I like warmed milk in my coffee. Every morning I heat milk in the microwave in a measuring cup, so that I can pour the exact amount of coffee I like into my coffee mug.
I’d love to use a permanant marker to mark a line inside the mug at the exact point of milk I use, so that I can heat the milk in th mug and save washing the measuring cup.
Will permanent marker stay on a ceramic mug through dishwashings? And not come off from the hot coffee?