When you’re travelling, you sometimes have to boil water to purify it. For tea, that’s obviously not ideal, especially as some teas need to be infused at 50°, 70° or 80°C. Here is a simple method to reach the correct water temperature for your tea (this will be marked on the packaging of any decent tea merchant). When your water has boiled, pour it into a recipient. The water temperature will drop by 9°C. Then pour it into another; it will drop by 9°C again. And so on.
The right infusion temperature
4 October 2019