I had this one cold at the gym tonight. At first I was unsure of how nutty matcha would be cold, but holy moly, it was delicious.
Again, 1/2tsp for a liter of water. I actually usually put it in my water bottle with a little water in the morning, then fill it the rest of the way up with cold water at the gym. Not sure, but I sometimes feel like giving the matcha time to stew in the cool water all day boosts the flavor. This one was nutty (natch), very pistachio-y, and even a hint sweet (no sugar involved!). Yum. I think I prefer this one cold, even.