ceramic mugs in the microwave: some hot, some not
I'm guessing this is the best forum on which to ask this weird question. When I heat hot beverages in the microwave, certain mugs stay reasonably cool as the liquid inside gets hot. Other mugs get so hot I can't pick them up even if the beverage isn't hot yet. Is there anyone who knows the possible differences in the makeup of the mugs that would cause this? They're all supposed to be microwave safe.
When I use the mugs that get hot, I've taken to heating the beverage in a Pyrex measuring pitcher, but I still wonder what causes this and what it says about what I'm drinking from.