by chang00 on Tue Dec 08, 2009 2:23 am
No, it does not whistle.
It does not create a constant water temperature. It does offer easy hand control in drip coffee. Due to its long, narrow, spout and comfortable handle, the speed and pour of the water stream can be controlled more easily, to achieve, for example, a three minute extraction time. It is a good complement to the Hario V60 drip cone.
Additionally, assuming at sea level and the water boils at 100C, by the time the water exits the spout, it will be a tad cooler than 100C, as not to scald the coffee. Because of this, and to minimize excessive heat loss, the spout probably should be at about 2 inches from the coffee ground during the pour.
As tedious as it may sound, it adds another fun factor to coffee enjoyment.