Rick Chappell wrote:
> If your tap water is about 10 degrees C (50 F), then put in 5/18 (about a
> fourth) of it and 13/18 (about three fourths) boiling. That will get you 75 degrees.


Here's what I've started doing (for greens, whites ...) :

Cold water in cup
Leaves floating atop
Add freshly boiled water

That's as fast and simple as I've ever come across (and I'm a true fan
of simple)