Is the coffee too weak?
Weak coffee is most often the result of too little coffee or too short an extraction – the brew is watery and lacks character.
What does that mean?
there's too much water in the infusion
the grind is too coarse
the brewing time is too short
How to improve the taste of coffee?
use more coffee
grind finer
extend brewing time
reduce the amount of water
If the coffee tastes differently than just weak
Common mistakes
too coarse a grind
brewed for too short a time
water temperature too low