What does a lungo taste like?

A lungo is essentially an espresso that has been allowed to extract for a longer period. While a standard espresso might have a ratio of 1:2 (coffee to water), a lungo often pushes this to 1:3 or 1:4. By extending the contact time between the water and the coffee grounds, you are extracting more of the soluble compounds from the coffee, including those that are less easily dissolved.

In terms of taste, this extended extraction changes the balance of the cup. A standard espresso is prized for its concentrated, syrupy body and intense flavor. A lungo, by contrast, is lighter in body and often exhibits a more pronounced bitterness. This is because the final stages of the extraction process pull out more of the bitter, woody, and astringent compounds that are usually left behind in a shorter shot. However, for the right coffee, this can also reveal a deeper, more complex sweetness that is masked in a shorter, more concentrated shot.

Whether a lungo tastes 'good' depends heavily on the coffee being used and the skill of the barista. If the coffee is roasted too dark, a lungo can quickly become harsh and burnt. If the coffee is a high-quality, light-roast specialty bean, a lungo can be a beautiful way to experience the full spectrum of the bean's flavor profile, as the extra water helps to 'open up' notes that might otherwise be too concentrated to perceive.

In practice, if you are experimenting with lungos, start by adjusting your grind size slightly coarser than you would for a standard espresso. This helps to prevent the shot from becoming overly bitter due to the extended contact time. A lungo is a great way to enjoy a longer, more leisurely coffee experience without the dilution of an Americano, provided you have the right beans and the patience to dial in the extraction.