Lye Calculators 101: Why Superfat Percentage Matters More Than You Think | FormulaAlchemy
Lye Calculators 101: Why Superfat Percentage Matters More Than You Think Ask most soap makers what superfat means and you’ll get the right general answer: extra oil left unreacted, for skin-friendliness. Ask why they chose 5% instead of 8%, and the answer gets a lot vaguer. That gap — between knowing the term and understanding […]