Liquid castile soap making is a truly satisfying soap project! This handmade, 100% olive oil liquid soap recipe is gentle on the skin, multipurpose and easy to make with this simple recipe and the process I demonstrate in this video. This liquid castile soap recipe is also great for face wash and it's not a bad shampoo either! (if you're into handmade soap shampoo that is). If you are new to liquid soap making, this would be a great place to start :)