Medium coarse grind size: Ultimate Brewing Guide & Expert Tips (2026)

Mastering Medium Coarse Grind Size in Coffee Brewing

Choosing the right grind size is crucial for achieving the perfect cup of coffee. Medium coarse grind size strikes a balance between a coarse grind, which is ideal for French press and cold brew, and a fine grind, perfect for espresso. This medium grind size is particularly suitable for pour-over and drip brewing methods, offering a rich, balanced flavor without the bitterness that often comes with finer grinds. However, it also presents its own set of challenges, particularly in maintaining consistent grind size and ensuring the right water-to-coffee ratio.

Overview & Background

The grind size of coffee beans is one of the most critical factors affecting the brewing process. It influences the extraction rate, the speed of brewing, and ultimately, the flavor profile of your coffee. Medium coarse grind size is characterized by larger coffee particles, which are ideal for methods that require a longer contact time between the water and the coffee grounds. This grind size is often used in pour-over, drip, and some cold brewing methods.

Key Brewing Parameters / Specs

• Grind Size: Medium Coarse
• Water Temperature: 90°C - 96°C (194°F - 205°F)
• Water to Coffee Ratio: 1:15 (15g coffee per 225ml water)
• Brew Time: 4-5 minutes for pour-over, 3-4 minutes for drip

Step-by-Step Guide

1. Grind Your Coffee: Use a burr grinder to achieve a consistent medium coarse grind. The grind should be about the size of a pea.
2. Preheat Your Equipment: Preheat your pour-over dripper or drip coffee maker with hot water to eliminate any residue and to ensure even temperature.
3. Measure Your Coffee: For every 15 grams of coffee, use 225ml of water.
4. Brew Your Coffee:
   • Pour a small amount of water (about 50ml) over the grounds to dampen them and start the brewing process. This is called the bloom.
   • Wait 30 seconds for the bloom to settle.
   • Pour the remaining water evenly over the grounds in a spiral pattern, making sure to saturate the entire surface.
   • Allow the water to drip through the grounds for 4-5 minutes for pour-over, or adjust the brewing time based on your specific drip method.

Pro Tips & Common Mistakes

• Consistency is Key: Use a burr grinder to maintain a consistent grind size. Avoid using blade grinders, as they can produce inconsistent particle sizes.
• Controlled Water Temperature: Maintain a water temperature between 90°C and 96°C. Water that is too hot can extract bitterness, while water that is too cool can under-extract the coffee.
• Avoid Over-Extraction: Ensure the water passes through the coffee grounds in a controlled manner. Over-extraction can lead to a bitter taste. Adjust the grind size or the brewing time to avoid this.
• Preheat Your Equipment: This step is often overlooked but crucial. Preheating your equipment ensures even temperature, leading to a better extraction.