The journey from coffee beans to a perfect cup of coffee involves several crucial steps, and one of the most important is grinding the beans. The grind size significantly influences the flavor and aroma of your coffee. Different brewing methods require different grind sizes to extract the best flavors.

In this guide, we'll explore the optimal grind sizes for various popular brewing options: Cold Brew Coffee, French Press, V60, Chemex, AeroPress, Pour Over, and Espresso.

But what grind goes with what brewing method?:


GRIND SIZE

BREW METHOD

Coarse (Sea Salt)

French Press, Cold Brew Coffee, Coffee Percolators

Medium Coarse (Rough Sand)

Flat-bottom filter (e.g. Kalita Wave), Chemex

Medium (Sand)

Siphon Coffee Makers, Cone Shaped Pour Over Drippers, V60

Medium Fine (Smooth Sand / Table Salt)

AeroPress, Moka Pot

Fine (Fine sugar)

Espresso

 

Cold Brew Coffee: Coarse Grind

Cold brew coffee is known for its smooth, mellow flavor and low acidity. To achieve the best results, use a coarse grind. A coarse grind allows for a slow extraction process, resulting in a rich concentrate that can be diluted with water or milk. Aim for a consistency similar to breadcrumbs to prevent over-extraction during the extended brewing time.

A typical cold brew steeping time ranges from 12 to 24 hours, depending on personal preference. Using a coarse grind is important because it allows for a longer steeping time without over-extracting the coffee, which can lead to bitterness. 

French Press: Coarse Grind

The French Press, or press pot, is a classic method that requires a coarse grind to avoid over-extraction and sediment in the cup. A consistent, coarse grind promotes a balanced extraction, delivering a robust and full-bodied coffee. The ideal grind resembles breadcrumbs, ensuring optimal flavor extraction during the steeping process.

If the grind is too fine, it can lead to over-extraction and result in a bitter and overbearing flavor. On the other hand, if the grind is too coarse, it may not extract enough flavor from the coffee beans. 

Cone Shaped Pour Over Drippers: Medium-Coarse Grind

Cone Shaped Pour Over Drippers (such as the V60) require a medium-coarse grind, striking a balance between the French Press and Pour Over. The paper filters typically slow down the extraction process, allowing for a cleaner cup with distinct flavor notes. 

Experimentation is key to finding the ideal grind size for your cone dripper. Adjust the grind incrementally until you achieve the desired extraction time and flavor profile. Keep in mind that variables like water temperature, coffee-to-water ratio, and pouring technique also play a role in the final cup, so it may take a bit of trial and error to find the perfect combination for your taste.

AeroPress: Medium-Fine Grind

The AeroPress is a versatile brewing device that allows for various grind sizes. However, a medium-fine grind works exceptionally well for a balanced extraction. This grind size resembles table salt and contributes to a quick brewing time. 

The versatility of the AeroPress allows for some flexibility in grind size, and you can adjust it based on your taste preferences. If you find the brewing time is too short and the coffee is weak, try a slightly finer grind. If it's too hard to press and the coffee is overly bitter, go for a slightly coarser grind.

Moka Pot: Fine to Medium-Fine Grind

The Moka Pot, renowned for its strong and rich coffee, benefits from a fine to medium-fine grind, similar to table salt or slightly coarser. This grind size facilitates the pressure-driven extraction process, producing a bold brew with a velvety texture and a hint of crema.

Using a grind that is too fine can result in over-extraction and a bitter taste, while a grind that is too coarse may lead to under-extraction, resulting in a weak and sour cup. The right grind size is crucial for achieving the proper balance and flavor extraction in a Moka pot.

Espresso: Fine Grind

Espresso demands a fine grind to achieve the concentrated and intense flavor it is known for. The grind size should be similar to powdered sugar, allowing for a rapid extraction under high pressure. Consistency is crucial in espresso preparation to ensure uniform extraction and a rich crema.

It's important to use a burr grinder for espresso to achieve a consistent grind size. The precise grind is a critical factor in the quality of the espresso, as variations in particle size can lead to uneven extraction and impact the taste of the final shot. Adjust the grind size as needed, depending on the specific characteristics of your coffee beans and your espresso machine.

Using a Burr Grinder for Consistency

A burr grinder is a great tool for coffee grinding because of several key advantages it offers over other types of grinders, such as blade grinders:

  • Consistency: Burr grinders crush coffee beans between two burrs, resulting in a uniform grind size. This consistency is crucial for brewing quality coffee because it ensures even extraction of flavors. In contrast, blade grinders chop beans unevenly, leading to varying particle sizes and inconsistent extraction.
  • Control over grind size: Burr grinders typically offer adjustable settings to control the coarseness or fineness of the grind. This versatility allows users to customize the grind size according to their preferred brewing method, whether it's espresso, drip, French press, or other methods.
  • Retention of flavor: Burr grinders operate at lower speeds compared to blade grinders, which helps prevent overheating of the coffee beans during grinding. Heat can alter the flavor profile of the coffee, so minimizing heat buildup preserves the beans' delicate flavors.
  • Reduced static and mess: Burr grinders generate less static electricity during grinding compared to blade grinders, resulting in fewer coffee grounds clinging to the grinder's surfaces. This reduces mess and makes cleanup easier.
  • Durability: Burr grinders are typically built to last, with sturdy construction and quality materials. While they may be more expensive upfront compared to blade grinders, their durability often makes them a better long-term investment.

Overall, using a burr grinder provides greater control, consistency, and flavor retention, giving you a better cup of coffee compared to other grinding methods.

Coffee Grinding for Each Brew Type. Final thoughts:

Grinding coffee beans is a crucial step in the coffee brewing process, and selecting the right grind size with your perfectly roasted coffee beans is essential for achieving the best flavors from your chosen method. Experimenting with grind sizes allows you to fine-tune your coffee experience and tailor it to your brewing method and taste preferences. Whether you prefer the slow extraction of a coarse grind for cold brew or the intense concentration of a fine grind for espresso, understanding the nuances of grind size will elevate your coffee brewing skills.