How to Brew Coffee from Whole Beans

Ever wonder why your homemade coffee just doesn’t taste like the cup you had at a good café? The secret isn’t always the brewing device — it starts with the beans, how you grind them, and the water temperature you use. Get these three fundamentals right, and you’re already halfway to a great cup.

To make great coffee from whole beans, start with freshly roasted, high-quality beans, grind them to the right size for your brewing method (coarse for French press, medium for drip, fine for espresso), and brew with water between 90–96°C — ideally not boiling. Never reheat brewed coffee, and drink it fresh around 85°C for the best flavour.

Start with Quality Whole Coffee Beans

If you want a truly good cup of coffee, the most important step happens before you brew: choosing the beans. Fresh, well-roasted coffee beans will produce a richer, more authentic flavour. Look for beans that are uniform in colour and size. High-quality beans typically have a natural sheen and a strong, pleasant aroma — with no off or stale smells.

Why Grind Size Matters in Brewing

Grinding your coffee beans correctly is essential for proper extraction. Coffee grind size is generally categorised into three main types:

• Coarse grind: Used for filter-style coffee makers (like a traditional percolator or French press). Larger particles reduce over-extraction.
• Medium grind: Suited for drip coffee makers, pour-over cones, and siphon (vacuum) brewers. A balanced grind for balanced flavour.
• Fine grind: Ideal for espresso machines. Fine grinds increase surface area for quicker extraction under pressure.

The shorter your brew time, the finer your grind should be. That’s because smaller particles expose more surface area to hot water, speeding up flavour extraction. However, grinding too fine can lead to bitterness and may clog your brewing equipment. On the other hand, a grind that’s too coarse often results in under-extracted, weak or sour coffee.

Water Temperature: The Key to Balanced Extraction

Water makes up about 97% of your coffee, so its quality and temperature dramatically affect the final taste. Always use filtered water for the cleanest flavour. Avoid boiling your water — water that reaches a full boil (100°C) can scorch the grounds, leading to bitter, unpleasant notes.

The optimal water temperature for brewing coffee is just below 96°C, ideally in the range of 90–96°C. This range allows for ideal extraction of the coffee’s flavours without extracting excessive bitterness. Once brewed, don’t reheat your coffee — doing so degrades its flavour. For the best experience, only brew as much as you plan to drink right away, and enjoy it at around 85°C.

Brewing Methods & Grind Size Reference

Frequently Asked Questions

What is the best grind size for drip coffee?

The best grind size for drip coffee is medium — similar to table salt. This size works well with common drip systems, allowing for balanced extraction without over- or under-extracting the coffee.

Can I use boiling water to brew coffee?

No, you should not use boiling water. Water that reaches 100°C can over-extract the coffee, resulting in bitterness. For best results, use water heated to just below 96°C, ideally between 90–96°C.

Does grind size affect coffee taste?

Yes, grind size has a major impact on taste. Too fine a grind can cause over-extraction and bitterness, especially in methods with short brew times. Too coarse a grind often leads to under-extraction and weak or sour flavours. Match the grind size to your brewing method.

How hot should water be for brewing coffee?

Ideal brewing water temperature is between 90–96°C. Staying below boiling (100°C) prevents burnt or bitter flavours while ensuring proper flavour extraction.

How should I store my coffee beans?

Store your coffee beans in an airtight container away from light, heat, and moisture. While the article doesn’t specify storage, this is standard practice to preserve freshness and flavour.

Can I reheat brewed coffee?

You shouldn’t reheat brewed coffee. Doing so degrades the flavour profile, often making it taste burnt or flat. For the best cup, drink coffee soon after brewing at around 85°C.

Recommended FrontStreet Coffee Beans for Home Brewing

For home-brewed coffee, try FrontStreet Coffee’s Ethiopia Humbera — bright with citrus and floral tones, perfect for pour-over. Their PWN Golden Mandheling offers a rich, full-bodied cup with hints of chocolate, ideal for French press. For espresso lovers, the Black Cocoa Blend delivers a bold profile with dark cherry and cocoa notes. All beans are freshly roasted for peak flavour. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.