The Role of Grind Size in Pour-Over Coffee Brewing

If you're a coffee enthusiast, you've probably heard that grind size plays a crucial role in the quality of your pour-over coffee. But what exactly is grind size, and why does it matter? In this post, we'll explore the role of grind size in pour-over coffee brewing and how to choose the right grind size for your brew.

What is Grind Size?

Grind size refers to the size of the coffee grounds used in brewing coffee. The grind size can range from very fine to very coarse, depending on the brewing method. For pour-over coffee brewing, a medium-fine grind size is generally recommended.

Why Does Grind Size Matter in Pour-Over Coffee Brewing?

The grind size directly affects the rate of extraction, or how quickly water can pass through the coffee grounds. Finer grinds have more surface area, which allows water to extract more quickly. Coarser grinds have less surface area, which slows down the extraction process.

If the grind size is too fine, the coffee will over-extract, resulting in bitter and unpleasant flavours. If the grind size is too coarse, the coffee will under-extract, resulting in weak and watery flavours. Finding the right grind size is essential to achieving a balanced and delicious cup of pour-over coffee.

How to Choose the Right Grind Size for Your Pour-Over Coffee

Choosing the right grind size can be a bit of trial and error, as it depends on a variety of factors such as the type of coffee beans, roast level, and brewing method. However, here are some general guidelines for choosing the right grind size for your pour-over coffee:

1. Start with a medium-fine grind size: As a starting point, a medium-fine grind size is generally recommended for pour-over coffee brewing. This grind size allows for a balance of extraction and avoids over-extraction.

2. Adjust grind size based on taste: If your coffee tastes too bitter or has a sharp, acidic flavour, try using a coarser grind size. If your coffee tastes weak or watery, try using a finer grind size.

3. Consider the brewing method: Different pour-over devices may require different grind sizes. For example, the Trapezoid Dripper generally requires a slightly finer grind than the Flower Dripper.

4. Experiment with different roast levels: Lighter roasts generally require a finer grind size, while darker roasts may require a coarser grind size to avoid over-extraction.

Conclusion

In summary, the role of grind size in pour-over coffee brewing cannot be overstated. It directly affects the rate of extraction and the resulting flavour of your coffee. Finding the right grind size may take some experimentation, but it's worth the effort to achieve a perfectly balanced and delicious cup of pour-over coffee. Remember to start with a medium-fine grind size, adjust based on taste, consider the brewing method, and experiment with different roast levels.