How to Brew One Cup of Coffee: The Perfect Single Cup
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Most coffee gear is designed for a household, and most coffee advice assumes a full pot. If you live alone, work from home or are the only coffee drinker in the house, that leaves you guessing scoops into a 12-cup machine for one mug. This guide shows how to brew one cup of coffee that tastes as good as a café pour-over: how much coffee to use for your mug size, which brewer to pick and how to fix a cup that comes out bitter or weak.
Key takeaways
- For one cup, weigh it: about 15 g of coffee for 8 oz (240 ml) of water, or 22 g for a 12 oz (355 ml) mug, at a 1:16 ratio.
- The Specialty Coffee Association’s Gold Cup guideline is 55 g of coffee per liter, with water at 195–205°F (90–96°C).
- Pour-over, AeroPress and a small French press brew one cup better than a full-size drip machine.
- Grind right before brewing and adjust one variable at a time.
In this article
- How much coffee for one cup?
- The best ways to brew a single cup
- How to brew one cup of coffee: pour-over step by step
- Fix bitter, sour or weak coffee
- Buying coffee when you drink alone
- FAQ
How much coffee for one cup?
A coffee cup in recipes is not your mug. Coffee makers often count a cup as 5–6 oz, while most mugs hold 10–12 oz or more. That mismatch is the main reason single cups come out weak. Start from what your mug actually holds.
The Specialty Coffee Association (SCA) Gold Cup guideline for brewed coffee is 55 g per liter, about 1:18. Many home brewers prefer a little stronger, around 1:16 or 1:15. Here are the numbers for common mug sizes, rounded to the nearest gram:
| Water | SCA (55 g/L) | Balanced (1:16) | Strong (1:15) |
|---|---|---|---|
| 8 oz / 240 ml | 13 g | 15 g | 16 g |
| 10 oz / 300 ml | 16.5 g | 19 g | 20 g |
| 12 oz / 355 ml | 19.5 g | 22 g | 24 g |
| 16 oz / 475 ml | 26 g | 30 g | 32 g |
The formula is simple: grams of coffee = milliliters of water ÷ ratio. For a 300 ml mug at 1:16, that is 300 ÷ 16 ≈ 19 g. Grounds hold back some water, so you will drink slightly less than you pour.
No scale? A level tablespoon of ground coffee is roughly 5 g, so 15 g is about 3 level tablespoons. Our guide to tablespoons of coffee per cup has the full conversion, and coffee-to-water ratio explains why ratios beat scoops.
The best ways to brew a single cup
| Method | Why it suits one cup | Grind | Time | Cleanup |
|---|---|---|---|---|
| Pour-over cone | Made for one mug; clean, bright cup | Medium-fine | 3–4 min | Toss the filter |
| AeroPress | Fast, forgiving, travels well | Fine to medium | 2–3 min | Very easy |
| Small French press (12–17 oz) | Rich, full body; no filters needed | Coarse | 4 min | Rinse grounds out |
| Single-serve capsule brewer | Push-button, consistent | Pre-ground | 1 min | Discard capsule |
| Full-size drip machine | Possible but often weak or uneven for one cup | Medium | 5+ min | Carafe and basket |
A drip machine is built to wet a wide bed of grounds; with a tiny dose, water can rush through too fast. If you must use one, check whether it has a small-batch setting, use the 1:16 ratio, and brew at least two cups’ worth into a thermal carafe.
How to brew one cup of coffee: pour-over step by step
This is the most reliable single-cup method, and it costs little to start.
- Heat water to 195–205°F (90–96°C), the range the SCA gives for brewing. Without a thermometer, let boiled water rest about 30 seconds.
- Weigh and grind 15 g of coffee for an 8 oz cup (or 22 g for 12 oz) to a medium-fine grind, like coarse sand.
- Rinse the filter with hot water in the cone, then discard the rinse water. This removes paper taste and preheats the mug.
- Bloom: pour about twice the coffee’s weight in water (30 g for 15 g of coffee) to wet all the grounds. Wait 30–45 seconds while the bed bubbles.
- Pour slowly in small circles to reach 240 g total by about 2 minutes. Avoid pouring directly onto the filter paper.
- Let it drain. Total brew time should land around 3–4 minutes. Swirl the mug and taste.
For a deeper look at technique, see our V60 pour-over guide.
French press for one
Use 18–20 g of coarse coffee in a small press with 300 ml of water just off the boil. Stir, steep 4 minutes, break the crust, skim the foam, press gently and pour everything out at once so it does not keep brewing.
Fix bitter, sour or weak coffee
| Your cup tastes… | Likely cause | Change one thing |
|---|---|---|
| Bitter, harsh, drying | Over-extraction | Grind coarser or shorten brew time |
| Sour, thin, salty | Under-extraction | Grind finer, use hotter water or brew longer |
| Weak, watery | Too little coffee | Add 1–2 g of coffee, keep everything else the same |
| Strong but flat | Stale beans | Use coffee within a few weeks of roasting |
| Muddy | Fines or very fine grind | Go coarser; use a paper filter |
Buying coffee when you drink alone
One person drinking one or two cups a day uses roughly 15–45 g a day, so a 12 oz (340 g) bag lasts one to three weeks. That is the sweet spot for freshness. Buy smaller bags more often rather than a big bag that goes stale, and grind only what you need for each cup.
Every Feel Espresso bag is roasted 1–5 days before delivery, so a single bag stays at its best for your whole run. If you are still finding your favorite, the Best Sellers Sample Pack gives you six 2 oz packs, about the right amount to test each coffee over several single cups. For a classic pour-over, Colombia is a balanced, bright medium roast with dried orange, berry and chocolate notes. And for push-button mornings, our 12-pack single serve capsules are sealed without oxygen for freshness.
One cup of coffee FAQ
How many grams of coffee for one cup?
About 15 g for 8 oz (240 ml) of water at a 1:16 ratio. For a 12 oz mug, use about 22 g.
How many scoops of coffee for one cup?
A standard coffee scoop holds about 2 tablespoons, roughly 10 g of ground coffee. So 1 1/2 scoops suits an 8 oz cup, and 2 scoops a 12 oz mug.
Can I make one cup in a 12-cup coffee maker?
You can, but results are often weak or uneven. A pour-over cone placed on your mug is cheaper and gives a better single cup.
What water temperature is best for one cup of coffee?
195–205°F (90–96°C), the SCA brewing range. Water just off the boil is close enough.
Sources
- Achieving the Gold Cup Standard, Seattle Coffee Gear (summarizing the SCA Gold Cup guideline).
Facts checked in October 2026.
Keep reading: Coffee brewing temperature · Single origin coffee