Though spring is on its way, the air in Tokyo is dry and one of my friends tells me her skin needs moisturizing every day (at least) twice a day. Though a little late this season, I eventually got to make some milk soap in yet another effort to get all the goodness which a 100% natural bar of soap can offer.
When I began making soap and I was about to make my first milk soap, I followed the advice of other soapers and used the milk-in-lye method. It produced a wonderful bar of soap with a beautiful rustic brown color. At that point I was not taking pictures of the soaps I made but I did love the look and thought that it could not look more natural than that. I used the same method later when I began selling my soap but it did not sell well at the time. I got some feedback telling me that the color was not “attractive.” So I had to find a way to keep my soap both white and natural. I tried to keep the jar of lye in icy water when adding the milk but the soap still got beige not white. I did some research and eventually realized that adding the milk into the lye was the “problem.” It seems that the heat produced after mixing the milk into the lye scorched the sugars in the milk and the strong base damaged the molecular bonds of the milk protein. So I experimented and eventually got to discount the water for the lye solution and add milk after the soap reached medium trace. It does not matter what kind of milk I use, the finished soap always turns milky white.
Have a good week!