I'm looking for my peeps who've made pine tar soap. The interwebs give me conflicting information that pine tar saponifies, does not, does too, etc. I'm gathering from this Forum that pine tar does NOT saponify. Say I want a recipe with 20% pine tar. Do I then calculate a recipe volume at 80% of my mold, and just plug in my normal oil mixture and lye solution? Thanks for your help.