What quantity of espresso is in a ristretto?

A ristretto is an espresso made with a smaller amount of water, typically using the same amount of coffee grounds as a regular espresso but resulting in a shorter extraction time and volume. This method yields a more concentrated flavor profile and a sweeter taste, as it captures the finer, sweeter notes of the coffee.

The appropriate quantity for a ristretto is generally around 15ml. This smaller volume allows the extraction to focus on the initial flavorful compounds in the coffee, showcasing its unique characteristics without the more bitter notes that can come from longer extractions.

In contrast, a regular espresso usually measures around 30ml, while larger servings like 45ml or 60ml would not fit the definition of a ristretto, which emphasizes quality and intensity over quantity. This focus on concentration is what distinguishes a ristretto from other coffee preparations.