Coffee Brewing Ratios Explained: Get It Right Every Time
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When it comes to achieving the ability to brew the perfect cup of coffee, one critical factor demands attention: the coffee-to-water ratio. This simple yet powerful concept can elevate your brewing game, ensuring a consistent and flavorful cup of coffee. Understanding brewing ratios is essential to becoming a coffee expert. Let’s dive into the details…
What Is a Coffee Brewing Ratio?
A brewing ratio is the proportion of coffee to water used during brewing. It’s often expressed as a weight-based ratio (e.g., 1:15 or 1:16). The first number represents the amount of coffee, while the second denotes the amount of water. For example, a 1:16 ratio means 1 gram of coffee for every 16 grams (or milliliters) of water.
Why Does the Ratio Matter?
The brewing ratio significantly impacts the coffee’s strength, flavor balance, and overall quality. Too much coffee relative to water can result in an overly strong and bitter brew. Too little coffee, on the other hand, may yield a weak and watery cup. By mastering your ratios, you can achieve consistency across brewing sessions, control the strength of your brew, and highlight subtle flavor notes.
“Adventure in life is good; consistency in coffee even better.” – Justina Chen

Tools You’ll Need
To achieve accurate brewing ratios, precision is key. Here’s a list of tools that can help:
- Digital Coffee Scale: A reliable scale with a precision of 0.1 grams is indispensable for weighing coffee and water accurately.
- Burr Grinder: Consistent grind size is essential for the uniform extraction that we desire. Try to stay away from inconsistent blade grinders and invest in a quality manual or electric burr grinder for the best results.
- Brewing Device: Whether you use a pour-over dripper, a French press, or an AeroPress, choose a device suited to your preferred brewing style. There is no “right” brewing style, but your style will be the basis for what type of ratio you start with.
- Gooseneck Kettle: For pour-over brewing methods, a gooseneck kettle provides better control over water flow.
- Timer: Precise timing ensures that your brew doesn’t under- or over-extract.
Common Coffee Brewing Ratios
Here are some popular brewing ratios based on brewing methods to get you started. If you aren’t satisfied with your results, have some fun and try experimenting with a slightly different ratio.
French Press: 1:12 to 1:15
Espresso: 1:2 to 1:2.5
AeroPress: Varies, but typically 1:15 to 1:17
Cold Brew: 1:4 to 1:8 (concentrate)
How to Calculate Brewing Ratios
Here’s a step-by-step guide to calculating your brewing ratio:
- Decide on Your Ratio: For a standard pour-over, let’s use a 1:16 ratio.
- Determine Your Coffee Weight: Let’s say you’re using 20 grams of coffee.
- Calculate Water Weight: Multiply the coffee weight by the ratio. In this case, 20 grams × 16 = 320 grams of water.
- Brew Accordingly: Use your tools to measure and brew with precision.
Tips for Perfecting Your Brew
- Experiment and Adjust: Ratios are starting points, not absolutes. That is why we find the world of coffee so exciting because it is both an art and science. Get creative and experiment within a range to find what suits your taste preferences.
- Use Fresh, Quality Beans: No matter how perfected your brewing techniques are, they still can’t salvage stale or subpar beans. Invest in freshly roasted, high-quality coffee.
- Pay Attention to Grind Size: Different brewing methods require specific grind sizes. Check out our Grind Size Guide and adjust your grinder settings to match your brew method.
- Monitor Extraction: Taste your coffee as you go. If it’s too strong or bitter, try a coarser grind or slightly less coffee next time. If it’s weak or sour, try a finer grind or more coffee.
-the coffee collect