Brewing Calculator

A strong starting point is 1:15 to 1:17 by weight for most brew methods. That means 1 gram of coffee for every 15 to 17 grams of water. For a 12 ounce cup, start around 20 to 23 grams of coffee and adjust by taste.

Yes. Water boils at a lower temperature at higher elevation. Since coffee and tea extract more slowly at lower temperatures, you may need a longer steep time or a slightly finer grind. Enter your ZIP code above and the calculator will adjust for your elevation.

Bitterness usually means over extraction. The grind may be too fine, the water may be too hot, or the brew time may be too long. Start by making the grind one step coarser.

Sourness usually means under extraction. The grind may be too coarse, the water may be too cool, or the brew time may be too short. Start by making the grind one step finer.

Yes, but it needs major adjustments. Use less coffee, steep for only 90 seconds to 2 minutes, and lower the water temperature to about 85 to 88°C. Expect more sediment because fine grounds pass through the mesh more easily.