Hot process salt bar

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From the Yukon living in Alberta
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How does this look. Using 1/2 coconut milk and 1/2 frozen pumpkin puree. Adding 2 T pumpkin puree, yogurt and salt after cook.
 
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Although the cleansing number is way too high for my skin, it looks like a nice recipe. Also, even though you added the ACV after the cook, hopefully you adjusted the lye calculation for that. My understanding is that even after saponification is complete, the lye molecules can still be "rearranged" by addition of post-cook oils, acids, and other substances that react to NaOH.

Anyway, how did it turn out? Did you an any FO or EO to create the pumpkin spice scent?
 
I put the image in the first post. Would it be alright to delete all the posts about not seeing the image?
 
I did get a few into cupcake molds then squished the rest into a mold. I let it cool and it was very crumbly and wet from spraying the sides of the crockpot to avoid hard bits. I ended up putting it back into the crockpot to remelt and back into the loaf mold. Cut it while still very warm and it cut fine. My hands don’t feel dry with it and it has nice creamy bubbles.
Being a hot process(x2😁) what would be the drying time?
 

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Although the cleansing number is way too high for my skin, it looks like a nice recipe. Also, even though you added the ACV after the cook, hopefully you adjusted the lye calculation for that. My understanding is that even after saponification is complete, the lye molecules can still be "rearranged" by addition of post-cook oils, acids, and other substances that react to NaOH.

Anyway, how did it turn out? Did you an any FO or EO to create the pumpkin spice scent?
I used pumpkin spices in the olive oil and 1T cinnamon
1T orangex10
1/2 T patchouli
1/2 T clove
The rebatch I added about1/4 cup instant coffe
 
I used pumpkin spices in the olive oil and 1T cinnamon
1T orangex10
1/2 T patchouli
1/2 T clove
The rebatch I added about1/4 cup instant coffe
Yikes, was that ground cloves, or clove EO? If the latter, then double-check the safe usage rate for that EO blend on EOCalc.com. Clove EO is a very "hot" oil that can cause serious skin burns. Even the dry spices in soaps can be super irritating to sensitive skin.

I'm sure these smell fantastic, but for future, it's really important to measure EOs by weight, not volume, and to make sure the blends are skin-safe.

The cure time is the same or longer for hot process, because more water is used. Lots of folks are confused about that because they conflate saponification with curing. Saponification is done at the end of the cook for hot process, and usually within 72 hours for cold process. But curing is about water evaporation and the soap becoming milder over time - and that doesn't change based on how the soap has been made.
 
Last edited:
Although the cleansing number is way too high for my skin, it looks like a nice recipe. Also, even though you added the ACV after the cook, hopefully you adjusted the lye calculation for that. My understanding is that even after saponification is complete, the lye molecules can still be "rearranged" by addition of post-cook oils, acids, and other substances that react to NaOH.
Wait, I've never heard this before. So you're saying after full saponification, there is still active lye?
 
Wait, I've never heard this before. So you're saying after full saponification, there is still active lye?
Not exactly. What I understand from things shared by Kevin Dunn (the soap scientist guy) is that the lye molecule (or more accurately, the component that separated from the lye molecule) that is now attached to a fatty acid, can still separate from that fatty acid and react instead to other substances that are present, including different fatty acids, or other forms of acid such as citric acid and acetic acid. That's why the term "post-cook superfat" is a bit euphemistic. By adding something post-cook, you evidently increase the likelihood of it remaining in its whole state, but you cannot guarantee it.

It's entirely possible I didn't say that correctly, so hopefully @DeeAnna can chime in to clean up after me. :)
 
Yikes, was that ground cloves, or clove EO? If the latter, then double-check the safe usage rate for that EO blend on EOCalc.com. Clove EO is a very "hot" oil that can cause serious skin burns. Even the dry spices in soaps can be super irritating to sensitive skin.

I'm sure these smell fantastic, but for future, it's really important to measure EOs by weight, not volume, and to make sure the blends are skin-safe.

The cure time is the same or longer for hot process, because more water is used. Lots of folks are confused about that because the conflate saponification with curing. Saponification is done at the end of the cook for hot process, and usually within 72 hours for cold process. But curing is about water evaporation and the soap becoming milder over time - and that doesn't change based on how the soap has been made.
I did check on eo calc and used less then what was in the green. I used spoon measurements because I don’t have a scale for small stuff(next on my shopping list). What little bit I used wouldn’t even have moved the scale.
 
Not exactly. What I understand from things shared by Kevin Dunn (the soap scientist guy) is that the lye molecule (or more accurately, the component that separated from the lye molecule) that is now attached to a fatty acid, can still separate from that fatty acid and react instead to other substances that are present, including different fatty acids, or other forms of acid such as citric acid and acetic acid. That's why the term "post-cook superfat" is a bit euphemistic. By adding something post-cook, you evidently increase the likelihood of it remaining in its whole state, but you cannot guarantee it.

It's entirely possible I didn't say that correctly, so hopefully @DeeAnna can chime in to clean up after me. :)

Good job of explaining, Ali.

There are two general types of molecules: ionic and covalent. An ionic molecule is like a stack of child's legos. If you bump a stack of legos, the legos will fall apart. A covalent molecule behaves more like legos that have been glued together. If you bump a stack of glued legos, the legos stay stuck together and won't come apart.

Soap is an ionic molecule. That essentially means the sodium head of any soap molecule is not strongly and permanently attached to the fatty acid tail. The sodium part is able to break away from the fatty acid part and then it is free to bond with more desirable ions.

The acetate ion part of an acetic acid (vinegar) molecule is more desirable than the fatty acid ion of a soap molecule. Ditto for the citrate ion part in a citric acid molecule.

It's not something you can prevent. Any time you put vinegar or citric acid (or other similar acid) in soap, the sodium ions will inevitably bod with these more desirable acidic ions. If there are more sodium ions than acidic ions, the left-over sodium ions will bond with the fatty acids to make soap, but only if there are no more-desirable acidic ions to bond with.

The sodium ions will do this whether you add vinegar or citric acid at the beginning of soap making, when the soap batter is at trace, or after the soap is fully saponified.
 
Thank you, @DeeAnna - those extra details make all the difference for me to understand the chemical process, and thus be able to craft a better explanation in the future.

Of course, no good deed goes unpunished 😁 so hopefully you don't mind one more question. If you were to soak a cured bar of soap in vinegar, my understanding is that the separation of the ionic molecules will take longer than it would if you were to add the vinegar to soap that is still in the neat phase, for instance, HP soap that is still pourable in the crock pot. In other words, the bar soap would have to soak in vinegar for a bit before the separation would start to occur, whereas the neat soap would have a more immediate reaction. Is that correct?
 
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