Originally Posted by shaan
Has anyone tried this method? I tried this method but it did not work well when i wanted to make the soap colorful. I don't have a big oven,so placing containers in it is not possible. Do we need to cook it completely before adding yogurt? Any alternative to yogurt?
A friend of mine does beautifully marbled soap with this method using a 3 or 4 color in-the-pot swirl (one color being uncolored soap). However, even with the yogurt you might have some trouble with the colors if you don't have the means to prevent the soap from cooling off too quickly.
You have to cook it to a smooth consistency, but no you don't have to cook it completely. Any HP will just as happily finish saponifying in the mold if you take it most of the way there. If you mold it early, you do lose the ability to add the superfat of your choice and completely control the outcome, but that is an overrated feature of HP.
Yogurt, for reasons unknown, is very effective for fluid HP. I don't think anything is known (yet) to be as effective that doesn't have some drastic effect on the soap. One soapmaker demonstrates a fluid HP using glycerin and sugar syrup, which makes a translucent and soft/rubbery soap. I don't recommend it. Though I'm personally not a fan of dairy products in my soap, it does come out just fine with the yogurt.
Sodium lactate is also known to make HP more fluid. You can use both SL and yogurt if you like.