You've spent good money of fresh ground FTO coffee, a burr grinder, and a decent brewer...but your coffee is bitter. What gives? Here are two explanations, and ways to fix the bitterness:
- Usually this is due to the incorrect coffee-water ratio. If you brew your coffee and it’s bitter, try putting a little more water in the cup, or lower the coffee-water ration next time you brew. This ratio will be different depending on the brew method.
- This can also be due to selecting the right grind size for your brewing method. For example, if you are trying to use a course coffee bean grind while brewing espresso or Aeropress, which uses a fine or medium-fine grind, then the coffee will be bitter.
A general guideline is called the "Golden Ratio" - one to two tablespoons of ground coffee for every six ounces of water. This can be adjusted to suit individual taste preferences.