Coffee Grind Size Calculator

No — each method needs a different grind because contact time and filtration differ so much.

Espresso needs a fine grind because water passes through in seconds; French press needs coarse because grounds steep for minutes in a metal filter.

No — grinder click or dial numbers aren't standardized.

A setting of "20" on one grinder can be finer or coarser than "20" on another.

Use the texture and particle-size descriptions as your real reference, and treat your specific grinder's numbers as relative to itself.

Bitterness from over-extraction is the most common cause and is usually fixed with a coarser grind, but water that's too hot, brewing too long, or too much coffee for the water can also cause it.

Change one variable at a time so you know what actually fixed it.

Medium to medium-fine, similar to sand.

Go finer if the brew tastes sour or runs too fast, and coarser if it tastes bitter or drains slowly.

Adjust one step at a time.

Coarse, like French press.

Cold brew steeps for many hours, so a coarse grind avoids over-extraction and makes the grounds easier to filter.

Often only roughly.

Pre-ground bags are usually sized for drip machines and go stale faster than whole beans.

For espresso, moka pot or French press, grinding fresh gives you control.

A burr grinder gives far more even particles than a blade grinder, and even particles extract more evenly.

See our burr vs blade grinder guide before buying.

Taste decides. Sour, thin or weak points to grinding finer.

Bitter, harsh or dry points to grinding coarser. Change one step, brew again and compare.