If you’ve ever wondered how much coffee and water for French press brewing is actually needed, you’re not alone. If your French press coffee has ever tasted too weak, too bitter, or just off, chances are it wasn’t the coffee—it was the ratio.
French press coffee is one of the simplest ways to brew great coffee at home, but it’s also easy to overthink. The good news? Once you understand the right coffee-to-water ratio, you’ll get a rich, bold cup every single time—without fancy equipment or guesswork.
Let’s break it down in a simple, practical way.
The Best French Press Coffee Ratio
The tried-and-true ratio for French press coffee is:
1:15 (coffee to water)
That means 1 gram of coffee for every 15 grams of water. This ratio strikes a great balance—strong enough to bring out the coffee’s natural oils and flavor, but smooth enough to avoid bitterness.
If you don’t have a scale, don’t worry. I’ll give you easy spoon and cup measurements too.
French Press Coffee Measurements by Size
Here are the most common French press sizes and exactly how much coffee and water to use:
8 oz Cup
- Coffee: 15 grams (about 1 heaping tablespoon)
- Water: 225 grams (about 8 oz)
Perfect for a single cup without waste.
12 oz Mug
- Coffee: 24 grams (about 2 tablespoons)
- Water: 360 grams (about 12 oz)
Great for a larger morning cup or travel mug.
32 oz French Press (1 Liter)
- Coffee: 60–65 grams (about 8 tablespoons or ½ cup)
- Water: 1,000 grams (1 liter)
This is my go-to size when brewing for more than one person—or when I know it’s going to be a long morning.
Use the Right Grind Size
Grind size matters just as much as the ratio.
For French press:
- Use a coarse grind, similar to sea salt
Too fine a grind will slip through the filter and make your coffee muddy or bitter. A coarse grind keeps the coffee clean, bold, and smooth.
Choosing a Coffee Roast for French Press
The roast you choose plays a big role in how your French press coffee tastes. Medium and medium-dark roasts are the most popular options because they deliver a smooth, balanced cup with rich flavor and low bitterness. They’re ideal for everyday brewing and work especially well with a coarse grind.
Light roasts offer brighter, more acidic flavors and can work in a French press if you enjoy a crisp cup, though they require careful brewing. Dark and French roasts produce bold, smoky coffee with lower acidity and a heavier body. These roasts shine in a French press but should be steeped closer to four minutes to avoid bitterness.
Quick tip: For consistent results, choose a medium or medium-dark roast, coarse ground. If you prefer a stronger, smoky flavor, French roast is a great option—just don’t over-steep it.
How to Make French Press Coffee: Step by Step
- Boil Your Water – Heat 8 oz (or the amount you need) to 195–205°F. If you have a kettle, it is much easier.
- Add Coffee to Your French Press – Use 1 tablespoon of coarse-ground coffee per 8 oz of water. (For more than one serving, see the chart above.) Coarse grind is key to keeping your coffee smooth and clean.
- Pour the Hot Water – Slowly pour the water over the coffee grounds, making sure they’re evenly saturated.
- Steep – Place the top on with the plunger up, and let your coffee steep for 4–5 minutes. This gives you rich flavor without bitterness.
- Press and Serve – Slowly press the plunger down, pour your coffee into your favorite mug, and enjoy!
Quick Tips:
- Adjust steep time slightly if you like your coffee stronger or milder.
- Use medium or medium-dark roast for smooth, balanced flavor, or try French roast if you prefer bold, smoky coffee.
Watch this video for more info:
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