I love the gif!
I used to make our toothpaste too and the base was coconut oil. Then I read that the coconut oil is really bad for drains and city pipes. We had it start to build up in our drain pipe because we weren't running a lot of hot water through our sink. But even then, if you're in the city you might be able to run enough water to clear it from your own pipes but because the oil solidifies it can build up before fully washing away. Once we learned that we started spitting either outdoors or in our composting toilet. -Aimee