I use virgin coconut oil because I like the extra coconut scent, but you can use whatever coconut oil you like.

The firmness of the coconut oil has to do with the temperature. It must be fairly cool in your house.

I made your Peppermint sugar scrub but I am having a issue with it. I used the solid coconut oil and when I blended it up it was nice and soft, like "wet sand" as you say. The problem is that it goes back to being very hard after it sets up. I have to use a spoon to scrape it out of the jar or run hot water over it for a few minutes or put in the microwave for 15 seconds to soften it up. I've never used coconut oil before and at first I thought maybe what I bought was old so I bought another jug and it is hard as well. Any idea why it goes back to being hard and what else can I do to keep it soft?

I haven't tried that.