Brew single-origin coffee the way you brew any other coffee: for drip, 55 g of coffee per litre of water, about 1:18 by weight, which is about 10 g for a 6 fl oz cup. There is no special single-origin method. In our view, one origin makes each change in grind or dose easier to read.
So change one thing at a time. Weigh the coffee, weigh the water, grind on a burr grinder, and write down what you changed.
Table of Contents
How much coffee per cup? About 10 g per 6 fl oz
In the NCA’s Golden Ratio a coffee “cup” is 6 fluid ounces, not 8. That is a common source of dosing errors, because kitchen “cups” and coffee “cups” are different units. Six fluid ounces is about 177 ml of water, so at 55 g per litre one cup takes about 10 g of coffee; an 8 fl oz mug (about 237 ml) takes about 13 g.
The reference figure comes from the Specialty Coffee Association’s brewing standard for home brewers, which states it as a mass ratio: “The standard brew ratio of 55 g of coffee per 1.000 kg of 17±3°C water” (§7.1.5) (SCA Standard 310-2021, Home Coffee Brewers). Fifty-five grams in a kilogram of water is 1:18.2. The National Coffee Association’s consumer version of the same idea is “1 to 2 tablespoons of ground coffee for every 6 ounces of water (the ‘Golden Ratio’)” (NCA, drip coffee), whose strong end lands close to the SCA number. For a full pot, our page on how much ground coffee for 12 cups works that ratio through in grams, tablespoons and scoops.
And the direction of travel confuses almost everyone, so: stronger coffee means MORE coffee, not less. A 1:15 brew is stronger than a 1:18 brew. The second number is water, so as the drink gets stronger the number gets smaller. If your coffee tastes thin, add coffee — do not add water and hope.
A worked example, derived from the SCA and NCA figures on this page rather than a recipe we have tested: for four 6 fl oz cups in a drip brewer, use about 710 ml of water (measure it; a brewer’s own cup marks may be 5 fl oz) and 39 g of coffee, ground medium, like kosher salt, with about 5 minutes of contact. Keep that fixed for your first few brews, then change one thing per brew.
Coffee-to-water ratios by brewing method
1:18 is the drip and general reference. Individual methods have their own published ranges, and using them is not disagreeing with the standard, which covers electric drip brewers only. From the National Coffee Association’s own brewing guides:
| Method | NCA coffee-to-water ratio | Grind | Contact time |
|---|---|---|---|
| Drip (house reference) | 1–2 tbsp per 6 fl oz (at about 5 g per level tablespoon, the 2-tablespoon end is about 1:18 by weight) | Medium, like kosher salt | ~5 minutes |
| Pour-over | 1:13 to 1:16 | Medium | 2–4 minutes |
| French press | 1:10 to 1:16 | Coarse, like rock salt | ~4 minutes |
| Espresso | 1:2 (dry coffee to liquid espresso) | Fine, like table salt | 20–30 seconds |
The NCA states the underlying rule as well: “As a general rule, the longer the coffee is in contact with water during the brewing process, the coarser the grind should be.” That is why espresso is fine and cold brew is coarse, and it is the one principle worth memorising if you memorise nothing else.
For water temperature, see our page on the best temperature for French press coffee, which gives the standard range and the source behind it. 200°F (93°C) sits inside that range.
What does single origin mean?
Single origin means the coffee in the bag comes from one place — one country, one region, one cooperative, sometimes one farm or one lot. The label says nothing about quality: a single-origin coffee can be poor, and a blend can be excellent. What it says is that the variables have been narrowed, which is why it is the right thing to buy while you are learning to brew. Our page on house blend coffee covers the other side of that choice.
Country-level tasting notes are not reliable. In our view, processing method and roast level move the cup more than the country does. Where regional character can be attributed to someone who is entitled to describe it, we do that on the origin pages themselves; see Ethiopian coffee beans, history and regions, which quotes Ethiopia’s own coffee-quality authority rather than inventing notes.
Two things on the bag matter more than the origin name: the roast date and the process (washed, natural, honey). If you want to know what the roast level is doing to your cup, see coffee roast levels.
Which equipment matters most? The grinder
Grind consistency, not the brewer. The National Coffee Association is unambiguous about which type to buy: “We recommend using a burr grinder—whether at home or where you buy your coffee beans.” Its reasoning is mechanical rather than aesthetic — a burr grinder “crushes coffee beans between a moving grinding wheel and a non-moving surface”, and these “do a better job of creating a consistent grind, which allows the flavors of the coffee to extract more evenly… They’re also less likely to overheat the grounds during the grinding process.”
That consistency is measurable. A study in Scientific Reports that ground coffees under controlled conditions found the particle size distribution “is independent of the bean origin and processing method”, but that bean temperature is not neutral — “grinding cold results in a narrower particle size distribution, and reduced mean particle size” (Uman et al., Scientific Reports 6: 24483, 2016). The practical reading: your grinder and your beans’ temperature control the grind; the origin on the bag does not.
A scale matters for the same reason. Volume measures of ground coffee vary with grind size and roast level — a tablespoon of dark-roast coarse grounds and a tablespoon of light-roast fine grounds are not the same mass — which is how a recipe written in scoops can drift to twice the dose it meant.
Common mistakes when brewing single-origin coffee
- Guessing the dose. Covered above. It is the most common error and the largest in effect.
- Changing two things at once. If you alter the grind and the ratio in the same brew, you have learned nothing. This is the whole reason to buy single origin while you are dialling in.
- Blaming extraction for a stale bag. Grind size and time are worth adjusting only once the coffee is fresh; before that you are tuning a variable you do not control.
- Dirty equipment. Coffee oils go rancid, and a grinder holds them. Rinse the brewer after each use and clean the grinder periodically. If your beans leave visible oil on everything, why some coffee beans are oily explains what that is and is not telling you.
Bitter usually means over-extracted: grind coarser or shorten the contact time. Sour or thin usually means under-extracted: grind finer, or add coffee.
Equipment we link to
These are paid links. If you buy through one, this site earns a commission and you pay the same price. As an Amazon Associate I earn from qualifying purchases. Nothing listed here has been bought, used or tested by us: these are the products an earlier version of this page linked to, named accurately, not a tested recommendation. The Federal Trade Commission’s Endorsement Guides say that “in any communication using an interactive electronic medium, such as social media or the internet, the disclosure should be unavoidable” (16 CFR § 255.0(f)), which is why it is here rather than at the bottom of the page.
- Burr grinders: Breville Smart Grinder Pro (BCG820BSSXL), Baratza Sette 270, Cuisinart DBM-8 Supreme Grind
- Pour-over brewers: Chemex classic pour-over coffeemaker, Hario V60 ceramic dripper
- A single-origin coffee to practise on: whole-bean Ethiopian coffee from the Yirgacheffe region, 16 oz
Corrections to earlier versions of this page
- An earlier version said to “aim for about 20 grams per cup”. That is about twice the standard dose: 20 g in a 6 fl oz cup (177 ml) is roughly 113 g per litre, about 1:9, stronger than the NCA’s ranges for drip, pour-over and French press; even at 8 fl oz it is near 1:12.
- An earlier version had a table giving fixed flavors and acidity ratings for four countries (Ethiopia “fruity, floral”, Colombia “nutty, caramel”, Brazil “nutty, chocolate”, Kenya “berry, winey”) with no source; nobody at this site cupped them. It was removed rather than re-sourced.
- An earlier version’s link labelled “Baratza Encore” went to the Baratza Sette 270, a different grinder, and its coffee link paid another website’s affiliate account, so this site earned nothing from it. Both were corrected.
