How do you measure the temperature of boiling water when you brew coffee? I always use an analog thermometer. I think it elegant.
Using the kettle cap, you don't have to remove kettle cap and the boiled water doesn't get cold.
Please try it!
The Size of Thermo meter Hole
The diameter is about 6 mm.
Target Coffee Kettle
• Hario
Hario V60 Buono Coffee Drip Kettle,1.2L and 1.0L
Reliability
I've made this cap one time. I'm sure it works all right.