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Sorry if this has been covered, but I searched all topics on Superfat and couldn't find this particular question. (Cue person finding 6 identical topics I couldn't see)
I've made about 60 batches of CP soap now, small batches are 3 pounds, large are upwards of 9. My superfat rate can be anywhere from 2 or 3% to 20% (for a couple of 100% or nearly-100% coconut recipes). A co-worker also makes CP soap and we both have the same question: "What does superfat look like?" or, alternatively, "Where does the oil go?"
It's not like I see slimy oil on the surface of soap, whether it's 5%, 10%, or 20% superfat. But that oil supposedly doesn't saponify, so where is it? I do realize that the soap feels different, and surely has a much shorter lifespan, than store bought soap, but I can't say that I see oil slipping away down the shower drain. And from one batch to the next, they look and feel the same (unless it's a really soft-oil heavy soap that takes a long time to cure, and even then once it's hardened, it looks and feels no different than the coconut at 20% SF bars).
So why don't different soaps with different SF values look or feel different?
I've made about 60 batches of CP soap now, small batches are 3 pounds, large are upwards of 9. My superfat rate can be anywhere from 2 or 3% to 20% (for a couple of 100% or nearly-100% coconut recipes). A co-worker also makes CP soap and we both have the same question: "What does superfat look like?" or, alternatively, "Where does the oil go?"
It's not like I see slimy oil on the surface of soap, whether it's 5%, 10%, or 20% superfat. But that oil supposedly doesn't saponify, so where is it? I do realize that the soap feels different, and surely has a much shorter lifespan, than store bought soap, but I can't say that I see oil slipping away down the shower drain. And from one batch to the next, they look and feel the same (unless it's a really soft-oil heavy soap that takes a long time to cure, and even then once it's hardened, it looks and feels no different than the coconut at 20% SF bars).
So why don't different soaps with different SF values look or feel different?