When it comes to espresso, you may hear your local baristas using the phrase “dialing in.” This saying is most commonly used in specialty coffee houses where you will find baristas taking incessantly loud sippings of espresso shots. Dialing in can typically occur first thing in the morning, with a freshly opened bag of coffee beans, or a coffee bag with a different roast date. We’ll get into the mechanisms behind dialing in espresso that can help you understand this chapter of your coffee journey.