Tea. Hot?

Conventional wisdom is that the cup for the tea should be pre-heated, and possibly also the tea-pot, too, so that the tea does not cool off too much when poured into the cup, or that the brew happens at a more consistent temperature. This somewhat assumes that the vessel has some degree of insulation; a metal cup or teapot may not hold a pre-heating for very long. This conventional wisdom also has a Temperate or more pole- or mountaintop-wards bias; in Tropical climates the tea is sometimes poured between metal cups too cool it down enough for drinking, a warm climate reversal of a cold climate "heat the saké up before serving".

Not that this matters much, unless you want a specific temperature for the tea (cold can be fine) or are following a ritual action of the elders.

Stravinsky - Ritual Action of the Ancestors