James Hoffmann’s French Press Coffee Technique

Quick answer

• Use a coarser grind than you think.
• Bloom your coffee for 30-60 seconds.
• Stir gently after the bloom, then again before plunging.
• Plunge slowly and steadily.
• Don’t let the coffee sit in the press after plunging.
• Taste and adjust for your next brew.

Who this is for

• Anyone looking to elevate their French press game.
• Coffee enthusiasts who want to understand the “why” behind brewing steps.
• People who own a French press but feel their coffee could be better.

What to check first

Brewer type and filter type

You’re using a French press, obviously. But is it clean? That’s key. Make sure the mesh filter isn’t clogged. A clogged filter means bad flow and potentially bitter coffee.

Water quality and temperature

Tap water can be rough. Filtered water is usually best. For temperature, aim for around 200°F (93°C). Too hot and you’ll scorch the grounds. Too cool and you won’t extract enough flavor. Let boiling water sit for about 30 seconds.

Grind size and coffee freshness

This is huge for French press. You want a coarse, even grind. Think sea salt, not table salt. Freshly roasted beans, ground right before brewing, make a massive difference. Stale coffee is just… sad.

Coffee-to-water ratio

A good starting point is 1:15. That means 1 gram of coffee for every 15 grams of water. For a typical 34 oz (1 liter) press, that’s around 60-70 grams of coffee. Adjust to your taste.

Cleanliness/descale status

Old coffee oils are the enemy. They go rancid and make your coffee taste nasty. Clean your press thoroughly after every use. If you’ve got hard water, descale it periodically. Check the manual for your specific model.

Step-by-step (brew workflow)

1. Weigh your coffee.

• What good looks like: Precision. Using a scale takes the guesswork out.
• Common mistake: Guessing the amount. This leads to inconsistent brews. Use a scale.

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2. Grind your coffee.

• What good looks like: A coarse, uniform grind. Like coarse sand or sea salt.
• Common mistake: Using a fine grind. This will over-extract and clog your filter. Grind coarser.

3. Heat your water.

• What good looks like: Water just off the boil, around 200°F (93°C).
• Common mistake: Using boiling water. It can burn the coffee. Let it cool for 30 seconds.

4. Add coffee to the press.

• What good looks like: All your grounds are in the bottom of the press.
• Common mistake: Leaving grounds stuck to the sides. Give the press a little shake to settle them.

5. Start the bloom.

• What good looks like: Pour just enough hot water to saturate all the grounds. They’ll puff up and release gas.
• Common mistake: Pouring too much water too soon. This can lead to uneven extraction. Just enough to wet everything.

6. Let it bloom.

• What good looks like: The coffee bed is bubbling and expanding for about 30-60 seconds.
• Common mistake: Skipping the bloom. You lose out on degassing, which can affect flavor. Be patient.

7. Add remaining water and stir.

• What good looks like: Gently stir the grounds to ensure they’re all submerged and breaking up the crust.
• Common mistake: Aggressive stirring. This can break up the grounds too much, leading to fines and bitterness. A gentle swirl or two is fine.

8. Place the lid on, but don’t plunge.

• What good looks like: The lid is just sitting there, keeping heat in.
• Common mistake: Plunging too early. You need time for extraction. Let it steep.

9. Steep for 4 minutes.

• What good looks like: The coffee is steeping undisturbed.
• Common mistake: Steeping too long or too short. 4 minutes is a solid starting point. Adjust based on taste.

10. Break the crust and skim (optional but recommended).

• What good looks like: Gently push down the crust with a spoon. Skim off any foam or floating grounds.
• Common mistake: Not doing this. Those floating bits can contribute to bitterness. A quick skim helps.

11. Plunge slowly.

• What good looks like: A slow, steady, even press. No force needed.
• Common mistake: Plunging too fast or too hard. This forces fines through the filter and can make the coffee muddy. Slow and steady wins.

12. Serve immediately.

• What good looks like: Pour all the coffee out of the press right away.
• Common mistake: Leaving coffee in the press. It continues to extract and gets bitter. Pour it all out.

Common mistakes (and what happens if you ignore them)

Decision rules (simple if/then)

• If your coffee tastes bitter, then try a coarser grind because fine particles over-extract.
• If your coffee tastes weak, then increase the coffee-to-water ratio or steep for a bit longer because you’re not getting enough extraction.
• If your coffee has a muddy texture, then check your grind size and plunge technique because fines are likely getting through.
• If your coffee tastes sour, then check your water temperature and steep time because it might be under-extracted.
• If you notice a metallic taste, then clean your press thoroughly because old oils can go rancid.
• If your bloom doesn’t rise much, then check your coffee freshness or grind size because it might be stale or too coarse.
• If you have a lot of sediment, then ensure your filter is clean and your plunge is slow and steady because these factors minimize fines.
• If the aroma is weak, then ensure you’re using freshly roasted beans and grinding them right before brewing because freshness is key.
• If your coffee is consistently too acidic, then try a slightly hotter water temperature or a longer steep time because under-extraction can cause sourness.
• If your coffee tastes dull, then ensure you’re using filtered water because tap water can sometimes mute flavors.

FAQ

What’s the best grind size for French press?

You want a coarse, even grind. Think the size of sea salt. Too fine and you’ll get sludge and bitterness.

How much coffee should I use?

A good starting point is a 1:15 ratio of coffee to water. For a standard 34 oz (1 liter) press, that’s about 60-70 grams of coffee. Adjust to your preference.

How long should I steep?

Four minutes is a common recommendation. You can adjust this based on your taste. Shorter for a lighter body, longer for more intensity, but be careful not to over-extract.

Why does my coffee taste bitter?

Likely culprits are a grind that’s too fine, water that’s too hot, or steeping for too long. Try adjusting one variable at a time.

What’s the “bloom” and why is it important?

When you first add hot water, fresh coffee releases CO2 gas. The bloom is letting this happen for 30-60 seconds. It helps ensure more even extraction and better flavor.

Can I use pre-ground coffee?

You can, but it’s not ideal. Pre-ground coffee loses its freshness quickly. For the best flavor, grind whole beans right before you brew.

How do I clean my French press?

Disassemble the plunger and filter. Wash all parts thoroughly with warm, soapy water after each use. Ensure no grounds or oils are left behind.

What if I don’t have a scale?

You can use volumetric measurements, but it’s less precise. A common guideline is about 2 tablespoons of coffee per 6 oz of water, but a scale will give you much better consistency.

What this page does NOT cover (and where to go next)

• Specific coffee bean origins and their flavor profiles.
• Advanced water chemistry for brewing.
• Dialing in very specific extraction percentages.
• Comparison of different French press brands or models.
• Espresso or other brewing methods.