What is the difference in taste and quality between a 15 bar and a 20 bar espresso machine?

The difference in taste and quality between a 15 bar and a 20 bar espresso machine is minimal. Both machines can produce high-quality espresso with rich flavor and crema. The main difference is that a 20 bar machine may provide slightly more pressure, which can result in a slightly smoother and more intense flavor in the espresso. However, the difference may not be noticeable to everyone, and both machines can produce Excellent espresso.