The Perfect Coffee Dose: How Many Grams of Coffee Beans Do You Need Per Cup?

A good general rule is to use 60 grams of coffee beans per liter of water, which equals approximately 6–7 grams of coffee per 100 ml of water. This is an excellent starting point for filter coffee and French press.

Espresso requires a different approach. For a double espresso, the recommended dose is typically around 18–20 grams of coffee.

The exact amount depends on your brewing method and personal preferences, and we always recommend using a digital scale for the most consistent results.

Let’s take a closer look at how to get the best possible flavor from every cup, whether you use a filter coffee maker, French press, or espresso machine.

Why Should You Weigh Coffee? Isn’t a Coffee Scoop Enough?

The short answer: not really.

If you want to consistently brew great coffee, a digital scale is your best friend. Coffee scoops are inaccurate because the density of coffee beans varies.

Dark-roasted beans are lighter and take up more space than light-roasted beans. A scoop of dark roast might weigh 7 grams, while the same scoop filled with light roast could weigh 10 grams.

That’s a difference of more than 40% when measuring by volume alone.

By weighing your coffee, you can make sure you use exactly the same amount every time. This makes your brewing process more predictable and repeatable—and it’s one of the easiest ways to make better coffee at home.

What Is the Golden Ratio for Filter Coffee and French Press?

In the coffee world, you’ll often hear about the Golden Ratio, a widely used guideline for brewing methods such as:

• Filter coffee

• French press

• Chemex

• V60

The recommended coffee-to-water ratio is usually between 1:15 and 1:18, meaning one part coffee to 15–18 parts water.

In practice, that means approximately 6–7 grams of coffee for every 100 grams—or 100 ml—of water.

A simple rule to remember is:

60 grams of coffee per 1 liter of water.

This is an excellent starting point for most brewing methods.

Practical Examples: 60 g of Coffee per Liter

Water	Coffee	Approximate Yield
250 ml	15 g	One large mug
500 ml	30 g	Two mugs or a small pot
750 ml	45 g	Three mugs
1,000 ml / 1 liter	60 g	One full pot

Start with this ratio and adjust it according to your taste.

If the coffee tastes too weak, add one or two grams more coffee. If it tastes too strong or bitter, reduce the amount slightly.

How Many Grams of Coffee Beans Do You Need for Espresso?

Espresso is a different world altogether.

It is a small, concentrated coffee beverage brewed under pressure, so dosing works differently. Instead of focusing primarily on the amount of brewing water, espresso recipes are usually based on the weight of the dry coffee dose and the weight of the finished espresso.

A modern standard for a double espresso is approximately 18–20 grams of coffee.

From this amount, you would typically aim to extract around 36–40 grams of espresso in approximately 25–30 seconds.

That gives you a brew ratio of roughly 1:2.

Coffee beans are often at their best between 7 and 30 days after roasting.

Because espresso brewing is highly sensitive to small changes, a scale is almost essential. Even minor differences in dose can significantly affect extraction time and flavor.

And, of course, always start with fresh, high-quality coffee beans. They are the foundation of great espresso.

How Can I Adjust the Coffee Dose to Suit My Taste?

Recommended ratios are simply starting points.

You are the one drinking the coffee, so ultimately it should taste good to you.

Once you have found a good baseline using the ratios above, you can start fine-tuning your recipe.

1. Change only one variable at a time. If you change both the dose and grind size simultaneously, you won’t know which change affected the flavor.

2. If the coffee tastes too weak or sour: Increase the amount of coffee slightly, for example by 1 gram at a time, OR grind finer.

3. If the coffee tastes too strong, bitter, or dry: Reduce the amount of coffee slightly OR grind coarser.

At Rogers Coffee, we believe experimentation is the best way to learn.

Don’t be afraid to adjust your recipes. That’s how you discover the brewing method and ratio that work best for your taste.

Find Your Favorite – Freshly Roasted Coffee Makes All the Difference

Finding the perfect coffee dose becomes much easier when you start with quality ingredients.

Freshness plays a crucial role in flavor.

We roast our coffees in small batches every week so that the beans arrive at your home fresh and full of the aromas and characteristics of their origin.

If you want to experience what our freshly roasted beans can taste like in the hands of a professional, visit Fiika Café in Pietarsaari.

Every coffee served there is roasted by us and professionally prepared. It’s a great way to experience what excellent coffee can taste like and find inspiration for your own home brewing.

The easiest way to discover your favorite coffee is to taste different options side by side.

Our convenient 90-gram coffee sample packs are ideal for this. You can explore different origins and roast levels without committing to a full bag.

Professional Coffee Advice Is Only a Message Away

Finding the right coffee and brewing method can sometimes feel challenging.

We’re here to help.

Better coffee starts with a conversation, and we’re always happy to share our expertise.

We offer advice and consulting for both home baristas and business customers. We can help you:

• Choose a coffee that suits your taste

• Improve your brewing techniques

• Find the right brewing equipment and recipes

• Create a complete coffee solution for your business

Feel free to contact us, and let’s make your coffee better.

Frequently Asked Questions

How Many Grams Are in One Coffee Scoop?

A standard coffee scoop typically holds approximately 7–10 grams of coffee, but the exact amount can vary significantly depending on the size of the scoop and the roast level of the coffee.

Because coffee bean density varies, measuring with a scoop is not particularly accurate.

For consistent results, we recommend using a digital scale.

Do I Need an Expensive Coffee Scale?

No.

For filter coffee and French press, a regular kitchen scale that measures to an accuracy of 1 gram—or preferably 0.1 grams—is perfectly sufficient.

For espresso, we recommend a scale that measures to 0.1-gram accuracy and is small enough to fit on your espresso machine’s drip tray.

How Do I Find the Right Coffee and Dose for Me?

The easiest place to start is with high-quality, freshly roasted coffee and the standard 60 g of coffee per liter of water ratio.

Taste the coffee and adjust the dose according to your preferences.

If you want to explore different flavor profiles, our 90-gram coffee sample packs are an easy way to compare different origins and roast levels without buying a full bag.

How Many Cups of Coffee Can You Drink Per Day?

A commonly recommended upper limit for healthy adults is approximately 400 milligrams of caffeine per day.

Depending on the coffee’s strength and caffeine content, this can correspond to roughly 4–5 cups of regular filter coffee, assuming a cup size of around 125 ml.

However, caffeine tolerance varies between individuals. The actual amount depends on factors such as coffee strength, serving size, and personal sensitivity.

It is always worth paying attention to how your own body responds to caffeine.

Does the Coffee-to-Water Ratio Change for Iced Coffee?

Yes.

When making Japanese-style iced coffee, also known as flash brew, hot coffee is brewed directly over ice.

Because the melting ice dilutes the drink, the coffee should initially be brewed stronger.

A good starting point is a ratio of approximately 1:12 to 1:14, which corresponds to around 70–80 grams of coffee per liter of water, with part of the brewing water replaced by ice.

From there, you can adjust the ratio to suit your preferred strength and flavor.