FOOD & COOKING CALCULATOR
Coffee
A precise tool.
What is the Coffee & How does it work?
Understanding coffee extraction begins with the coffee‑to‑water ratio. A common guideline is 1 g of coffee to 15–18 g of water, which balances flavor intensity and clarity.
The brewing temperature influences solubility; water between 90 °C and 96 °C extracts desirable compounds while avoiding bitterness. Adjusting time further refines the profile.
By calculating the exact water weight from the desired coffee weight and ratio, home baristas can reproduce consistent results. The formula below illustrates this relationship.
W_{w}=C_{c}times R
W_w = water weight (g)
C_c = coffee weight (g)
R = ratio (g water per g coffee)
C
R = ratio (g water per g coffee)
Parameters
Result
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Frequently Asked Questions
What is the ideal water temperature for brewing coffee?
The ideal water temperature for brewing coffee is between 90°C and 96°C to extract desirable compounds without bitterness.
How do I calculate the amount of water needed for my coffee?
To calculate the amount of water needed, multiply the weight of your coffee by a ratio of 15-18 grams of water per gram of coffee.
What happens if I use too much water when brewing coffee?
Using too much water can dilute the flavor and result in a weaker cup of coffee.
How does brewing time affect the taste of my coffee?
Adjusting brewing time allows you to refine the coffee’s profile, balancing between under-extraction (tasteless) and over-extraction (bitter).
Can I use hot water above 96°C for brewing coffee?
While possible, using water hotter than 96°C can lead to over-extraction, resulting in a bitter taste.
What is the recommended coffee-to-water ratio for espresso?
The recommended coffee-to-water ratio for espresso is about 1:2, meaning 1 gram of coffee per 2 grams of water.
How does grinding coffee beans affect the brewing process?
Grinding coffee beans freshly before brewing ensures optimal extraction and flavor. Finer grinds require shorter brewing times, while coarser grinds need more time.
Results are for informational purposes only and do not constitute professional advice.