So, what makes espresso beans so special? It all comes down to the roast level and grind size. Espresso beans are typically roasted to a darker level, which brings out the bold and rich flavors that are characteristic of a good espresso. The grind size is also crucial, as it needs to be fine enough to allow for the right amount of pressure to be applied during the brewing process.
Using a French roast or light roast bean, on the other hand, can result in a less-than-ideal espresso experience. It's like trying to put diesel fuel in a gasoline-powered car - it just won't work as well. The flavors will be off, and the crema might not be as thick and velvety as you'd like.
