The complete guide

Coffee brewing guide: ratios, grind and gear for every method

One page for the whole craft — what to buy first, how to brew each method, and how to fix a cup that tastes wrong. Every recommendation links to the gear we tested.

Start at 1:16

20 g coffee : 320 g water

92–96°C water

70–90 ppm hardness

3:00–3:30

Target filter brew time

Free 2-page PDF

Download the Home Coffee Brewing Cheat Sheet

Every ratio, grind size and brew time on one page — plus the taste-fix table, the buy-in-this-order gear list and three setups at $100, $300 and $1,000. Print it and stick it on the cupboard door.

One brew tip every Sunday. Unsubscribe any time.

Buy your gear in this order

Spend on the things that change the cup most. Each pick links to our full breakdown with specs, scores and current pricing.

  1. 1

    Burr grinder

    The single biggest upgrade in the cup — blade grinders make dust and boulders.

    Our pick: Baratza Encore
  2. 2

    Digital scale

    Ratios only work if you weigh them. Scoops vary by up to 40 percent.

    Our pick: Timemore Black Mirror Basic 2
  3. 3

    A brewer you enjoy

    V60, French press or AeroPress — all three make excellent coffee.

    Our pick: Hario V60 02 Ceramic
  4. 4

    Gooseneck kettle

    Control over pour rate and temperature, and a much steadier bloom.

    Our pick: Fellow Stagg EKG
  5. 5

    Airtight storage

    Oxygen is what actually stales your beans, not time on the shelf.

    Our pick: Airscape Coffee Canister
  6. 6

    Better brew water

    Coffee is 98 percent water — minerals decide how sweet it tastes.

    Our pick: Third Wave Water Classic Profile

Every brew method, dialled in

Cold brew

Ratio
1:5 concentrate · 200 g : 1000 g
Grind
Very coarse
Time
16 hours in the fridge

Smooth and low-acid. Steep overnight, filter twice, then dilute the concentrate 1:1 with water or milk over ice.

Cold brew vs iced coffee

Fix your cup in one move

It tastesThat meansDo this
Sour, thin, saltyUnder-extractedGrind finer, or brew hotter and longer
Bitter, dry, harshOver-extractedGrind coarser, or brew cooler and shorter
Weak but not sourToo little coffeeLower the ratio, 1:16 → 1:15
Heavy, overpoweringToo much coffeeRaise the ratio, 1:15 → 1:17
Flat, paperyStale beans or unrinsed filterBuy by roast date and rinse the paper

Water is the other half of the story — see the brewing water guide and how to store your beans.

Where to go next

Frequently asked questions

What is the best coffee-to-water ratio for beginners?

Start at 1:16 — 20 g of coffee to 320 g of water. It suits pour over, drip and most light-to-medium roasts. Go to 1:15 for a heavier cup or 1:17 for a lighter, brighter one.

Does grind size matter more than the brewer?

Yes. A consistent burr grind improves any brewer far more than upgrading the brewer improves a bad grind. Buy the grinder first.

Why does my coffee taste sour or bitter?

Sour, thin and salty means under-extracted — grind finer, brew hotter or longer. Bitter, dry and harsh means over-extracted — grind coarser, brew cooler or shorter. Change one variable at a time.

What water temperature should I brew at?

92–96°C for filter methods. Drop 2°C for dark roasts to soften bitterness, and stay near 96°C for light roasts that need more extraction.

How fresh do the beans need to be?

Brew within two to four weeks of the printed roast date, keep beans whole, and grind only what you are about to brew.

Free 2-page PDF

Download the Home Coffee Brewing Cheat Sheet

Every ratio, grind size and brew time on one page — plus the taste-fix table, the buy-in-this-order gear list and three setups at $100, $300 and $1,000. Print it and stick it on the cupboard door.

One brew tip every Sunday. Unsubscribe any time.