What is the primary purpose of grinder calibration?

The primary purpose of grinder calibration is to achieve optimal grind size for specific brewing methods. This is crucial because the extraction of flavors and compounds from coffee beans during brewing is highly dependent on the grind size. Each brewing method—such as espresso, pour-over, or French press—requires a different grind size to optimize the extraction process and create the desired balance of flavors.

For instance, a finer grind is necessary for espresso to allow for quick and efficient extraction, whereas a coarser grind is suitable for methods that require longer extraction times, like cold brew. Proper calibration ensures that baristas can consistently deliver a beverage that meets quality standards and customer expectations. This ensures that flavors are unlocked appropriately, leading to a better tasting cup of coffee.