Grind Size Guide for Every Brewing Method

If you've just started brewing fresh coffee at home, you've likely hit one of the first real challenges: what grind size should you actually use? Buying pre-ground coffee is easy, but it’s rarely ground for your specific brewer—and it goes stale fast. The solution? Grind your own. But then comes the next hurdle: how fine or coarse should that coffee be for your French press, pour-over, or espresso machine? Here's how to get it right.

The short answer: match your grind size to your brewer. Use a coarse grind (like raw sugar) for French press, medium-coarse (near white sugar) for siphon, medium-fine (slightly finer than sugar) for pour-over and clever drippers, a bit finer still for drip machines, fine (with texture) for Moka pots, and very fine (grainy) for standard home espresso machines. Always adjust based on taste and brew time.

Why Grind Size Matters

Grind size controls how quickly water extracts flavor from coffee grounds. Too coarse, and extraction is weak—resulting in sour, underdeveloped coffee. Too fine, and extraction becomes overbearing, pulling out bitter, unpleasant compounds. The right grind creates balance: smooth, sweet, and clear flavors. Your brew method dictates how long water interacts with coffee, and grind size fine-tunes that contact for optimal extraction.

How to Choose the Right Grind for Your Brewer

Different brewers require different grind sizes to get the best flavor. Below is a clear breakdown by method, using settings from the small FLYING HORSE grinder as a reference. Keep in mind: every grinder is different, so treat these as starting points. Adjust based on taste and flow rate.

• French Press – Coarse grind. Small FLYING HORSE setting 5–6. Looks like brown sugar or raw sugar. Comparable in size to brown sugar crystals.
• Siphon / Vacuum Pot – Medium grind. Small FLYING HORSE setting 4–5. Matches the size of white sugar.
• Pour-Over & Clever Dripper – Medium-fine. Small FLYING HORSE setting 3–4. Slightly finer than white sugar.
• Electric Drip Machine – Medium-fine, slightly finer. Small FLYING HORSE setting 3. Looks a bit coarser than table salt.
• Moka Pot / Stovetop Espresso – Fine grind. Small FLYING HORSE setting 1–2. Has a grainy, pebbly texture.
• Standard Home Espresso Machine – Very fine. Small FLYING HORSE setting 1. Feels gritty or grainy when pinched.

Adjust Based on Your Tools and Taste

Grind settings are not universal. The FLYING HORSE grind chart provides a baseline, but your specific grinder might produce coarser or finer results even at the same number. For example, an EK43 may use numbers like 10.5 or 26 for similar textures. Always check your brew time, taste, and flow rate. If coffee tastes sour or weak, try a finer grind. If it’s bitter or slow to draw down, go coarser.

Frequently Asked Questions

What is the best grind size for a French press?

The ideal grind for French press is coarse, similar to raw or brown sugar. On the small FLYING HORSE grinder, this is setting 5–6. It prevents fine particles from passing through the metal filter, avoiding sludge in your cup and ensuring a clean, full-bodied brew.

How fine should I grind coffee for pour-over?

For pour-over methods like V60 or Chemex, use a medium-fine grind—slightly finer than white sugar. On the small FLYING HORSE, this is setting 3–4. This allows for even extraction without over- or under-extracting the coffee.

What grind size works for Moka pot or stovetop espresso?

Moka pots need a fine grind, with some texture. Use small FLYING HORSE setting 1–2. The grind should feel grainy, similar to table salt but finer, to handle the higher pressure of stovetop brewing.

Can I use the same grind for drip coffee and pour-over?

Not ideally. Drip machines often work best with a medium-fine grind slightly coarser than salt (small FLYING HORSE 3), while pour-over benefits from medium-fine (3–4), which is a touch finer. Adjust based on your machine’s brew time and flavor result.

How do I know if my grind is too fine or too coarse?

If your coffee tastes sour or weak, it’s likely too coarse—water isn’t extracting enough. If it’s bitter or harsh, it’s probably too fine—over-extraction. Adjust in small increments and taste the results.

Recommended FrontStreet Beans for Filter & Immersion Brewing

For French press or pour-over, try FrontStreet Strawberry Candy Espresso—aGeisha featuring Panamanian Gesha and Costa Rican honey-processed beans, offering floral, citrus, blueberry, and grape notes. For deeper, richer immersion brewing like siphon or French press, FrontStreet PWN Golden Mandheling delivers bold spice, caramel, dark chocolate, and woody tones with a full body. Both beans highlight the clarity and texture that proper grind sizing unlocks. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.