Espresso machines can use the same type of coffee beans as regular drip coffee machines, but they need to be ground differently. Traditional drip coffee machines use a coarser ground bean, allowing for water to flow more easily through the grind. Espresso machines, however, need a much finer ground bean, and the water flows more slowly, creating a thicker and stronger brew. Many espresso machines come with a grinder attachment, taking the guesswork out of correctly grinding your beans.