What does 20 bar mean in coffee?

What does 20 bar mean in coffee?

This guide breaks down what bar pressure actually means and helps you choose between a 15 bar vs 20 bar espresso machine based on how you brew. Key takeaways: 15-bar machines brew at ±9 bars thanks to internal pressure regulators. The key takeaways are that temperature and 9 bar pressure tend to produce better and more consistent espresso outcomes.