G
Guest
I've continued thinking about the revelations in a recent discussion here at SMF, that when you add superfats at trace the lye just eats them up exactly like any other fat or oil that was present when the lye was added. The conclusion of the other thread was that only a small part of the saponification had occurred by the time of trace, so adding more fat at trace is more or less superfluous and the additions might as well be put in at the beginning.
This means that if you're adding your precious jojoba oil or shea butter at trace, say perhaps 2 tablespoons ppo, and let's say your lye is discounted 5% (i.e. superfatting level set at 5%), that those two tablespoons added at trace will result in 0.05 * 2 T. = 0.1 tablespoons ppo in the final soap, IMO hardly worth adding considering the expense of those precious fats.
Unless anybody finds flaws in the reasoning above, it appears to me that adding expensive fats/oils at trace is a waste of time and money. However, this applies only to cold process. What I'm thinking is that anybody who wants these oil and fat additives present in their final product should consider using one of the other processes where additions are put in after the lye is totally used up. Then *ALL* of your additions will be actually present in the soap you are making.
So I'm considering either of the following:
1. hot process (I'm planning on trying crock pot hot process, CPHP)
2. hand milling which appears to be just another name for rebatching, except rebatching usually means you didn't plan on it, where hand milling means you meant to do it all along. (right?)
I note also that either of these processes will also stretch out your EOs and FOs by not exposing them to lye, and would probably help protect some other additives that are susceptible to lye damage.
So does my reasoning check out? That if you want your expensive superfats to be in the final product you should use either HP or rebatching/milling?
This means that if you're adding your precious jojoba oil or shea butter at trace, say perhaps 2 tablespoons ppo, and let's say your lye is discounted 5% (i.e. superfatting level set at 5%), that those two tablespoons added at trace will result in 0.05 * 2 T. = 0.1 tablespoons ppo in the final soap, IMO hardly worth adding considering the expense of those precious fats.
Unless anybody finds flaws in the reasoning above, it appears to me that adding expensive fats/oils at trace is a waste of time and money. However, this applies only to cold process. What I'm thinking is that anybody who wants these oil and fat additives present in their final product should consider using one of the other processes where additions are put in after the lye is totally used up. Then *ALL* of your additions will be actually present in the soap you are making.
So I'm considering either of the following:
1. hot process (I'm planning on trying crock pot hot process, CPHP)
2. hand milling which appears to be just another name for rebatching, except rebatching usually means you didn't plan on it, where hand milling means you meant to do it all along. (right?)
I note also that either of these processes will also stretch out your EOs and FOs by not exposing them to lye, and would probably help protect some other additives that are susceptible to lye damage.
So does my reasoning check out? That if you want your expensive superfats to be in the final product you should use either HP or rebatching/milling?