On Mon, 01 Nov 2004 17:01:18 -0800, Top Spin wrote:

Can anyone recommend a good thermos (4-6 cup capacity)?

I think that you also need to look at the quality of the tea: Some of my
teas become cloudy (opaque) after a while and those do not keep long at an
elevated temperature. Cloudiness is always connected to fine dust in the
liquor and this dust seems to influence the quality. On the other hand, I
have used very clean Oolongs many times and kept them in a thermos for 5
or more hours, without a significant change in taste.
Discarding the first few seconds of a brew might possibly help, it may
remove particulate material.

JB