srw
It's a bit more complicated than that...
We went to a roastery for a coffee day a couple of years ago. Great fun, even if it did leave me high as a kite with the caffeine.Can any fellow coffee nerd tell me the correct temperature for the water when you pour it into a cafetiere? I usually try 93C and measure it with a digital thermometer, either on the way up to the boil or on the way down. (Yes, I'm sad.) I believe that you can buy kettles that stop heating the water at a temperature below 100C but that would just add to general kitchen clutter.
Their recommendation was 93C. For an ordinary kettle, the advice was 50g coarse coffee to 850g water. Start a timer when the kettle boils, pour over the water after 45 seconds and plunge after another 4 minutes.