Coffee Emergency: Quick Cheat Sheet for Ratios, Grinding, and Time
You're standing in the kitchen, the water in the kettle is already "clicking," and suddenly your mind goes blank: How much of this should I pour? Don't worry, we've all been there. Instead of leafing through bulky manuals, use this short cheat sheet. Pure facts, no fluff (except for the coffee water).
⚖️ 1. Proportions (Ratio)
The specialty golden standard is 6g of coffee for every 100ml (3.4 oz) of water. This is your base – if the coffee is too strong or too weak, start by adjusting up or down by 0.5g.
| I want to brew: | How many grams of coffee? |
|---|---|
| A cup (150 ml / 5 oz) | 9 g |
| Standard mug (250 ml / 8.5 oz) | 15 g |
| Large mug / AeroPress (300 ml / 10 oz) | 18 g |
| V60 Drip / Server (500 ml / 17 oz) | 30 g |
⚙️ 2. Grinding and Time
Grind size is your most important "slider" for flavor. Visually compare the grounds to products in your kitchen cabinet.
| Method | Grind Size | Brewing Time |
|---|---|---|
| Moka Pot | Fine (table salt) | Until light foam flows out |
| AeroPress | Fine / Medium | 1:45 – 2:15 min |
| V60 Drip | Medium (granulated sugar) | 2:30 – 3:15 min |
| French Press | Coarse (sea salt) | 4:00 min + 5 min wait |
💧 3. Water and Temperature
Remember: boiling water is the enemy of sweetness.
- Water: Always filtered (Brita/Dafi pitcher or spring water).
- Temperature:
- Light roast (fruity, citrusy): 93°C – 96°C (200°F – 205°F) (wait 1 min after boiling).
- Dark roast (nutty, chocolatey): 88°C – 92°C (190°F – 198°F) (wait approx. 3 min after boiling).
🔍 4. Quick Flavor Diagnosis
The coffee is already in the mug, you take the first sip and... something's off? Correct it on your next attempt:
| What do you taste? | Diagnosis | Solution (change only 1 thing!) |
|---|---|---|
| Very sour, salty | Under-extracted | Grind finer / use hotter water |
| Bitter, dry on the tongue | Over-extracted | Grind coarser / use cooler water |
| Watery, "sad" | Wrong proportions | Add 1-2g more coffee |
| Too intense, heavy | Too much coffee | Use slightly more water (dilute) |
💡 Pro-tip for the start
If your coffee tastes "flat" despite good beans and you're using tap water – that's the problem. Filtered water is the cheapest and fastest "upgrade" for your home cafe.
👉 Want to go deeper into the coffee world? Check out our step-by-step guide: Beginner's Path.
Cheat sheet not enough? Analyze our Big Map of Mistakes.
Remember the fundamentals: Is your water ruining the taste?.