Hi, we are about to make out first batch of soap this weekend and I'm happy that I understand the lye to fat ratios working on the sap tables for the fat/oils we are planning to use. My question is regarding the quantity of water to use. I've seen a number of recommendations stating a .38 water to fat ratio and others stating a 27/73 parts lye/water ratio both return a value within 60ml or so of each other for a batch of soap containing just over 2kg of fat. Does anyone have any advice on working out the correct/best/easiest way of working out the amount of water to be used, and what the affects of using too much or too little water may have.
PS. How much essential oil would be the norm to add for this amount of soap. I think a combination of 2 oils will be used to keep it simple.
Many Thanks.
PS. How much essential oil would be the norm to add for this amount of soap. I think a combination of 2 oils will be used to keep it simple.
Many Thanks.