The quality of HO used in espresso preparation significantly impacts the final beverage’s flavor profile, aroma, and crema. Using appropriately treated HO, free from impurities and with the correct mineral content, ensures optimal extraction of coffee compounds and prevents damage to the machine.
Optimal brewing HO not only enhances the taste and aroma of espresso but also plays a crucial role in machine longevity. Untreated HO can lead to scale buildup, which can clog internal components, reduce efficiency, and ultimately shorten the lifespan of the espresso machine. Historically, espresso preparation has always emphasized the use of quality ingredients, with HO being a key element considered long before the advent of modern espresso machines.