I've made my 2nd batch of CPLS paste and preparing to dilute, I've not added colors or Essential oils so far. I would like to know your thoughts on the following, - Can EO be added to the diluted soap directly, do I have to use a emulsifier? I generally try to stay away from adding chemicals which I don't understand the way how those are made. - In the previous batch I added water soluble detergent colors when stick blending, however it didn't stay evenly distributed in the diluted soap. I'm wondering what should be the correct method to add color & what type of colors to use. I have access to food colors, water soluble detergent colors and oil soluble pigment colors.