Miller's Homemade Soap Pages:

Design *Your Own* Recipe!

*APOLOGY* ... to those of you who have emailed me this year (2012) and have never heard a peep out of me... I'm sorry. I don't have as much time for personal email responses as I once did and added to that have been a couple of trips, a surgery, garden catch-up, church responsibilities, soapmaking and orders and more visits from children and grandchildren who have moved nearby. I just can't keep up. If your email involved troubleshooting of a recipe or a lengthy response, it was probably put aside for when there was more time and then fell through the cracks because "more time" didn't happen. :-/ I don't see that changing through the end of 2012. I hope you understand and know I would love to be able to acknowledge every email I get.

[Almond Joy Soap]
"Almond Joy" soap... in reality, a bit less white than the image portrays.
You can find this recipe on the All-Vegetable Soaps page.

All the following information is for those of you who are adventurous and want to develop your own concoctions. If this is just confusing to you, use recipes that have already been developed by others that have the bugs worked out of them. But if you would like to experiment, I'm hoping that this information will give you a starting point! A special thanks to those who have helped provide more useful information...especially to Rachael Levitan.

-Kathy Miller-

Contents of this page...

 

NEW! Check this out! :-) - Some generous soapmakers contributed this delightful soapy explanation with illustrations in order to visually explain the process of Saponification and Lye Discounting. I just love this! Thanks to Pat B! and Jennifer Davis of Canis Art!

Here is the link: http://www.canis-art.com/soaping.htm

 

 

How Much Lye to Use?

NOTE: Sometime in the spring of 1999, the Lewis Lye company started packaging their lye crystals in 18 ounce containers with reclosable child-proof lids. Be sure you notice how many ounces are in the can you have purchased before you dump it all into your batch! You may need to get a postal scale in order to weigh out the proper amount. I have still seen 12 ounce containers, but don't know if they are old stock or whether they are still packaging it both ways.

The first consideration in designing your soap recipe is that the balance of lye to fats be correct so that you will have a mild end product. This is determined by the saponification values of the oils. Elaine White has been very generous in providing this useful information to people via her website. Her chart is widely accepted, but some people think that relying on it alone can yield a harsher soap than using the Lye Calculator at Majestic Mountain Sage (Link Below) which displays the amount needed for a milder product. You can use either...but measure carefully if you're using the original saponification numbers.

All recipes are based on WEIGHTS, not volume. You will need to weigh oils and lye with a good scale. Water can be measured with a liquid measuring cup with no problems.

In the chart below I have put up the original SAP numbers (Elaine's) and a second set that has a built-in cushion of 5% extra fat. People who make soap all the time sometimes come up with their own favorite numbers, but this will give you something fairly reliable to work from if you don't want to go online every time you create a recipe. If you want to add a bit of superfatting oil at the end, you should still be able to do that with the lighter numbers, but I wouldn't get carried away since some superfatting is already there.

To use the following numbers, take the amount of fat you plan to use in your recipe (in ounces) and multiply it by the decimal number assigned to that type of fat. The resulting answer will be the amount of lye needed (in ounces). You can round your numbers up when you finish calculating them, but I'd wait and round up the whole thing after adding the numbers for each fat you are using in your recipe.) If you are combining fats, you can add the results of the calculations and see how close it comes to the standard 12 ounces of lye that come in a can (I don't like measuring lye crystals or having partial cans left over so the ideal recipe for me will use 12 ounces...if you are buying lye in bulk, this will not be a concern for you). Adjust your fats accordingly. At least 1/4 of your fat content should be a fat that is hard at room temperature but this is not written in stone. When designing your own recipe, a rule of thumb for the water used is approx. 1/3 of the total weight of the fats (in other words, add up the weight of the fats and oils and divide that by 3 for the ounces of water needed). Many people like to have a small cushion of extra fat in a recipe for mildness and usually strive for about 5-8%. If you use the Majestic Mountain Sage Lye Calculator link below, it will make that easier. Here is a list of most of the fats you might think to try in your soap, and a few others you may never want to use! ...

 

Saponification Numbers for Lye (Sodium Hydroxide)

Milder Column with a 5% Discount

Oil
Almond Oil (Sweet)
Apricot Kernel Oil
Avocado Oil
Babassu Oil
Bear Tallow
Beef Tallow
Bees Wax (white)
Brazil Nut Oil
Butterfat, Cow
Butterfat, Goat
Camellia Oil
Canola Oil
Castor Oil
Chicken Fat
Cocoa Butter
Coconut Oil
Cod Liver Oil
Corn Oil
Cottonseed Oil
Crisco/Veg. Shortening
Flaxseed Oil
Grapeseed Oil
Hazelnut Oil
Hemp Seed Oil
Java Cotton Oil
JoJoba Oil
Karite Butter (Shea)
Kukui Nut Oil
Lanolin (Wool Fat)
Lard
Macadamia Oil
Maize Oil
Old
.136
.135
.133
.175
.139
.140
.069
.175
.1619
.1672
.1362
.134
.1286
.1389
.137
.190
.1326
.136
.1386
.136
.1357
.1265
.1356
.1345
.137
.069
.128
.135
.0741
.138
.139
.136
Milder
.129
.128
.126
.166
.132
.133
.069*
.166
.154
.159
.129
.129
.125*
.132
.130
.1805
.126
.129
.132
.129
.129
.120
.129
.128
.130
.066
.122
.128
.070
.131
.132
.129
Oil
Mink Oil
Mustard Oil
Neat's Foot Oil
Neem Oil
Niger Seed Oil
Nutmeg Butter
Olive Oil
Olive Pomace Oil
Palm Butter
Palm Kernel Oil
Palm Oil
Peanut Oil
Perilla Oil
Poppyseed Oil
Pumpkinseed Oil
Rapeseed Oil
Rice Bran Oil
Ricinus Oil (Castor)
Safflower Oil
Sesame Seed Oil
Shea Butter
Shortening (Vegetable)
Soybean Oil
Sunflower Seed Oil
Tallow, Deer (Venison)
Tallow, Bear
Tallow, Beef
Tallow, Sheep (Mutton)
Tallow, Vegetable
Tallow, Goat
Walnut Oil
Wheatgerm Oil
Wool Fat (Lanolin)
Old
.140
.124
.136
.136
.135
.116
.134
  
.156
.156
.141
.136
.137
.138
.133
.134
.128
.129
.136
.133
.128
.136
.135
.134
.138
.139
.141
.138
.135
.138
.135
.131
.074
Milder
.133
.118
.129
.132
.129
.110
.128
.126
.148
.148
.134
.129
.130
.131
.126
.129*
.122
.125*
.129
.126
.122
.129
.128
.1275
.131
.132
.134
.131
.128
.131
.129
.124
.070
 

*Numbers higher than the 5% difference because it works better than dropping it down too much.

Special thanks to Therese and Bill Lott who provided the spreadsheet that saved me a lot of time in calculations! They will send their spreadsheet lye calculator to you upon request. Please tell them which program you will be using and the version so that they can attach the appropriate file.

Also, a thank you to Rolland Jones for more clarification on the SAP differences between canola and rapeseed oils. :-)

 
Original Saponification Chart courtesy of Elaine C. White who has a soapmaking page on the Web at:
http://members.aol.com/oelaineo/soapmaking.html

***** If you'd simply like to print the above table by itself for reference, here's the link! Saponification Numbers

Soap Recipe Spreadsheet Template! - This is a wonderful tool shared by Chris Mathes and is shown on the index of the soapmaking pages. You can download this spreadsheet to your own computer if you have the right software and use it to calculate your own recipes. A big thanks to Chris for fine tuning and sharing this resource with us! :-)

Return to Top of Page

 

What is all this talk about "discount" and percentages?

I guess you could figure it this way. It will take a given amount of lye to completely saponify an ounce of a certain fat...with no excess lye or fat left over. This is what the numbers are based on. If you want a cushion of extra fat so that it's milder, you build it in by having 5% more fat in the recipe than you have lye to saponify it...5% excess fat. You can either add on more fat, or subtract some lye...but in the end you want about 5% difference (some people want even more), with the fat being higher. SO, if you figure out how much lye it takes to get it to be a perfect saponification (with no extra of either)...then you take that number and multiply it by .95 (95%), you would then have the amount of lye you want for that 5% cushion. Am I just confusing you more? So, if my recipe said 12 ounces would perfectly saponify the fats, I would multiply 12 oz. X .95 = 11.4 oz. of lye. If I used 11.4 ounces for that recipe, I would end up with it being a 5% discount and would have extra fat in the recipe by that amount. This is more to protect us from errors than anything (measuring types). You can still do a little bit more superfatting with a 5% discount and be okay, but if you get too carried away, your soap could be kind of soft or a bit spongy. The MMS lye calculator is nice because it gives you the measurements in the three areas (although the one that says "proceed with caution" would be fine if you are totally accurate in your measurements).

What complicates this a bit more, is that there is more than one SAP table out there. Elaine White came up with the first one and it is a bit on the higher side for the amount of lye it recommends (and laboratory conditions and the quality of fats can change the numbers a bit too). It doesn't leave much margin for error. The Majestic Mountain Sage people have a slightly altered SAP chart they use for their calculator (don't know exactly how much...but on some of the oils used most often, their numbers are a bit different) and they also show you the quantities you need for certain amounts of excess fat in your recipe. I put up the chart above so that I could use numbers with the 5% built in and figure the recipes without MMS online calculator if I needed to. When I've figured the recipe with milder numbers and the 5% built in, I don't worry about superfatting at the end...unless I put in a tiny amount of castor or vitamin E. or something.

Also something to note: In Susan Miller Cavitch's books she gives a SAP table, but many people fail to notice the the posted numbers are for Potassium hydroxide and not Sodium hydroxide (lye). You have to multiply all of them by a fraction (40/56.1) to get the SAP numbers for lye. I've seen people quote those numbers as the SAP value for lye and wow! Would that ever by a lye heavy recipe if someone used them! I just saw something like this on a site that sells cocoa butter. She had in her specs on cocoa butter a SAP number of 193.8.

Since I use lye in 12 oz. cans, I try to make it come out (on the MMS site) with around "12 oz." shown in the 4-5% range on their chart. If it's not quite right, I back up and change the quantity of oils slightly and refigure until it comes closer.

You can superfat in any number of ways and I don't think it's magical to just add it at the end, assuming it won't get saponified. If the saponification was completed that soon, we could use the soap as soon as it got hard without aging it (like when you cook it). If your superfatting agents have special qualities you want to retain (like vit. E.) then it might be worth adding them at the end when there's not as much free lye present, but for the other oils, I just add them up front and do the recipe with a 5% discount built in. Superfatting in that case is optional.

-Kathy Miller-

Return to Top of Page

 

NEW! Check this out! :-) - Some generous soapmakers contributed this delightful soapy explanation with illustrations in order to visually explain the process of Saponification and Lye Discounting. I just love this! Thanks to Pat B! and Jennifer Davis of Canis Art!

Here is the link: http://www.canis-art.com/soaping.htm

 

Majestic Mountain Sage Lye Calculator - Troubleshoot your recipes before disaster strikes!

As previously stated, many soapmakers prefer to use the Lye Calculator at Majestic Mountain Sage and feel its saponification numbers result in a milder soap. This is a GREAT tool, and before you make a recipe, you plug your ingredients into the open fields, hit a button and it will tell you how much lye is needed for the amount of fats you are using. It is recommended that you make your soap with an extra 5-8% fat to be sure that it will be mild. If you are adding a lot of fragrance oil to a batch ... like 4 oz. or more (essential oils tend to be stronger and have a different composition, so probably not a problem in this regard), you may not want it to be overly superfatted in addition...this may contribute to some soaps oozing glycerin while curing).

A hint for calculating shortening SAPs on MMS: Majestic Mountain Sage doesn't have a field for shortening, since its ingredients can vary. For ease in calculating, you can plug your shortening amounts into the field of some other oil with a similar SAP number. For a SAP value of .129, use the Safflower or Corn Oil field. (I used to recommend Avocado, which has a lower number, but think some of the shortening recipes were too superfatted, so have upped it slightly.)

Majestic Mountain Sage Lye Calculator for Creating Soap Formulas
(http://www.the-sage.com/services/calculator.html)

Return to Top of Page

 

Yet more saponification numbers!

These are the SAP numbers from Rachael Levitan, who participates on the Latherings Soap Forum:

"About that oils-vs-fats thing. You need a maximum ratio of at least 40% fats to 60% oils or better... or you'll be stirring all day. So if you're going to make a recipe, just use one or two oils (mix if they have a similar sap value) with 20% coconut, and 20-40% other 'solid at room temperature' fat of your choice... palm, cocoa butter, lard, tallow, etc. Use these numbers and you won't get screwed up... or use the calculator at Majestic Mountain Sage and go for the 6% range for best results. (As a note...this is not always true. I made a castile recipe that had a little over 15% hard fats [coconut and palm] and the rest was olive oil. It traced with the stick blender in about two minutes. Rachael's rule of thumb would depend on which fats were used and their iodine index, etc.)

I swear by these numbers! No adjustments or superfatting deductions or anything. They are really good ones:"

palm .135
tallow .135
lard .135
coconut .178
canola (rapeseed) .129
soybean .130
shortening .126
olive .130
olive pomace oil .126
castor .125
beeswax .069
 
 
This is just another option that demonstrates that there's more than one way to do it but whatever you choose, you need to be careful that you don't have too much lye in the soap (or over about 8% extra fat either...you start running the risk of oily or softer bars).

Shortening Composition: Are you confused as to what's really in the shortening you use in soapmaking? It's a little frustrating to use the lye calculator when you don't know the percentages or which oils are present (and until I know that, I figure half-and-half, or will use the recommendation of plugging the shortening amount into the avocado oil field). Here's some more interesting information from Rachael:

I wrote to Crisco, because I wanted to see what was in Crisco 'really'. It makes such hard soap and I wondered why, exactly. Only soybean and cottonseed oils, and mono and diglycerides are listed on my can and some cans say canola, and the rest. But the diglycerides are also other oils and/or their fatty acids ...to help bind the major two oils. Well, it turns out that the binding oil, or mono and diglycerides, is palm. Would you believe that? Here's the paragraph from the letter:

"Crisco consists of: Partially Hydrogenated Vegetable Oils-Base ingredient. Can "flex" (Canola OR Soybean and Palm) according to supply. Switching between Canola and Soybean does not affect performance of shortening. Palm oil is always used to help solidify the product."

Return to Top of Page

 

Choosing Your Oils - Oil Properties of Fatty Acids

Fats lend different properties to the soaps they make, depending on which types of fatty acids predominate in their composition. If you know a bit about the oils you are using, you can make a more intelligent choice of which ones will give you the result you desire. Some of the following information and statistics were offered by Toni of Countryside Soap on the Latherings Soap Forum and thanks to her for sending me the original spreadsheet. You'll notice on some of the percentages that there is a fairly wide range, but the chart will still give you a good profile of what to expect from the oil you are choosing. You can also secure this information if you purchase The Soapmaker's Companion by Susan Miller Cavitch...a wonderful source of soapmaking information which I highly recommend if you want to get into the chemistry and nitty-gritty stuff about the whole process. If you find this page interesting, you will love her book.

Fatty Acid:

Properties it lends to soap:

Lauric Acid

Hard bar, cleansing, fluffy lather

Linoleic Acid

Conditioning

Myristic Acid

Hard bar, cleansing, fluffy lather

Oleic Acid

Conditioning

Palmitic Acid

Hard bar, stable lather

Ricinoleic Acid

Conditioning, fluffy stable lather

Stearic Acid

Hard bar, stable lather

 

Another aspect to consider is the Iodine Index. Simply stated, the lower the Iodine Index number, the harder the bar.

I've also made notations on oils that are useful for superfatting purposes or have special qualities. Just because I don't have a notation under a particular oil, doesn't mean it can't also be used for superfatting. It just means I don't have much information on its particular qualities.

Here is the Key:
S - Useful as a superfatting oil
M - Moisturizing
R - Rich in protein and/or vitamins
H - Humectant (attracts moisture to your skin...honey also does this)

 

*A few oils and their properties:

Almond Oil (Sweet)
Oleic 64-82 %
Linoleic 8-28%
Palmitic 6-8%
Iodine 93-106
S, M, R
Flax/Linseed*
Oleic 14-39%
Linoleic 7-19%
Palmitic 4-9%
Stearic 2-4%
Linolenic 35-66%
Iodine: 105-115
Palm Oil
Palmitic 43-45%
Oleic 38-40%
Linoleic 9-11%
Stearic 4-5%
Iodine 45-57
Apricot Kernel Oil*
Oleic 58-74%
Linoleic 20-34%
Palmitic 4-7%
Iodine 92-108
S, M, R
Grapeseed Oil
Linoleic 58-78%
Oleic 12-28%
Palmitic 5-11%
Stearic 3-6%
Iodine 125-142
Palm Kernel Oil
Lauric 47%
Oleic 18%
Myristic 14%
Palmitic 9%
Iodine 37
Avocado Oil
Oleic 36-80%
Palmitic 7-32 %
Linoleic 6-18%
Stearic 1.5%
Iodine 82-90
S, M, R
Hazelnut*
Oleic 65-85%
Linoleic 7-11%
Palmitic 4 - 6%
Stearic 1-4%
Iodine: 90-103
Peach Kernel*
Oleic 55 - 75%
Linoleic 15-35%
Palmitic 5-8%
Iodine: 108-118
Babassu Oil*
Lauric 50%
Myristic 20%
Palmitic 11%
Oleic 10%
Stearic 3.5%
Iodine 10-20
Hemp Oil
Oleic 12%
Linoleic 57%
Palmitic 6%
Stearic 2%
Linolenic 21%
Iodine: 166.5
S, M
Rice Bran*
Oleic 32 - 38%
Linoleic 32 - 47%
Palmitic 13-23%
Stearic 2-3%
Linolenic 1-3%
Iodine: 105-115
Canola/Rapeseed Oil
Oleic 32%
Linoleic 15%
Palmitic 1%
Iodine 105-120
Jojoba Oil (liquid wax)
Oleic 10-13%
Iodine 80-85
S, M, H
Safflower Oil
Linoleic 70-80%
Oleic 10-20%
Palmitic 6-7%
Iodine 86-119
Castor Oil
Ricinoleic 90%
Linoleic 3-4%
Oleic 3-4%
Iodine 82-90
S, M, H
Kukui Nut Oil
Linoleic 42%
Oleic 20%
Palmitic 6%
Iodine 155-175
S, M
Sesame Oil
Linoleic 39-47%
Oleic 37-42%
Palmitic 8-11%
Stearic 4-6%
Iodine 105-115
Cocoa Butter
Oleic 34-36%
Stearic 31-35%
Palmitic 25-30%
Linoleic 3%
Iodine 33-42
S, M
Lard
Oleic 46%
Palmitic 28%
Stearic 13%
Linoleic 6%
Myristic 1%
Iodine 43-45
Shea (Karite) Butter
Oleic 40-55%
Stearic 35-45%
Linoleic 3-8%
Palmitic 3-7%
Iodine 55-71
S, M, R
Coconut Oil
Lauric 39-54%
Myristic 15-23%
Palmitic 6-11%
Oleic 4-11%
Stearic 1-4%
Linoleic 1-2%
Iodine -<10
Macadamia Nut Oil
Oleic 54-63%
Palmitic 7-10%
Stearic 2-6%
Linoleic 1-3%
Iodine 73-79
Soybean Oil
Linoleic 46-53%
Oleic 22-27%
Palmitic 9-12%
Stearic 4-6%
Iodine 124-132
Corn Oil
Linoleic 45-56%
Oleic 28-37%
Palmitic 12-14%
Stearic 2-3%
Iodine 103-130
Mango Oil
Oleic 34-56%
Stearic 26-57%
Palmitic 3-18%
Linoleic 1-13%
Iodine 55-65
Sunflower Oil
Linoleic 70%
Oleic 16%
Palmitic 7%
Stearic 4%
Iodine 119-138
Cottonseed Oil
Linoleic 52%
Oleic 18%
Palmitic 13%
Stearic 13%
Iodine 80
Neem Tree Oil*
Oleic 50%
Palmitic 18%
Stearic 15%
Linoleic 13%
Iodine 84-94
Tallow
Oleic 37-43%
Palmitic 24-32%
Stearic 20-25%
Myristic 3-6%
Linoleic 2-3%
Iodine 43-45
Emu Oil
Linoleic 14%
Myristic 0.4%
Oleic 50%
Palmitic 21%
Stearic 9%
Iodine 75
Olive Oil
Oleic 63-81%
Palmitic 7-14%
Linoleic 5-15%
Stearic 3-5%
Iodine 79-95
H
Wheat Germ Oil
Linoleic 55-60%
Oleic 13-21%
Palmitic 13-20%
Stearic 2%
Iodine 125-135
 

There are other fatty acids present in some of these oils, but these are the basics.

*Information on Apricot Kernel, Babassu, Flax/Linseed, Hazelnut, Neem, Peach Kernel, and Rice Bran Oils courtesy of the Alban Muller Web Page, which last time I checked no longer had this information posted. Thanks to Jules for sending me more info for the above chart! Also a thank you to Deena Gentle for the properties of Emu oil. :-)

By looking at the predominant fatty acids present in each of the oils you use (particularly the first two numbers and the iodine index numbers), it's possible to select blends that will give you the qualities you value in your finished soap. By looking at the numbers, it's easier to appreciate why olive oil creates such a gentle, moisturizing bar. Soybean will do the same, but will yield a softer soap while olive oil yields a hard one. Palm oil will give you a hard bar, but also has the properties of conditioning to temper its nature, while coconut and palm kernel, with their lower levels of Oleic acid do not provide much in the way of conditioning (especially coconut). The combination of high levels of Lauric and Myristic acids in coconut oil surely account for its great lathering properties!

 

Another Version:

If you'd like another way to study the numbers and choose your oils, here is a different look for the above information:

Fatty Acids:
Lauric
Linoleic
Myristic
Oleic
Palmitic
Ricinoleic
Stearic
Iodine
Properties:
hard bar
cleansing
fluffy lather
conditioning
hard bar
cleansing
fluffy lather
conditioning
hard bar
stable lather
conditioning
fluffy, stable
lather
hard bar
stable lather
lower numbers mean
harder bar
Oils

Almond (Sweet)

---
8-28%
---
64-82%
6-8%
---
---
93-106

Apricot Kernel

---
20-34%
---
58-74%
4-7%
---
---
92-108

Avocado

---
6-18%
---
36-80%
7-32%
---
1.5%
80-95

Castor

---
3-4%
---
3-4%
---
90%
---
82-90

Cocoa Butter

---
3%
---
34-36%
25-30%
---
31-35%
33-42

Coconut

39-54%
1-2%
15-23%
4-11%
6-11%
---
1-4%
<10

Canola/Rapeseed Oil

---
15%
---
32%
1%
---
---
105-120

Corn

---
45-56%
---
28-37%
12-14%
---
2-3%
103-130

Cottonseed

---
52%
---
18%
13%
---
13%
80

Emu Oil

---
14%
0.4%
50%
21%
---
9%
75

Flax/Linseed

---
7-19%
---
14-39%
4-9%
---
2-4%
105-115

Grapeseed

---
58-78%
---
12-28%
5-11%
---
3-6%
125-142

Hazelnut

---
7-11%
---
65-85%
4-6%
---
1-4%
90-103

Hemp Oil

---
57%
---
12%
6%
---
2%
166.5

Jojoba

---
---
---
10-13%
---
---
---
80-85

Kukui Nut

---
42%
---
20%
6%
---
---
155-175

Lard

---
6%
1%
46%
28%
---
13%
43-45

Macadamia

---
1-3%
---
54-63%
7-10%
---
2-6%
73-79

Mango

---
1-13%
---
34-56%
3-18%
---
26-57%
55-65

Olive

---
5-15%
---
63-81%
7-14%
----
3-5%
79-95

Palm

---
9-11%
---
38-40%
43-45%
---
4-5%
45-57

Palm Kernel

47%
---
14%
18%
9%
---
---
37

Peach Kernel

---
15-35%
---
55-75%
5-8%
---
---
108-118

Rice Bran

---
32-47%
---
32-38%
13-23%
---
2-3%
105-115

Safflower

---
70-80%
---
10-20%
6-7%
---
---
86-119

Sesame

---
39-47%
---
37-42%
8-11%
---
4-6%
105-115

Shea Butter

---
3-8%
---
40-55%
3-7%
---
35-45%
55-71

Soybean

---
46-53%
---
21-27%
9-12%
---
4-6%
124-132

Sunflower

---
70%
---
16%
7%
---
4%
119-138

Tallow

---
2-3%
3-6%
37-43%
24-32%
---
20-25%
43-45

Wheat Germ

---
55-60%
---
13-21%
13-20%
---
2%
125-135
 

***** If you'd simply like to print the above table by itself for reference, here's the link! Properties of Oils Spreadsheet.

Here is another Oil Properties Chart generously offered by Shelley of the Cansoap list. It's probably a bit easier to read than mine! ...

"I've got these from several sources, and sometimes have just averaged them as I just use this for reference. If anyone has current fatty acid values and wants to help keep this file updated for our Cansoap group, please contact the listmom at cansoap-owner@yahoogroups.com¬ " Thanks! Shelley

Return to Top of Page

 

How much liquid?

Another question when designing your own recipe is how much water or milk to use (or whatever liquid you are dissolving your lye into). Another general rule of thumb is about a 1:3 ratio of water to fats and a 1:2 ratio if you are using milk. Many soapmakers like to cut back on their water as much as they can to shorten the curing time. If you are doing this, another suggestion by Liz Clouthier (another participant on the Latherings Board) is to calculate how much lye you need for your fats and use enough water to make a 30% solution. For a lot of the recipes on this site that use vegetable oils, I am using 24 ounces of cold water. If you want a bit more, 28 ounces works well. You end up with a firmer bar after 24 hours and it doesn't take as long for the soap to develop its hardness during cure. *Note: If you are using fragrance oils, it is generally better to use the higher water addition rate (close to the one recommended by Majestic Mountain Sage), unless you know the FO in question will not cause accelerated trace or thickening (some do this... but we still love to use them!).

Return to Top of Page

 

Scents

As a general rule of thumb, you will need from 1.5 to 4 ounces of fragrance or essential oil to scent an 8 pound batch of cold processed soap, depending on the strength of the oils used (2 T. is equal to one ounce of oil). True essential oils tend to be stronger and you will probably only need from 1.25 to 3 oz. of essential oil for an 8 pound batch (another rule of thumb is 1-2 tsp. essential oil per pound of soap).The strongest common essential oils are peppermint, rosemary, cinnamon, clove, spearmint and bitter almond. I probably left some out, but those are the ones you will use less of. Here are a few more rules of thumb in chart form, although you may not want to use this much. The first three EO recommendations with the asterisk (*) I believe were suggested by Majestic Mountain Sage. I like lower addition rates since I'm not into really strong smelling soap (see my preferences above). The last two are my suggested rates when using FO's. There are other folks out there that would use twice as much. It's up to your nose which you would like (.5 oz. = 1 T/Tablespoon.):

*Average Essential Oil

.7 oz. per pound of oils used in soap

* Strong Essential Oil (like cinnamon, clove, mint, etc.)

.4 oz. per pound

* Citrus Essential Oils

.9 oz. per pound

Average Fragrance Oil

.5 oz. (1 T./Tablespoon) per pound

Strong Fragrance Oil

1 - 1.5 tsp. per pound

 

Here are some helpful equivalents. Be aware that a "drop" can vary a bit... some being larger than others.. .

88 Drops = 1 Teaspoon
3 Teaspoons = 1 Tablespoon
1 Tablespoon = 1/2 Ounce
2 Tablespoons = 1 Ounce
16 Tablespoons = 1 Cup
1 Cup = 8 Fluid Ounces
1 Tablespoon = 15 milliliters
1 teaspoon = 5 milliliters
1/2 teaspoon = 2.5 milliliters
1/4 teaspoon = 1.25 milliliters
 
16 Drams = 1 Ounce
16 Ounces = 1 Pound
 

If you want to create some of your own blends, here's a great tip from the Latherings Soap Forum:

Again from Toni, of Countryside Soap: "Here is how I create blends. Take a coffee filter and fold twice in half so you have a nice pointed end. Now take oils that you would like to blend and a dropper. WRITE DOWN everything you do!!!! Try 3 drops for top note, 2 drops for middle note and 1 drop for bottom note (this just to get you started). Now place the coffee filter in a jar (I use a jelly jar). Place in your cabinet and check it in a couple of days and see how you like it. You might want to go back and a drop of this or that. I write everything down on a label and place on jar."

Here's another link posted by Jules on Latherings... it describes many famous perfumes and what their "notes" are. Might be a good study for those who want to experiment with mixing scents: http://www.parfumsraffy.com/notes.html.

Return to Top of Page

 

Creative Coloring

(Most of this is repeated from the "Where to Find Ingredients" page):

Candle color works very well for soap when mixed into the fats before the lye solution is added (if it's wax based - melted first, separately, in a few tablespoons of the fat and then poured into the rest of the melted fat). You can find these at a hobby store or from a mail order company specializing in candlemaking supplies . Some people use CRAYONS in the same way, but it takes more since they are rather dilute and you don't always get the end color you are expecting. Some experimentation might be in order. Generally I will suggest you use 1 to 3 regular crayons for the size of the recipes you will find on this site, depending on how strong a color you desire.

Here's some good info from Rachael Levitan (the queen of experimentation) on which crayons do and don't work!:

The only crayons that work are CERULEAN blue, yellow, orange, neon pink (from the neon box), brown, black and white... so you have to mix your own from these.

Prussian blue and red DON'T ...so purple, reds, violet-reds, burgundies, navy, blue, midnight blue, green (yellow and Prussian blue) and anything with red or Prussian blue (just blue in crayola language) don't work, so all the violets are out too. (I've heard from a couple of people that they've gotten a nice pink color with red crayon. May be that the brands vary and some will work...Kathy M.)

Any color made with the Cerulean blue is great, the blue-greens, teals, forrest green, jungle green... and I mix them - or the Cerulean blue with a yellow for a great bunch of green variants. Only neon pink works for pink, and added to Cerulean blue, makes lavender.

Here are a few colored soaps to illustrate what can happen when you are not sure of the results! The one on the left used a small amount of purple candle dye and was about what I was wanting. The middle bar was colored with four crayons...2 teal blue and 2 blue/green, which I now know work just fine! (My previous experience with one navy blue made me think I just needed more.) Yipes! The yellow one on the right was colored with one cube (1/4 pound) corn popping coconut oil...which is colored with beta carotene. I think one or two PATS or tablespoons would have given me the color I actually wanted. I post these for your education! :-)

 

Easter Egg Colored Soaps?
 

Liquid food colorings are not very effective when coloring soap and will tend to fade in storage. Liquid chlorophyll is supposed to be nice and also natural cosmetic colorants, such as those you can purchase from the Pigment Lady. I have not tried these yet. Certain spices can be used for coloring, particularly Turmeric. It will look like pumpkin pie when first poured, but changes to a nice warm beige after the soap sets up. I don't use any more than 1/2 to 1 teaspoon per batch. Here are some other suggestions...you can use up to 1/2 teaspoon per pound of soap if you like, depending on desired shade. Mix the powder into a bit of the soap and the mix that back in to the rest of the batch. Here are the colors:

Cayenne Pepper - Salmon color
Cinnamon Powder - Beige
Cocoa Powder - Coffee to Brown color
Curry Powder - Yellow Peach
Paprika - Peach
Turmeric - Golden Yellow
Dark squares of Cooking Chocolate - Brown
Liquid Chlorophyll - Light Green
 

Just remember with color in soap that it will look much darker and warmer when poured than after it sets. Think of how fat changes from gold to white and you can guess how your color can change in appearance and lighten up (and sometimes change shade). If you hit on something you like...WRITE IT DOWN! :-)

Here's some great inspiration on using natural substances for coloring from the Latherings Soap Forum.

From Rachael: "I have good luck with yellows, golds, tans, browns, oranges, greens, yellow-greens, pinks, salmons, greys and whites. I have no luck with natural purples, or blues. The powders can be mixed into the raw soap, into the lye water when hot, infused into the oils and strained, or mixed into a portion of the raw soap, and swirled into the rest of the soap, for designs. They vary from leaving pinpoint color dots throughout the whole block of soap, to simply staining the whole block of soap, to dramatic swirls and can look awesome. Start with a teaspoon to a pound of fats, alot of them are mixed to achieve a certain range of color. The reds-pinks-reddish tans-salmons are cinnamon, paprika, some ground rose petals(some go brown), pink clays. The yellows-golds-to tans are milk soaps (nonfat milk instead of water), turmeric, calendula, peanut oil soap, olive oil soap, beta carotene is tiny amounts. The tans-browns slippery elm(which I love because it smells sweet and agreeable), cocoa powder (which will have a dirty lather, but an awesome color, and cocoa butter soap just aches to have cocoa added to it), alot of the ground roses and dried flowers turn brown, cloves. The greens are baby food spinach (strained) gives a clear celery green, chlorophyll from grass clippings, seaweed, sage, green clays. The white is titanium dioxide, its all natural, just doesn't sound like it. Orange is baby food (pureed) carrots, beta carotene in small amounts, milk soap in high temp. range, (with whole fat, not non-fat, cows milk)."

From Sandy: " I ordered some purple soap colour from cranberrylane.com out of Coquitlam, B.C. I got the ground rattanjot which is from an East Indian herb (I think), and a liquid form called "passion for purple" which is probably made by infusing oils with the ground rattanjot. I think I'll try making some of that myself. Anyway, I use 1 T. of liquid and 1/8 tsp. of ground in a 1 lb. batch. It gives a pale purple with purple speckles. Then I add passionflower FO and call it purple passion. Hope this is helpful. "

From Cindy: "I use alkanet root for purple, it will go from rosy purple to blue-purple depending on the ph of your mixture. You soak your main oil in it, I add one cup alkanet root to two cups olive oil, heat gently for a minute, then let sit for a few hours, then strain and incorporate in total weight of olive oil before adding lye. It will look bright red until the lye hits it! "

If you want natural sources of green in your soap (I'm talking "flecks" or pieces for texture), I'm told that dried parsley flakes and dried dill weed do a good job of holding up in soap and not turning brown. Fennel might work also (closely related to dill). Some folks like pieces of seaweed, but it smells pretty bad to me!

 

Salt and Sugar?: Some people have achieved good results by adding salt and sugar to their soaps in small quantities. Salt is reported to increase the hardness of the bar and sugar will improve lathering. I am not sure of exact amounts, but one person suggested using 3 T. of either one for a 6# batch. Do not try to add these to the lye solution. I know that in the case of sugar, if you do this, you'll end up with a taffy-like lump in the bottom of the container that you'll have to fish out. You should probably dissolve the sugar/salt ahead of time in a small amount of hot water and then stir it into the lye solution after the lye has been completely dissolved. If you use much water for dissolving the sugar or salt (and someone recommended this procedure for borax as well, if you use that), you should discount this from the water you are using in the recipe for dissolving lye.

March 16, 2001 - Here's a recent email I received on this subject and my response:

Subject: salting soap
Date: 02/19/01 11:37 AM
From: Bob McDaniel, Bobmc@cbpmail.net

Just a comment on adding salt to soap. A very few people today claim that salt helps harden a bar. Most that I know who have experimented have found no particular difference. There are of course historical reasons why salt was added to soap. Wood ash lye is mostly a potassium based solution of potash and so gives the softer potassium soaps. I believe that early American soapmakers usually made a soft soap which was stored in crocks. If they wanted to make a hard bar of soap, they would add a few handsful of salt to the soap kettle. This would have several effects. First of all, the salt was a source of sodium ions and this would cause formation of the harder sodium soap crystals instead of the softer potassium soaps. Secondly, depending on how they processed the soap, it was also possible to salt out the glycerin and water--make it separate from the soap which could be poured or skimmed off into flat molds and later cut into bars. -Bob McDaniel

Thanks for all the info on the use of salt in soapmaking. If you don't mind, I'll post your comments near that entry on the web page. I have tried this myself and did think it made the soap a little bit firmer, but certainly it is not as effective as if you used stearic acid for hardening purposes. It's not such a great thing that I add salt to soap everytime I make it... I don't. I'm also using a lot of coconut and palm in my base recipe so the soap is firm enough already. The idea is there for folks who want to give it a try and for some, it does seem to make enough difference that they do it (they are probably using very soft fats or oils for their base recipe). Kathy M.

This page last updated on 18 November 2003.
If you still have questions, please read through the information on the Troubleshooting Help page, MOST Frequently Asked Questions and Modern Procedures. More can also be learned through the Botched Batches and Soapy Success pages. Many common problems have already been addressed on the site and it's difficult for me to keep up with emails these days and get anything else done. If your question involves my looking up information that you can also research, or going over numbers and recipe calculations, I might not respond if in the middle of a project around our home and garden. I apologize for this, since I've enjoyed my correspondence with people and don't like to ignore emails of any kind. Thanks! :-)