Why Is My Espresso Sour or Bitter? How to Fix Extraction Problems
Your espresso machine is warm, the beans are fresh, and the crema looks inviting. Yet the first sip tastes sharply sour, unpleasantly bitter, or somehow both. An unpleasant shot does not automatically mean your machine needs repairing. Often, the explanation lies in grind size, coffee dose, beverage yield, or brewing temperature. The challenge is that…
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