
Bitterness
Bitterness is often characterized by unpleasantness; if coffee is available on its own or in large quantities, so be it. But when combined with other flavor elements, such as sweetness and acidity, bitterness can add body and complexity to coffee.
Bitterness also balances out perceived acidity, which makes it an essential ingredient for a well-balanced cup of coffee. Several factors contribute to the bitter taste of coffee, some of which include: Quinic acid, trigonelline, alkaloids, caffeine, carbon dioxide, etc.
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