Types of Brewing Methods
The most common way to produce traditional black coffee, medium grounds are added to a brew basket and run through an automatic machine.
A more refined way to make a stronger brew, boiling water is poured slowly over fine grounds set in a filter basket, which drips into a cup.
Pressurized hot water passes through a filter containing finely ground, dark roasted beans. The force produces an especially concentrated shot.
Coarsely ground coffee steeps in room temperature water for an extended period of time, resulting in a low-acidity, high-caffeine brew that's excellent enjoyed cold.
You can buy specially designed cold brew coffee makers, or you can use a French press.