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Tuning tipSour? Grind finer. Bitter? Grind coarser.

The Tuned Cup

String E

Basics

The three pegs every cup hangs on: grind, beans and water.

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Grind & Grinders

Burr or blade, grind size charts, and the grinder worth buying.

Beans & Roasts

Roast levels, freshness, storage — and what the bag is telling you.

Water, Ratio & Scales

The 1:16 starting point, water temperature, scales and kettles.

String A

Brewers

Every way to make a cup, from the drip machine to the clay pot.

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Drip & Pod Machines

Drip makers, Keurig, Nespresso, and the ones worth your counter.

French Press & AeroPress

Immersion brewing, grit in the cup, and recipes that work.

Pour-Over

V60, Chemex, Kalita: the bloom, the pour, the drawdown.

Percolator, Turkish & More

Percolators, cezves, phins, and café de olla.

String D

Espresso

Shots, moka pots and milk that behaves.

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Espresso & Moka Pot

Machines, shots, tamping, and the stovetop moka.

Milk & Latte

Frothing, lattes, plant milks and latte art.

String G

Drinks

Cold brew, café favorites and instant that doesn't taste instant.

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Cold Brew & Iced Coffee

Cold brew ratios, iced coffee that isn't watery, frappes.

Café Drinks at Home

Café favorites, syrups and cold foam, made in your kitchen.

Instant Coffee

Better instant, espresso powder, and dalgona that whips.

String B

Tune-Up

Fix the taste, clean the machine, stop the leak.

Taste Problems

Sour, bitter, metallic, watery: find the cause, fix the cup.

Cleaning & Descaling

Descaling, mold, grinders and espresso machines.

Troubleshooting

Leaks, no brew, not hot, blinking lights, Keurig fixes.

String e

More

The counter, the mug, the gear and the leftovers.

The Coffee Station

A coffee bar at home that works every single morning.

Mugs & Thermoses

Keep it hot: desk mugs, travel mugs, carafes.

What to Buy First

The gear a beginner needs, what's worth it, and gifts.

Caffeine, Decaf & Low-Acid

Caffeine by method, decaf that tastes like coffee, low-acid picks.

Leftover Coffee

Reheat it, store it, or turn it into something else.

Basics · the low string

Roast

Light, medium or dark: what roasting changes in the cup, and which roast suits espresso, cold brew and pour-over.

Still tuning this one.

Roast: those guides are on the bench right now. Until they're ready, these ones are in tune.

Or tell the finder what's off

Basics · Head to headBurr vs Blade Grinder for Coffee — Bitter and Sour at Once

Basics · the low string

More on this string.

Grind & Grinders

Burr or blade, grind size charts, and the grinder worth buying.

Burr vs BladeGrindersManualSizeAdjustWhole Bean

Water, Ratio & Scales

The 1:16 starting point, water temperature, scales and kettles.

RatioTemperatureWaterScaleKettle

Still out of tune?

Tell us what's off — sour — and we'll find the fix.