST have a total weight of 13 ounces.
2.    You will ALWAYS use 5 ounces of water if you use 13 ounces of oils.
3.    Always go light on additives.
4.    You MUST calculate the SAP Value (more in just a moment) for each Fixed Oil Separately.

With those things in mind, let's dig in and learn how to create soap recipes!


When you create soap recipes for Blender Soap, your Fixed Oils MUST have a total weight of 13 ounces.
Your weight of oils and butters has much more freedom in other soap making.  However, with a blender, you must stay at 13 ounces.  And, you could go less then 13 ounces (see water below as well).  This amount developed because 18 ounces (13 ounces of oils and 5 ounces of water) is the maximum amount that most blenders will handle without putting to much stress on the machine.  You could use one Fixed Oil at 13 ounces or you could use 13 Fixed Oils each at an ounce (heck, you could even use 26 Fixed Oils all at a half ounce each, lol).  Basically, you can use any combination of any oils you like, so long as the total weight, all together, is 13 ounces.

When you create soap recipes for Blender Soap, you will ALWAYS use 5 ounces of water.
If you use 13 ounces of oils, you will always use 5 ounces of water (or in some cases other liquids like juice or milk).  It doesn't matter what oils or additives you use.  That's an easy one.  If you get daring with the amount of oils in your recipe the calculation of water to oil is 38%.  Calculating on 13 ounces of oil gives you 4.94 ounces of water.  Round it and you get 5 ounces.  Another way people calculate oil to water is that for every 3 ounces of oils, fats or butters you use 1 ounce of water. Doing it this way your water amount for 13 ounces of oils would be 4.33 ounces.  Either calculation method works, use whatever method you like.

Some people like using less water in their soap recipes - the soup cures a little faster.  However, with Blender Soap using less water will make the soap firmer in the blender - making it harder to get out of the blender cup and that is the main reason for using 5 oz of water with 13 oz of oils.

When you create soap recipes for Blender Soap, always go light on additives.
One of the biggest mistakes, many soap makers make, is putting too much of something in.  Go into a bath shop sometime and watch as people pick up bars of soap, sniff them, make a face and put them back down.  Yes, it might be because they don't like the scent, however - more often then not, it IS because the scent is too darn strong.  One time, as I was watching people, I got up the nerve to ask a lady why she put the soap back down.  She said, "I love roses but geez - that hurts my nose!"  From that day forward I started going light on scent and herbs - and - from that day forward my soaps were MUCH better.

Fragrance oils and/or essential oils can be measured by volume.  In your own recipes you can even convert these to measuring spoon amounts.  2 tablespoons = 1 ounce, 1 tablespoon = 1/2 ounce, 1 teaspoon = 1/6 ounce.  A good rule of thumb is that 2 teaspoons of a fragrance oil is generally plenty, 1 teaspoon of an essential oil is generally plenty.  Use your own nose.  If the fragrance or essential has a strong smell, use less.  I measure these right into the blender.  The big exception is with Lemon, Lime and Orange (or any citrus) essential oil.  These evaporate fast and you really need to use a lot more in the beginning, about one quarter to one half ounce.

For the most part, all herbs should be powdered.  This can be done with a mortar and pestle if you like, however a coffee grinder works much better and faster.  You will find that most people do not like the feeling of chunky herb in their soap.  There are a few exceptions, such as oatmeal or cornmeal that can be used as exfoliates (made to take off dead skin).  Weigh your herb, powder it, then weigh it again.  Then dump it in the blender.  As with essential or fragrance oils - a little bit of herb goes a long way.  They will also change the color of your soap (and often not what you expected).  In general 1/4 of an ounce is all you need.  If you are working for a color (such as flower petals) make sure you remove all the green parts as they WILL discolor your end result.

Last but not least, the big one . . .

When you create soap recipes for Blender Soap, you MUST calculate the SAP Value for each Fixed Oil Separately.
Vegetable and nut oils are made of fatty acids which need a certain amount of alkali (lye) to change them into soap, or saponify them.  I've done my best to put together this SAP value chart with as many oils, butters, and other ingredients as I can find.  The chart will help you calculate the saponification value (SAP Value) for the oils you are using, therefore showing you how much lye to use.  Use NaOH (Sodium Hydroxide) for hard or bar soap, and KOH (Potassium Hydroxide) for liquid soap.


I found this company during a search for a good supplier of lye.

No matter where you buy your lye from ALWAYS ask to check the data sheets
and be sure to read their terms for shipping - because this is a hazardous matterial
the shipping of this can be expensive.
When purchasing from Essential Depot most soap makers use
the Food Grade Lye.


Here's the formula to use when using the SAP Value Chart:
Oil (in ounces) x SAP value (from chart below) = Amount of lye needed (in ounces)
(Oil multiplied by SAP Value = Lye Needed)

If you are using more than one type of oil in a single recipe, do the above step for each oil and total your results together to get the total amount of lye needed.

Very few of us have a scale that can measure lye in the kinds of decimal ounces listed on the SAP Value Chart, so round it off to the nearest .2 of an ounce if you have to.  Example: If you are using Sweet Almond Oil, 10 ounces, you would need 1.37 ounces of lye - round this to 1.4 ounces.  The BEST option, for PERFECT soap, is to get a scale that will measure the exact amount.

Let me go into a bit more detail on how to use the SAP Value Chart.  Let's say you are making a soap using two oils on this list; Almond, Sweet, and Apricot Kernel.  And, you decide to use 7 ounces of Almond, Sweet and 6 ounces of Apricot Kernel.  Here's what your calculation should like:
Almond Oil, Sweet (7 ounces multiplied by .137 = 0.959)
Apricot Kernel (6 ounces multiplied by .134 = 0.804)
0.959 plus 0.804 = 1.763 total lye (Sodium Hydroxide) needed.

So what's a good soap recipe to start with?  The lye is going to be the hardest thing to aquire, with that in mind here's a good basic recipe that you don't have to also hunt for the oils.  The two main ingredients can be found in most grocery stores.

Olive oil is available in almost all grocery stores now.  You don't need to get the most expensive grade or brand for soap making.  Just a good Olive oil will do nicely.  Lard may be a little harder, so ask your store clerk (or the butcher's department).  Lard is still used to make wonderful pie crusts so it's very common.

Basic Olive Oil / Lard Soap
Olive Oil / Lard - soap fresly poured into the molds.

Lard:  10 oz
Olive Oil:  3 oz.
Water:  5 oz.
Lye (Sodium Hydroxide):  1.8 oz.

Follow the soap making instructions here on this website.

I love this soap because it's such an easy soap to make and so very kind to the skin.  It lathers wonderfully and leaves you feeling clean and moisturized.  This soap can be used for all your soap needs from bath - daily clean up.

If you would like to add a little herb or fragrance, go right ahead.  This recipe holds scent very well.  

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Original Text Copyright © 2004, by Sandy Marie deFerbrache, Second Printing 2007, Web Site Adaptation 2009.  Original Photographs Copyright © 2004, by Sandy Marie deFerbrache, New Photographs 2007.  All Rights Reserved.

All information, shared on this web site, is for enjoyment and study only and is NOT meant to diagnose or treat any medical condition.  Only your health care professional is qualified to diagnose or treat medical conditions.  Do not risk your health!  Just because something is 'natural' does NOT make it safe.  Do not, under any circumstance, ingest or use herbs in any form without consulting your Doctor.  If you do, you do so at your OWN RISK.

Web Site Content (text, graphics, look and feel) are Copyright Protected © All Rights Reserved 2009 - 2010, Sandy Marie.
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