Alaskamike
Well-Known Member
You could scrub it off with Coconut Oil ....Yes. Could be. Won't come off with water and nylon brush.
Haven't tried vinegar yet.
...just kidding.
I get mineral deposits from my well water on the shells. I scrub it off with a stiff toothbrush & a small amount of Apple Cider Viniger.
Then ...I apply coconut oil. ...
( just kidding , only sometimes )