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keisanHigh-precision calculations for everyday life and work

Preparing Water at the Optimal Temperature for Coffee Brewing

Author: DareroExecutions: 946

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Calculate the amount of tap water to add to boiling water to lower the temperature to the optimal level for brewing coffee.
This calculator determines how much tap water to add to boiling water (90–98°C, depending on the kettle) to reach the ideal temperature (80–92°C).
1. Select the initial water temperature and the roast level of the coffee beans.
2. Enter the temperature of the tap water.
3. Calculate!
* We recommend saving input value templates.
Example: Summer Iced Coffee (kettle 98°C, French roast, tap water 25°C), etc.
Winter Dark Roast Hot Coffee (kettle 98°C, Full City roast, tap water 10°C), etc.
What is the initial amount of hot water?
cc
What is the initial temperature of the water?
℃
How dark are the coffee beans?
(The ideal brewing temperature is subjective.)
℃
What is the temperature of tap water?
℃
The amount of tap water to mix in is cc
The water temperature used for brewing depends on the roast level of the coffee beans—it’s a matter of personal preference.
(I’m making this for myself.)

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