### Understanding Lye/Water Calculation in Soap Recipes - The ...

Apr 12, 2012·If you have 100 gr of lye solution in that bowl, there is 25 gr of NaOH and 75 gr of water. OK, got the concept? Now how do you get your lye solution to be the concentration you want? Well, you could use a lye calculator that can figure it out. The one in Soapmaker 3 Software will do the math for you. So will the Soap Calc …