Cottonseed Oil

Although some soap makers use cottonseed oil to make soap, I recommend that you do not. Unfortunately, there are several negatives that cause this oil to be unappealing for soap making. We will talk about those negatives below.

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Here are the approximate fatty acid, iodine, and SAP values for cottonseed oil:

* below fatty acid values are approximate and may vary from source to source...

Click here for an explanation of these numbers.

Lauric	0%
linoleic	52%
linolenic	1%
Oleic	18%
Palmitic	18%
Ricinoleic	0%
stearic	13%
myristic	0%
Iodine Value	108
SAP Value Sodium Hydroxide	.138
SAP Value Potassium Hydroxide	.194

Here are some of the characteristics that you will see in your soap when using cotton seed oil for soap making:

Bubbly lather	No
Creamy/Stable lather	Yes
Cleansing	mild
Conditioning	Yes
Hardness	No

What exactly is cottonseed oil? It's a vegetable oil and a byproduct of the cotton industry that is extracted from the seeds of the cotton plant. It can be used for cooking, and for making soap.

Cottonseed oil is extremely vulnerable to rancidity. Some soap makers report a quick onset of DOS (dreaded orange spots) caused by the oil becoming rancid. If you use strong synthetic preservatives instead of the weaker natural preservatives this will not be too big of a problem for you. If, however, you want your product to remain 100% all natural then using cottonseed oil is almost out of the question unless you know your product is going to be used right away.

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There's also a very good chance that your cottonseed oil was exposed to harmful pesticides. Everyday there are more and more farmers that are starting to "go organic", but the cotton industry, is not quite there yet. Try as I might, I cannot find any organic form of this ingredient that ensures the oil is 100% pesticide free.

As a general rule, you don't want to put possible carcinogens (like pesticides) on your skin! Maybe I'm a little extreme about this issue, but I feel it's better to be safe then sorry. One thing to keep in mind: if you are selling your soap, it will become a much more appealing product if you can label it "Organic" or "No Pesticides or Synthetic Chemicals Used"

Finally, this particular oil takes a longer time for saponification to occur. If you're the type of soap maker that uses a stick blender this shouldn't be a problem for you, but if you like to stir your batches by hand, be prepared to wait a bit longer then normal to reach trace.

So, with all these negatives, are there any positives at all when it comes to cottonseed oil? Actually... Yes. It does moisturize relatively well, has good conditioning properties, and produces a nice lather. I, however, feel that these small pluses do not even come close to outweighing some of the negatives.

After all, you can just use avocado oil or olive oil if you're looking for a moisturizing ingredient and coconut oil or castor oil if you want an improved lather. There's really no need to use cottonseed oil at all!

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Cottonseed Oil

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