How to Make the Perfect Cup of Coffee
Whichever blend of coffee you prefer or whatever type of equipment you are using to prepare the coffee the objective is the same. To release the coffee oils and soluble coffee compounds into solution in the final beverage.
Not all the soluble compounds are desirable particularly tannin so it is important to brew the coffee is just the right manner to produce the perfect cup.
Although it is possible to extract as much as a third of the mass of coffee from the grounds the optimum amount is about 20%
There are six important factors to consider when making fresh coffee.
1/ The coffee grind - By this we mean the particle size of the coffee grounds. This varies typically from largest to smallest thus: coarse, medium, fine and espresso (or very fine)
Over-extraction can occur if the grind size is too small for the method and equipment used resulting in a coffee being bitter and too strong. If the size is too large then under-extraction will occur resulting in a weak wishy-washy coffee.
Typically one would use a coarse grind for a coffee pot, medium grind for a cafetiere (French Press), medium to fine for a typical filter drip machine and espresso grind for an espresso machine.