How Much Coffee Should You Use Per Cup?
Share
Start with 55 grams of coffee for every liter of water. That ratio comes from the starting point used in Specialty Coffee Association brewer testing and works well for many automatic drip preparations.
In kitchen terms, it is roughly one part coffee to 18 parts water by weight. If you prefer a stronger cup, move toward 60 grams per liter, or about 1:16.7.
The ratio is a starting point, not a decree from Odin. Your coffee, grinder, brewer, and taste can justify an adjustment.
Coffee-to-water ratio chart
| Brew water | Coffee at 55 g/L | Stronger starting point at 60 g/L |
|---|---|---|
| 8 fl oz or 237 ml | 13 g | 14 g |
| 12 fl oz or 355 ml | 20 g | 21 g |
| 16 fl oz or 473 ml | 26 g | 28 g |
| 24 fl oz or 710 ml | 39 g | 43 g |
| 32 fl oz or 946 ml | 52 g | 57 g |
These figures refer to the amount of water used for brewing. The beverage in your mug will weigh slightly less because the grounds retain some water.
Use a scale when possible
Coffee beans and grounds vary in size and density. A tablespoon of one coffee may not weigh the same as a tablespoon of another. A small digital scale makes recipes repeatable and helps you change one variable at a time.
Place the brewing vessel on the scale, reset it to zero, add the coffee, and measure the water in grams. One gram of water is approximately one milliliter, which keeps the arithmetic mercifully free of chaos.
What if you do not own a scale?
A level tablespoon of ground coffee often weighs somewhere around 5 to 7 grams, but grind size and the coffee itself can change that number. For a 12-fluid-ounce mug, begin with about three level tablespoons and adjust from there.
Once you find a scoop measurement you enjoy, keep the scoop and method consistent.
Strength and extraction are different
Adding more coffee usually makes the beverage stronger, meaning it contains a higher concentration of dissolved coffee material. It does not automatically fix poor extraction.
If the cup tastes sour, sharp, or thin, the coffee may be underextracted. Try a slightly finer grind, longer contact time, or hotter water within a reasonable brewing range.
If the cup tastes harsh, dry, or unpleasantly bitter, it may be overextracted. Try a slightly coarser grind or shorter contact time.
Change one variable per brew. If you change dose, grind, water temperature, and brew time together, you will have no idea which lever moved the flavor.
Starting ratios by brewing method
These are practical starting ranges:
- Automatic drip: 1:16 to 1:18
- Pour-over: 1:15 to 1:17
- French press: 1:15 to 1:17
- AeroPress: Highly recipe-dependent, often more concentrated
- Cold brew concentrate: Commonly much stronger, then diluted before serving
- Espresso: Measured by beverage yield, often near a 1:2 coffee-to-beverage ratio
Recipes vary because each method controls contact time, agitation, temperature, pressure, and filtration differently.
Build your house recipe
Begin with 20 grams of coffee and 355 grams of water for a 12-ounce starting volume. Taste it without changing anything else.
- Want more concentration? Add a little more coffee.
- Want less concentration? Use a little less.
- Sour or thin? Adjust the grind finer.
- Harsh or drying? Adjust the grind coarser.
Folkvang’s House Blend is a balanced medium roast that works well for recipe testing. For a gentler morning profile, try the Breakfast Blend.
Write down the ratio that wins. Congratulations, you now possess your own household coffee law.