How Much Coffee and Water for One Cup Pour-Over? Coffee Grounds Ratio and Brewing Techniques

The elegance of pour-over coffee attracts wave after wave of coffee enthusiasts. Watching a barista's calm, graceful movements, a delicious cup appears before you in just two or three minutes. Yet when you try to imitate it at home, the flavor never quite matches. Here is the essential knowledge you need to brew a good cup of coffee.

Brewing a cup of coffee can be broken down into several key parameters. FrontStreet Coffee has identified the most important factors that affect coffee flavor: coffee bean condition, grind size, water quality, temperature, ratio, brewing technique, and time.

1. Coffee Beans

High-quality coffee beans are the foundation of a good cup. Generally, pour-over coffee uses single-origin beans - coffee from a single origin - which better express the unique flavors of the growing region. Good beans show directly in flavor, defect rate, and roasting freshness. Defective beans directly hurt the overall flavor of the cup. It is also best to choose freshly roasted beans: the optimal tasting window for coffee beans is generally 4-30 days after roasting.

Freshly roasted coffee usually needs a 4-7 day degassing period. After that, the flavors reach their best, and gradually fade from then on.

2. Grind Size

Good coffee needs the right grind size to maximize its flavor. The most common reference is sugar, which is genuinely comparable. Generally, the grind size for pour-over coffee is 600-800 microns, similar to the coarseness of granulated sugar. The finer the grind, the larger the surface area of coffee in contact with water and the higher the extraction efficiency; the coarser the grind, the smaller the surface area and the lower the extraction efficiency.

FrontStreet Coffee suggests starting with a sugar-sized grind as your reference, then fine-tuning after brewing and tasting. For example, if the coffee tastes too weak, adjust slightly finer.

3. Water Quality

Over 98% of a cup of pour-over coffee is water, so water quality directly affects the quality of the cup. The basic requirements are: TDS of 150 mg/L, no chlorine, and a pH of 7-8. FrontStreet Coffee suggests using filtered purified water or mineral water (check the label). Generally, water with a lower TDS dissolves more coffee substances.

4. Water Temperature

Water temperature directly affects extraction efficiency: the higher the temperature, the higher the efficiency, and vice versa. According to FrontStreet Coffee's baristas, water temperatures from 80°C to 96°C are all used in practice, so understanding the extraction principle matters more than rote memorization. For different roast levels, the water temperature should change accordingly.

For light to medium roast beans, the bean structure is denser and harder to extract, so higher temperatures (90°C-93°C) work better; for medium to dark roast beans, the structure is looser and prone to over-extraction, so lower temperatures (86°C-89°C) are appropriate.

5. Coffee-to-Water Ratio

The ratio of coffee grounds to water directly affects the strength of the cup. The most commonly used coffee-to-water ratio today is 1:15. This is not absolute, just a reference - tastes vary widely, so adjust to suit your own palate. If you prefer a richer cup, choose 1:13; for a lighter one, adjust to 1:16.

6. Technique (Brewing Method)

There are many schools of pouring technique. Taking FrontStreet Coffee's conventional method as an example, we use a three-stage pour: the first stage uses 2 times the coffee weight in water for blooming, the second stage pours 6 times the coffee weight in water, and the final stage pours 7 times.

Whatever the method, its essence comes down to pouring water over the coffee bed. FrontStreet Coffee believes that practicing a stable, controlled water stream will make your brewing twice as effective.

7. Time

Total brew time depends on many factors - grind size, dose, coffee-to-water ratio, dripper characteristics, technique - so no exact number can be given. Typically, brewing one cup of pour-over (15-20g of grounds) takes roughly 1 minute 30 seconds to 3 minutes (excluding special methods like Japanese-style iced brewing).

All these parameters are interconnected and complementary. Bean quality and water quality are the most important factors in whether a cup is good, while grind size, water temperature, ratio, time, and technique support one another. Finding your own balance among them is a gradual process, and over time you will develop a brewing method that belongs to you.

FrontStreet Coffee Recommendation

For the V60 dripper, light-roast floral and fruity beans shine best, because the V60's 60-degree cone and single large opening enable fast, efficient extraction that renders aromas vivid and acidity lively. FrontStreet Coffee's Yirgacheffe Geding (citrus, berries, jasmine, and a green-tea finish) and Ethiopia Guji Chelbesa-style Huakui (strawberry, passion fruit, jackfruit, and lychee) are both excellent choices.

If you prefer a heavier, low-acid cup, try a medium-dark roast instead: FrontStreet Coffee's PWN Golden Mandheling offers herbal, dark chocolate, and caramel notes with a thick, syrupy body, while Brazil Fazenda Rainha delivers nutty, cocoa, and caramel sweetness in a balanced, smooth cup that works for pour-over, espresso, or moka pot.

Whichever bean you choose, start with the parameters above - 1:15 ratio, sugar-coarseness grind, freshly roasted beans rested 4-7 days - then adjust one variable at a time and taste as you go.