Simply put the bar of soap into hot water and shake. It works better if you do this under running water. It works best when you use the soap shaker ( available here )
As with any soap bar it should be kept as dry as possible between uses. If using soap on its own, store it on a free draining soap dish. However, if you’re using the soap shaker, you can hang it up to dry.
This is a really basic recipe that contains simply coconut oil, distilled water, and sodium hydroxide. And when the soap is fully cured there’s no trace of the sodium hydroxide.