I brew sencha and long-jing at around 135, I have a similar iron cup and I've used it sometimes, it has a very nice texture and weight, I kind of like it and at this temperature it doesn't get too hot. I still prefer glass cups, though, because this cup (as well as thick ceramic cups) steal too much heat from tea and this is not so good for the taste.
The only thing I'd use it for regularly would be a strong black or flavoured tea that I'd let stand in a pot until it cools off enough and then pour 3/4 of a cup so that outer top edges are relatively cool.
May 17th 10 1:19 am
Joined: Nov 13th 09 3:16 pm
Location: Guilin, Guangxi China