Coffee brewing is grouped into:
Drip/filter – like a coffeemaker, V60 and Kalita
Full immersion – like frensh press, Aeropress and cupping
Espresso – from an espressomachine
Grinding
First you have to grind the beans – that’s a science of its own.
The taste of fines
A study on the behaviour of the smallest particles in the grind and how they affect the taste.
Grinder alignment
Exactly how much side by side the two burrs are placed in the grinder has importance for the particle distribution of the coffee grind.
Water
Water is not just water. It varies a lot. And the taste of a coffee is much influenced by the type of water you use.
Dosage
How much coffee to water makes a difference for the taste. Not only the strength but also the character of the taste: acidity, bitterness, aromas.
Read about dosage depending of light or dark roast.
Time your espresso shot
Read espresso shot by taste.