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Cornstarch doesn't seem to add that much chalkiness. If you feel ZnO is good for your soap, I'd skip the TD. Stearic isn't really an extra, it turns into soap. I never used SL, can't comment on that one. But alternatively, you can add a little sugar and maybe a tiny bit of glycerine...

I've used 1.5t ppo, and seems too little. Next time, I'll try a little more and likely add another layer of scrubbiness (like sugar or loofah or something).

No, they wouldn't. However, it's so little of them I'm not sure it makes much difference. I was thinking myself recently about this. Soap spends all it's life in tap water, after all (assuming very few of us use distilled water to wash ourselves). Except that certain minerals are known to...

Did you add alcohol together with lye or after cooking ? First time I hear about this method and curious about it.

To my knowledge, commercial soap has the glycerine stripped off. Also, I have a theory - could be wrong that it has a lower superfat.

Could be wrong, but I believe the co-op forum is found by people searching for co-ops.

The usual rule I follow is waiting 3-6 weeks for cure. 1 week is usually not enough

Yes, the oils can be heated up to few hundred degrees, at which temperature the lye water boils copiously. Better use a thermometer.

Your problem is the 20% superfat, which may be a bit too much. I've tried something similar with a lower superfat and it was a nice soap. But I'm guessing yours will still harden and make a decent soap - with less lather. Not sure it's possible to rebatch salt soap, unless you wash away...

From what I hear, coconut won't retain the scent. In my experience, adding small amounts of clay to soap doesn't make it drying (under 2 tsp ppo).

Wanted to say that I find difficult to hold the umbrella and stick blender at the same time. Soap prefers dryness, but if you soap today and it rains through next week, it will be the same result.

If there is a good reason to warm molds, it will likely be valid for all kinds of molds, wood, plastic or otherwise. However, I never warmed anything. Which brings me to the question: what does warming molds do for the soap ?

I've made a 90% coconut 10% castor, and around 20 superfat. Increasing the superfat will balance the drying nature of coconut. From what other people say, maximum of castor is around 10%, except for shampoo bars. Isn't castor more expensive than olive oil ? If price wasn't a barrier...

Works for CP aswell, provided that trace is relatively thin. Actually, my usual antibubble strategy is thumping the soap batter before pouring to make the bubbles rise and spraying with alcohol to kill them. Works everytime.

Yes, sadly ... The results are still interesting, though. Maybe your measurement error is increasing with water content decreasing. Personally, I was able to obtain a lower value by rebatching soap together with fruit juice. With a soap with a pH of 8.5 I would be worried about spoilage...

I'll tell you how - they are measuring it wrong. If I had to guess, they are using pH strips, and some of them can be extremely unreliable. Pure soap has a pH around 10. Are you using pH strips aswell? What brand name ? For liquid soap, you can easily adjust pH by adding citric acid and...

Yours is a different issue. Soap can sweat sometimes, and turn out perfectly fine after cure. I have only used honey few times, but every time it has caused sweating. I find sugar easier to work with. Wine for lather ? Never heard of that one ...

Personally, I would test pH with a more reliable method. Zero superfat is still risky. And if you decide that the soap is safe, you should still test how it behaves during use and see if it's not too harsh. Also, you can run it again through the calculator, accounting for the fat in the...

I remember butter has a different SAP. Beware of the cheesy perfume which lingers onto the skin.

You can search the forum for acne. I don't have a recipe, but from my research it seems the same doesn't work for everybody. Among the ingredients other people have tried are charcoal, pine tar, salt, neem oil, clay, sulfur, aloe, zinc oxide, essential oils like tea tree, rosemary. A...