Dilute! Dilute! OK!* But how much? Here’s a quick reference. None of these soap dilutions are meant to be exact amounts. If what you’re cleaning is really dirty or your water is really hard, then you may want to use more than the specified amount. That said, these Pure-Castile Liquid Soap dilutions should get you started.
Dilutions Cheat Sheet for Dr. Bronner’s Pure-Castile Soap
by Lisa Bronner