We have already established that a 9-bar espresso maker is suitable for producing rich, flavorful espresso without bitterness. However, a 15-bar espresso maker allows you to experiment with more robust flavor profiles.
If you’re looking for a more intense espresso flavor, a 15-bar machine may be the perfect choice for you. However, remember that a 15-bar espresso machine is more powerful than a 9-bar machine and may be too much for some people.