Grind Size Guide

Brewing

Master the art of coffee grinding with our comprehensive visual guide. The right grind size is crucial for proper extraction and optimal flavor.

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Coffee Grind Size Chart

Extra Coarse

Like sea salt or breadcrumbs

Particle size: 1.5mm+
Best for:
Cold BrewCowboy Coffee
Extraction time:
12-24 hours
Why this grind works:
Prevents over-extraction in long steeping methods

Coarse

Like kosher salt

Particle size: 1.0-1.5mm
Best for:
French PressPercolatorCupping
Extraction time:
4-6 minutes
Why this grind works:
Large particles allow for full immersion without over-extraction

Medium-Coarse

Like coarse sand

Particle size: 0.75-1.0mm
Best for:
ChemexClever DripperCafe Solo
Extraction time:
4-6 minutes
Why this grind works:
Balanced extraction for slower pour-over methods

Medium

Like table salt

Particle size: 0.5-0.75mm
Best for:
Pour OverDrip CoffeeSiphon
Extraction time:
2-4 minutes
Why this grind works:
Most versatile grind size for various brewing methods

Medium-Fine

Like fine sand

Particle size: 0.35-0.5mm
Best for:
AeroPressCone FiltersMoka Pot
Extraction time:
1-3 minutes
Why this grind works:
Faster extraction while maintaining clarity

Fine

Like powdered sugar

Particle size: 0.2-0.35mm
Best for:
EspressoBialettiIbrik
Extraction time:
20-30 seconds
Why this grind works:
High surface area for quick, intense extraction

Extra Fine

Like flour

Particle size: Under 0.2mm
Best for:
Turkish CoffeeEspresso (some machines)
Extraction time:
10-20 seconds
Why this grind works:
Powder-like consistency for specialty brewing methods

Grind Size Troubleshooting

Too Fine?

Bitter, over-extracted coffee
Slow drip/flow rate
Clogged filters
Solution: Use a coarser grind setting

Too Coarse?

Weak, under-extracted coffee
Sour or acidic taste
Fast drip/flow rate
Solution: Use a finer grind setting

Just Right!

Balanced, sweet coffee
Smooth extraction
No bitter or sour notes
Perfect! Keep this grind setting

Pro Tips

Invest in a quality burr grinder for consistency
Grind coffee just before brewing for best flavor
Different brewing methods require different grind sizes
Fine-tune your grind based on taste and extraction time

How To Use This Tool

Grind size controls contact area and flow rate, so it is usually the fastest way to fix extraction. This guide helps you match particle size to each brew method.

Use a visual baseline before adjusting finer or coarser.
Reduce sour cups caused by overly coarse grinds.
Prevent bitterness and stalling caused by overly fine grinds.
  1. 1

    Filter by your brew method

    Each method needs a different particle size because immersion and percolation extract differently.

  2. 2

    Compare your current grind to the guide

    Use it as a reference point even if your grinder does not use the same number scale.

  3. 3

    Adjust based on taste and drawdown

    If coffee tastes sour or watery, go finer. If it tastes bitter or the brew runs too slowly, go coarser.

Common Questions

Click a question to expand the answer.

Why do grinder numbers not match between brands?

Manufacturers use different burr sets, zero points, and adjustment ranges, so the same number rarely represents the same particle size.

Should I change grind before changing ratio?

Usually yes. Grind size tends to have the biggest impact on extraction quality, while ratio changes strength more directly.

How do I know if my grind is too fine for pour over?

Common signs include a slow drawdown, muddy cup, bitterness, and stalled flow even when your pour technique is reasonable.

Does stale coffee affect how grind changes taste?

Yes. Older coffee can behave differently in the brewer, so grind adjustments may feel less predictable than they do with fresher beans.