The Perfect Grind Size for Pour Over—for the Best Pour Over Result.

Der perfekte Mahlgrad für Pour Over- für das beste Pour Over-Ergebnis.

The grind size is one of the most crucial factors for preparing pour over coffee. If the grind size is not set correctly, the final result can be significantly affected – either by over- or under-extraction. In this article, you will learn which grind size is ideal for pour over and how to achieve the best results.

The perfect grind for Pour Over

You can find everything about pour over coffee here in our article overview.

Why is grind size so important?

The grind size influences the speed at which water flows through the coffee grounds, and thus the extraction of aromas. If the grind size is too fine, the brewing process slows down, leading to a bitter and over-extracted coffee. If the grind size is too coarse, however, the brewing water flows too quickly through the coffee bed, resulting in a watery and under-extracted coffee.

Which grind size is ideal for pour over?

For the pour-over method, a medium to medium-coarse grind size is recommended. This allows the water to flow evenly through the coffee grounds and ensures optimal extraction of the aromas. A grind that is too fine could lead to over-extraction, while a grind that is too coarse will make the coffee taste flat and underdeveloped.

How to choose the right grind size for pour over?

Finding the right grind size sometimes requires a bit of experimentation. The following tips can help:

  • Start with a medium grind size: This is a good starting point.
  • Observe the brewing time: The entire brewing process should take 2 to 4 minutes. If the flow is too fast, choose a finer grind size; if the brewing is too slow, choose a coarser one.
  • Taste the coffee: Sour notes indicate under-extraction – a finer grind size will help here. Bitter notes indicate over-extraction – in this case, a coarser grind size is better.

Fine-tuning the grind size depending on the filter

Depending on the filter type used, you can slightly adjust the grind size:

  • Paper filters (e.g., Hario V60, Chemex): Medium grind size, similar to fine sea salt. These filters allow fewer fine particles and oils to pass through, resulting in a clear, clean coffee.
  • Metal filters: Slightly coarser grind size. Since metal filters allow more coffee oils and sediments to pass through, you can achieve a more intense flavor profile with a coarser grind size.
  • Cloth filters: Medium to medium-coarse grind size for balanced extraction and a full-bodied flavor profile.

How does grind size affect extraction time?

The grind size directly influences the extraction time. The finer the coffee grounds, the longer it takes for the water to pass through. An ideal pour over should take about 2.5 to 4 minutes. If the grind size is chosen correctly, this ensures a balanced extraction, where the best aromas are released without bitter notes dominating.

Why is a consistent grind size crucial?

A consistent grind size is important to ensure constant extraction. If the coffee beans are ground unevenly, the water will extract fine particles faster and coarse particles slower, leading to an unbalanced cup. A high-quality coffee grinder, preferably one with burrs or conical burrs, is essential to achieve a consistent result.

Tips for adjusting grind size

  • Adjust according to taste: If the coffee is too bitter, try a coarser grind size. If it tastes watery or sour, a finer grind size is needed.
  • Grind size dependent on the bean: Different coffee beans may require slight adjustments to the grind size. Especially light roasts develop their full potential with a slightly finer grind size, while darker roasts often benefit from a slightly coarser grind size.
  • Experiment: Every pour over can be individual. Try different grind sizes and find the optimal one for your personal preferences.

Fine grind size – Intense flavor, but with caution

A fine grind size is often used for espresso, but can also be used for pour over to achieve a more intense aroma extraction. However, one should be careful, as coffee ground too finely can slow down the brewing process and make the coffee bitter.

When is a finer grind size ideal?

A finer grind size is suitable if you prefer a stronger coffee or if the coffee should have a shorter brewing time. However, caution is advised here: too slow an extraction can over-extract the coffee and negatively affect the taste.

Medium grind size – The ideal companion for pour over

For most pour over preparations, the medium grind size is the best choice. It offers a good balance between flow rate and aroma yield. The water flows evenly through the coffee grounds and extracts the aromas optimally.

Why is the medium grind size perfect?

A medium grind size ensures consistent extraction and prevents both over- and under-extraction. This leads to a balanced taste that is neither too bitter nor too sour.

Coarse grind size – For milder, less intense coffee

A coarse grind size allows water to flow through the coffee faster, resulting in a shorter brewing time. This can be advantageous when a milder, less intense coffee is desired. Coarsely ground coffee is often used in a French Press, but also works for pour over for a gentler taste.

When is a coarse grind size recommended?

A coarse grind size is suitable if you prefer a milder coffee or aim for a shorter brewing time. For a gentle aroma yield without excessive bitterness, this is a good option.

pour over - grind size and its importance

Conclusion

The perfect grind size for pour over coffee is in the medium to medium-coarse range, depending on the filter used and personal preferences. A consistent grind size and the right adjustment ensure optimal extraction, which unfolds the full aroma profile of the coffee beans. Experiment with different beans and grind sizes to find your perfect cup.

You can find everything about pour over coffee here in our article overview.