Salt soap bars - BigOven.com
There are three general traditions when it comes to the amount of salt used in salt bars: 100% of the soap amount - that is, if your recipe makes 2 lbs. of soap, you add in 2 lbs. of salt. 100% of the oils in the recipe - that is, if your recipe has 24 ounces of oil in it, you add in 24 ounces of salt. Some lesser amount of salt - I know soap makers who will do 50-70% of the total oils and are happy with their bars.