Home › Brew Methods › How to make coffee
☕ Coffee Basics · 2026How to make coffee properly: the four variables in every cup, a step-by-step drip method, quick starts for six brewers, and the common mistakes.
Written and reviewed by the CoffeeLabAdvisor editorial team · Published 8 September 2026
Making good coffee is four decisions, in this order: fresh coffee, a grind that matches the brewer, a measured ratio of coffee to water, and water hot enough at 195 to 205 F. Get those four right and every brewer on the counter makes a good cup. Get them wrong and no machine rescues you, which is why an expensive brewer fed stale supermarket grounds at a guessed dose still makes disappointing coffee. This page settles each decision once, then gives the method for a drip machine step by step and a quick start for six other brewers.
Every brewing guide eventually reduces to the same four variables, because they are the only four things you control. The coffee sets the ceiling: nothing downstream improves a stale bag. The grind sets how fast water can pass through the bed and therefore how much it extracts in the time available. The ratio sets strength: how much coffee is dissolved into how much water. The water temperature sets how efficiently the extraction happens at all.
Everything else that gets written about coffee is a refinement of these four or a consequence of them. Bloom time is a grind and water-temperature effect. Pour technique is a way of controlling the grind's behaviour. The machine you buy mostly decides how much of the four it handles for you: a drip machine fixes the water temperature and the pour and leaves you the coffee, the grind and the ratio; an espresso machine hands you all four plus pressure. That is also why the order matters. Fixing your beans and your grinder improves every brewer you will ever own; buying a better brewer improves only that brewer.
Buy whole beans with a roast date on the bag, and buy an amount you will finish in a few weeks. Roast date beats every other label on the bag, including origin and roast level, because coffee degrades steadily from the day it is roasted and a bag with only a best-before date two years out is telling you it does not want you to know. Ground coffee degrades faster still, since grinding multiplies the surface exposed to air. Our storage guide covers how long that actually gives you and how to keep it, and the beans roster lists the bags we track.
Roast level is a preference rather than a quality ranking. Light roasts keep more of the origin's own character and want hotter water and a finer grind to extract properly; dark roasts taste more of the roast itself and are more forgiving. Our light roast guide covers the first case. If you are buying supermarket coffee, the honest advice is to buy whole beans there rather than a specialty bag you will keep for three months: freshness beats provenance at this end of the market.
Grind size decides contact time, and contact time decides extraction. The rule is inverse: the less time water spends with the coffee, the finer the grind has to be. Espresso passes water through in under thirty seconds and needs a fine, powdery grind; a French press steeps for four to six minutes and needs a coarse one; drip and pour-over sit in the middle at medium and medium-fine. Getting this wrong is the single most common cause of bad coffee at home. Too fine for the brewer and the water stalls, over-extracts and turns bitter, or overflows the basket. Too coarse and the water rushes through, under-extracts, and the cup tastes thin and sour.
Grind fresh if you can. A burr grinder produces particles of a consistent size, which is what makes an even extraction possible; a blade grinder chops at random and produces dust and boulders in the same batch, which extract at different rates in the same brew. That difference is larger than the difference between a good and a mediocre brewer, which is why the grinder is the first upgrade we recommend to anyone. Our grinding guide covers the technique and the settings, the grind size chart maps every brewer to its band, and the grinder guide covers what to buy.
Measure, do not guess. The Specialty Coffee Association's Golden Cup standard puts the starting point at 55 g of coffee per litre of water, which is roughly 1:18 by weight and lands close to the familiar two tablespoons per 6 oz cup. From there, more coffee makes a stronger cup and less makes a weaker one, and neither is wrong; what is wrong is not knowing which you did, because then a disappointing cup gives you nothing to adjust.
The practical version: a small kitchen scale costs less than a bag of good beans and turns coffee from a guess into a recipe you can repeat or change deliberately. If you will not weigh, a level tablespoon of medium-ground coffee is about 5 g and a standard scoop is two tablespoons, so a 12-cup carafe with 5 oz cups wants about 98 g, which is around 20 tablespoons. Our ratio calculator does the arithmetic for any batch size and any brewer, and explains why a coffee-maker cup is not a mug.
Brew between 195 and 205 F (90 to 96 C). Below that range the coffee under-extracts and tastes sour and thin however good the beans were; boiling water scalds the grounds and pulls harsh flavours forward. If you are pouring from a kettle, the simplest reliable method is to bring it to a boil and wait about thirty seconds before pouring, which lands you inside the range without a thermometer. If you are using a machine, this is the specification worth buying on, and it is why our drip machine guide ranks the machines that publish their brew temperature ahead of those that do not.
The water itself matters more than most people expect, because coffee is about 98% water. Filtered water makes a cleaner cup than hard tap water and protects the machine from scale; distilled water makes a flat one, because extraction needs some mineral content to work with. Tap water through a basic filter is the right answer for almost everyone. Whatever you use, descale the machine on schedule, per our cleaning guide, because a scaled heater quietly drops out of the temperature range above and the coffee gets worse so gradually that nobody notices.
The method most kitchens use, done properly. Total time is about six minutes.
If the result is weak, add coffee before you change anything else. If it is bitter, check the grind is not too fine and that the pot has not been sitting on the plate.
| Brewer | Grind | Ratio | Time | The one thing that matters |
|---|---|---|---|---|
| French press | Coarse | 1:15 to 1:18 | 4 to 6 min | Press slowly and pour it all out; leaving coffee on the grounds keeps extracting |
| Pour-over | Medium-fine | 1:17 | About 3 min | A gooseneck kettle; the pour is the method |
| AeroPress | Medium-fine | 16 to 18 g to the No. 4 mark | About 2 min | The maker's recipe uses 185 F, cooler than everything else here |
| Moka pot | Fine to medium-fine | Fill the basket level, water to the valve | Minutes | Take it off the heat when it starts to gurgle |
| Cold brew | Coarse | 1:5 to 1:8 concentrate | 12 to 18 hours | It is a concentrate; dilute to taste before judging it |
| Espresso | Fine | 1:2 (shot weighs twice the dose) | 25 to 30 s | A grinder that can actually reach espresso fineness |
Each of those has a full guide on this site, and the brewing methods comparison is the map that connects them. If you have no brewer at all, a saucepan and a fine strainer make a serviceable cup by the cold-brew or steep-and-strain route.
Old coffee. A bag opened two months ago is the most common cause, and no adjustment fixes it. Guessed doses. Weak coffee is nearly always under-dosed rather than under-extracted, and people respond by brewing longer, which makes it bitter as well as weak. The wrong grind for the brewer. Pre-ground coffee is ground for drip; using it in an espresso machine or a French press guarantees a bad cup. Water off temperature. Pouring straight off the boil, or brewing on a scaled machine that never reaches temperature. A dirty machine. Coffee oils go rancid within days, so a machine that has not been washed makes stale-tasting coffee from fresh beans.
Fix them in that order. The first three cost nothing, and between them they account for most of the difference between coffee at home and coffee in a good cafe.
A scale, then a burr grinder, then a better brewer. A scale costs almost nothing and makes everything repeatable. A burr grinder is the single biggest improvement most kitchens can make, and it improves every brewer you own now and every one you buy later; our grinder guide starts at the entry level. Only then does the brewer itself pay off, and at that point the drip guide, the pour-over guide and the espresso reviews are the places to look. The three items carded below are one of each: a certified drip machine, an entry burr grinder, and a bag with a roast date.
One of each decision made well: a drip machine that publishes its brew temperature, an entry-level burr grinder, and a bag from a roaster that publishes roast dates. The machine and grinder carry published review scores; the bag's facts are its listing's own.
The 12-cup flagship on the SCA certified list, with a thermal carafe and a single-serve basket. Listing states water reaches the grounds at 194 to 205 F, a small basket for 2 to 4 cups and a large basket for 5 to 12, a double-wall vacuum-insulated carafe, and podless single-serve brewing.
Check price on Amazon →
40 mm burrs · Conical Burr The best espresso grinder under $200: a repairable 40mm conical with 40 steps that pairs well with entry-level machines. Reliable and consistent, if not the clearest or most premium-feeling option.
Check price on Amazon →
The light-roast demonstration: the brightness and origin clarity the roast section describes, from the bag with the strongest tested cup record on our roster. Listing states light roast, 12 oz whole bean, with caramel and red apple named in its own roast description.
Check price on Amazon →Fill the reservoir, weigh out about 55 g of coffee per litre of water, grind it medium for a drip machine, level the bed in a paper filter, brew, and serve within about twenty minutes. The four decisions behind those steps are fresh coffee, the right grind, a measured ratio, and water at 195 to 205 F.
About 55 g per litre, the SCA Golden Cup figure. In kitchen terms that is roughly two level tablespoons per 6 oz carafe cup, or about three per 8 oz mug. A full 12-cup carafe with 5 oz cups takes about 98 g. Our ratio calculator converts any batch size.
195 to 205 F, or 90 to 96 C. Without a thermometer, bring the kettle to a boil and wait about thirty seconds. Below the range coffee under-extracts and tastes sour; boiling water pulls harsh flavours forward.
You do not need to, but it is the biggest single improvement available. Ground coffee degrades much faster than whole beans because grinding exposes far more surface to air. A burr grinder also produces even particles, which is what makes an even extraction possible; a blade grinder does not.
Usually over-extraction: the grind is too fine for the brewer, the brew ran too long, or the pot sat on a hot plate after brewing. Water at a rolling boil does it too. Coarsen the grind one step, keep to the time for your brewer, and decant the pot rather than leaving it on the plate.
Usually under-dosing rather than under-brewing. Weigh the coffee before changing anything else, at about 55 g per litre. If the dose is right, the grind may be too coarse for the brewer, or the machine may be scaled and brewing below temperature.
A drip machine that publishes its brew temperature, fresh whole beans, a burr grinder set to medium, and a scale. That combination removes every variable except your own preference, and it is the setup most home kitchens are best served by before anything more elaborate.
Sources for this page: 55 g per litre Golden Cup ratio and the 195 to 205 F brew temperature: the SCA standard as documented on our coffee-to-water ratio guide and its sources · Grind bands per brewer and the burr-versus-blade consistency point: our grind size chart and grinding guide and the manufacturer sources cited there · Per-method ratios and times (French press, pour-over, AeroPress, moka, cold brew, espresso): the figures published on each of our method guides, each from a maker's instructions or a benchmark roaster's recipe as cited there · Product facts on the cards: the OXO and Baratza review records, and the Intelligentsia listing via the Creators API on its catalog read date We have not lab-tested brewers; where a figure is a manufacturer's, the page names the manufacturer, and machine capabilities come from our own published review records.