Coffee roast levels significantly impact flavor, aroma, and caffeine content. Here’s a breakdown of common roast levels:

  • Light Roast: Higher acidity, brighter flavors, more caffeine, original bean characteristics preserved
  • Medium Roast: Balanced flavor, aroma, and acidity, with some caramelization
  • Dark Roast: Bold, smoky flavors, less acidity, lower caffeine, more bitter notes

Contrary to popular belief, darker roasts actually contain slightly less caffeine than lighter roasts. The roasting process affects the bean’s chemical composition, creating different flavor compounds at each stage. Light roasts typically highlight the bean’s origin characteristics, while darker roasts emphasize the roasting process flavors.

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Last Updated: September 16, 2025

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