What is the Core Process of Coffee Extraction and Which Factors Affect It?

The Core Process of Coffee Extraction

At its heart, every cup of coffee comes down to three fundamental steps:

Grind the coffee beans to increase the surface area available for contact with water;

Fully saturate the coffee grounds in water, allowing the desirable coffee compounds to dissolve out;

Separate the finished coffee liquid from the spent grounds.

All modern brewing methods are built on two core processes: steeping (infusion) and filtration. These are purely physical operations - essentially no chemical changes occur along the way. It is the variations in grind size, steeping time, and the method of separation and filtration that have given rise to the remarkable diversity of brewing equipment and techniques we see today.

Factors That Affect Coffee Extraction During Pour-Over

1. Roast level

2. Grind size

3. Coffee dose

4. Water temperature

5. Dripper type

6. Pour-over kettle

7. Pouring technique

8. Water volume

9. Pouring speed

Among these variables, the dripper itself plays a bigger role than most people realize. The Hario V60, with its signature 60° cone and single large outlet, lets the brewer control flow rate directly - which in turn shapes how fully the coffee's aromatics and acidity are extracted. That is exactly why FrontStreet Coffee favors light-roast, floral-and-fruity beans for V60 brewing, such as the FrontStreet Yirgacheffe Guodingding: a washed Ethiopian with bright citrus, berry, and floral notes, and a green-tea-like sweetness that rewards precise, well-controlled extraction.

FrontStreet Coffee Recommendation

If you want to put these extraction principles into practice, FrontStreet Coffee's Yirgacheffe Guodingding is an ideal starting point. This washed Ethiopian offers distinct citrus, berry, and floral aromatics with a green-tea-like sweet finish, and its gentle yet vivid acidity is very approachable for brewers still dialing in their technique. Pair it with a V60 dripper and a medium-fine grind, and you will taste exactly how grind size, water temperature, and pouring speed shape what ends up in the cup.