What the Numbers Mean

For a 350 ml pour-over at 1:16, you need about 21.9 g of coffee — roughly 1.4 cups (250 ml) of finished brew. Ratios below 1:14 turn bold and intense; above 1:18 the cup turns light and tea-like.

The Ratio by Method

Pour-over runs 1:15-1:17 for clarity; French press tightens to 1:14-1:15 for body; AeroPress concentrates at 1:11-1:13 (dilute after); espresso compresses to 1:1.5-1:2.5; cold brew concentrates at 1:8 for long steeping. If your cup is bitter, go coarser or use more water — sour means finer or less water.