BlackRock Training Practice Exam

Timing is crucial for a freshly pulled double espresso. Once extraction ends, the crema begins to dissipate and the aromatic compounds start to fade as the shot cools. To preserve the crema, sweetness, acidity, and mouthfeel that define a good double shot, you want to use it within about 30 seconds of finishing the pull. If you wait longer, the shot loses its balance and vibrant aroma, and flavors can taste flatter or off. That’s why the maximum window is 30 seconds—the point at which the shot still delivers its optimal profile. The other time frames extend beyond this window, leading to noticeable deterioration in quality.