There are a lot of variables that come into play between brewing methods, grind size, water temperature, and type of bean.
Coarse Grounds require MORE processing time. Fine Grounds require LESS processing time.
For example: Cold brew requires extra coarse grounds and since the water is cold it takes around 12-18 hours to produce. An espresso requires fine grounds and is in contact with the water for only 20-30 seconds to produce.
Check out the “BREWING” page to understand the different ways to produce a great cup of coffee.