I just acquired a glass kettle (a Bellini BGK100 -
this one if it makes any difference).
The documentation says to let it cool for 15 to 20 seconds before refilling it.
Perhaps I'm superstitious about hot glass, but that doesn't seem anywhere near long enough to me.
Any thoughts? Has anyone got a similar glass water heating device and has practical experience how soon after boiling (and emptying) it can be refilled?