So there we are in this factory china shop, buying lasagne trays. Not a particularly interesting passtime. But I was surprised to see a new invention: crockery pots that you can use on an induction hob. Apparently they are especially resistant to thermal shock, and you can use them on any kind of heating appliance. We bought one.
The company has a patent on the material. (French for patent: un brevet, that is also the same word for diploma or certificate).