There are several reasons that most cafés use a special coffee bean or espresso blend instead of just pulling a shot of that light roast third wave coffee.
In this video I explain why certain coffees work better for this brew method.
This is what I call the “espresso paradox”.
There are also other reasons why espresso beans are usually different from regular coffee beans.
TRADITION: Espresso has always been roasted darker than other types of coffee. People have come to expect a certain ‘espresso flavor’ than can’t be achieved with regular beans.
MILK DRINKS: If you want to use the espresso in a milk-based drink such as a latte or cappuccino, you’ll need a rather dark roast to cut through the creaminess of the milk. This is important!
CHEAPER: While single origin coffee increasingly has become the way to go when it comes to pour over, espresso blends are still quite popular.
Single origin coffee is expensive. For that reason, it makes sense to use a base of cheaper coffees from countries such as Brazil and Indonesia in the blend.