Excessive bitterness in espresso almost always has a specific cause. This guide helps you identify it and correct it by adjusting one variable at a time, without guessing or changing everything at once.
Pressure is what makes espresso fundamentally different from every other brewing method. But more pressure does not mean better espresso. Understanding the ideal range and how pressure interacts with grind and ratio can transform your results.
Coffee processing determines how the bean is separated from the fruit before drying. Washed or natural are not just labels: they are completely different sensory profiles that affect how you brew and dial in your coffee.
Simulator · Espresso · V60 · French Press · AeroPress · Moka · Cold Brew · Sensory Profile
Indicative prediction based on extraction theory. Ideal for understanding how variables affect acidity, sweetness, bitterness, astringency and body.
① Choose method · ② Adjust parameters · ③ Interpret the result
State: Balanced·Style: Espresso
💡 Result based on current parameters
Classic balance: a good mix of intensity, sweetness and clarity.
Flavor profile
Acidity · Sweetness · Bitterness · Astringency · Body
Estimated extraction
54/100
18g → 36g (1:2.0)
Estimated time: 32s
Extraction map
≈ Espresso
Zone: Balanced
Sweet spot for espresso: sweetness and clarity with good intensity.
Note: This is an educational heuristic, not a physical measurement.
Quick presets
Tip: light roasts tend to punish underextraction more, while dark roasts bring bitterness earlier.
Saved recipes
Save your first recipe to reuse it or share it.
State: Balanced·Style: Espresso
💡 Result based on current parameters
Classic balance: a good mix of intensity, sweetness and clarity.
Flavor profile
Acidity · Sweetness · Bitterness · Astringency · Body
Estimated extraction
54/100
18g → 36g (1:2.0)
Estimated time: 32s
Extraction map
≈ Espresso
Zone: Balanced
Sweet spot for espresso: sweetness and clarity with good intensity.
Note: This is an educational heuristic, not a physical measurement.
Adjust the recipe and coffee type. The result updates in real time.
Quick presets
Tip: light roasts tend to punish underextraction more, while dark roasts bring bitterness earlier.
Saved recipes
Save your first recipe to reuse it or share it.