This time, my goal is to make a milk soap. Milk has tons of nutrient in it and is too good to go to waste. In order to do that, I have to freeze the milk first, so the temperature will be kept under control when interact with NaOH, I really want to do all my soap in cold process just because I hate wasting good nutritious value that I spent so much time and money on :) Again, the ideal temperature should be kept under 104 F or 45 C, I used the same ingredient like my last soap except that I used organic whole milk instead of water. Many people might think using milk will produce white-ish color soap, but in contrast, the chemical reaction between milk and NaOH will give brown color intead. After one month of curing the soap, I now realize what my friend meant by milk soap is more hydrating, because even after one month of curing, I can still feel moisture when I touch the soap. The regular water base soap will still hydrate your skin, it's just not as powerful as the milk soap.
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