and would also mention: this cup is "unbreakable". I have "connected" me at the stove and asked instead to zero to nine. a residual gravy is completely charred and got stuck in a rock-hard layer. I had then the pan with dishwasher detergent and water boiled again - the phone rang, the man wanted what the dog had to get out, etc. - and then cooked the pan who knows how long dry. I have just soaked with water, washed and - believe it or not - it is like new!
my next cast iron is determined again dust!