Grind size for french press

Grind size for french press

French press coffee is one of the most popular ways to enjoy a rich and bold cup of coffee. However, achieving the perfect brew can be challenging, especially when it comes to selecting the right grind size.

In this ultimate guide, we will explore everything you need to know about french press coffee grind size, including how to select the perfect size and achieve a delicious cup of coffee every time.

What Is the Best Grind Size for French Press Coffee?

The best grind size for French press coffee is a medium-coarse grind. This means that the size of the ground coffee should be similar to that of table salt.

A medium-coarse grind ensures that the coffee is not too fine or too coarse, which can affect the brewing process and the flavor of the coffee.

The ideal grind size allows for a slow and even extraction, resulting in a well-balanced and flavorful cup of coffee.

How to Measure Grind Size for French Press Coffee?

To measure the french press coffee grind size, you can use a coffee grinder with a built-in scale or a separate digital scale. The grind size should be measured in microns or millimeters, depending on the scale you are using.

A medium-coarse grind should measure between 750-1000 microns or 0.75-1.0 millimeters. You can adjust the grind size according to your preference, but be careful not to go too fine or too coarse.

Understanding French Press Grind Size :

The grind size of your coffee beans can have a significant impact on the taste of your French press coffee. Grind size refers to the coarseness or fineness of the coffee particles, and it affects the rate at which water extracts flavor from the beans during the brewing process.

Coarse Grind Size:

For French press coffee, a coarse grind size is typically recommended. A coarse grind means that the coffee beans are ground into larger particles, which results in a slower extraction rate.

This slower rate allows for a more thorough extraction of flavor, resulting in a rich and bold cup of coffee.

Medium Grind Size:

Medium grind size can also be used for French press coffee, although it is not as commonly recommended. A medium grind size can result in a cup of coffee with a slightly weaker flavor and a lighter body than a coarse grind size.

Fine Grind Size:

Using a fine grind size for French press coffee is generally not recommended. Finer particles can result in over-extraction, which can lead to a bitter and unpleasant taste. Additionally, the fine particles can pass through the filter and end up in the final cup, resulting in a gritty texture.

Factors Affecting:

Several factors can affect the optimal French press coffee grind size, including the quality of the beans, the age of the beans, the roast level, and the water temperature.

Quality of the Beans:

The quality of the beans you use can significantly impact the flavor of your French press coffee. The better quality of beans you put in, the better quality cup of coffee you will get out. The French press is pretty flexible and can handle pretty much any style of coffee.

Age of the Beans:

The age of the beans can also affect the optimal grind size. Fresher beans will generally require a coarser grind size, while older beans may require a finer grind size.

Roast Level:

The roast level of the beans can also impact the optimal grind size. Darker roasts tend to have more oils and require a coarser grind size to avoid clogging the filter. Lighter roasts may require a finer grind size to extract enough flavor.

Water Temperature:

Another crucial factor in the French press brewing process is water temperature.

  • Water that is too hot can extract too much flavor too quickly, resulting in a bitter taste.
  • Water that is too cold may not extract enough flavor. The ideal water temperature for French press coffee is between 195-205°F.

How to Grind Coffee for French Press?

When grinding coffee for French press, you should use a burr grinder instead of a blade grinder. Burr grinders provide a more consistent grind size and prevent overheating of the beans, which can affect the flavor. You should also ensure that the coffee beans are freshly roasted and of high quality.

To grind coffee for French press, you should follow these steps:

  1. Heat the water: Boil the water and let it cool to the optimal temperature of 93-96 °C (199-205 °F).
  2. Weigh the coffee beans: Measure the coffee beans according to your desired coffee-to-water ratio. A standard ratio is 1:15 or 1:16, which means one gram of coffee for every 15-16 grams of water.
  3. Grind the coffee: Use a burr grinder to grind the coffee beans as the water heats up. The grind size should be medium-coarse, similar to sea salt.
  4. Brew the coffee: Pour the hot water over the coffee grounds and stir. Let the coffee steep for 4-5 minutes before pressing the plunger down slowly.


  • Use high-quality, freshly roasted beans.
  • Grind the beans coarsely for best results.
  • Use water at a temperature of around 93 degrees Celsius.
  • Bloom the coffee to degas it and enhance the flavor.
  • Brew for 3-5 minutes for optimal flavor extraction.


1. How fine should I grind coffee for the French press?

For optimal French press coffee, it's recommended to use a coarse grind. This type of grind allows for a fuller extraction, resulting in a stronger flavor. To achieve the perfect coarse grind, grind the coffee beans to a size that resembles sea salt or breadcrumbs.

However, it's important not to grind the beans too coarsely, as this can result in a weak and under-extracted cup of coffee.

2. What is the best grind size for French press coffee?

The best grind size for French press coffee is a medium-coarse grind that is similar in size to breadcrumbs or sea salt. A medium-coarse grind allows for a full-bodied and flavorful cup of coffee, while also being easily filtered by the French press filter.

However, some experts recommend using a coarse grind for a regular brewing method.

3. How do I know if my grinder can accommodate a coarse grind for French press coffee?

When selecting a coffee grinder for French press coffee, it's important to choose one that can accommodate a coarse grind. Look for grinders that specifically mention the French press as a recommended brewing method or that have coarse grind settings.

Some popular grinders that work well for French press coffee include the Baratza Encore, the OXO BREW Conical Burr Grinder, and the Capresso Infinity Conical Burr Grinder.

4. How much coffee should I use for the French press?

The recommended coffee-to-water ratio for French press coffee is 1:15, meaning 1 gram of coffee for every 15 grams of water.

For example, for a 16-ounce French press, you would need about 55 grams (or 9 tablespoons) of coffee and 825 grams (or 3 1/2 cups) of water. Adjust the amount of coffee based on your taste preferences.

5 Can I use a finer grind for French press coffee?

We do not recommend using a finer grind for French press coffee, as it can result in over-extraction and a bitter taste.

Additionally, the French press filter is not designed to filter out fine particles, which can cause sediment in the cup and a gritty texture..


Achieving the perfect French press grind size is an essential factor in making delicious coffee.

By understanding the differences between coarse, medium, and fine grind sizes and selecting the right one for your taste and beans, you can create a rich and bold cup of coffee every time.

Remember to experiment with different grind sizes and enjoy the journey of discovering your personal preference for the perfect French press coffee.

Emily Anderson
About the author

Emily Anderson is a coffee aficionado, a certified barista, and the founder of, a comprehensive online resource for coffee enthusiasts. With a deep appreciation for the diverse aspects of coffee, Emily is dedicated to providing readers with a wealth of information about different types of coffee, brewing methods, coffee products, and everything in between.

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