Why is water quality important in coffee brewing?

Water quality is crucial in coffee brewing because it significantly impacts extraction and the overall flavor of the coffee. The minerals and compounds present in the water can enhance or alter the soluble substances in the coffee grounds during the brewing process, leading to variations in taste. For instance, the balance of minerals like calcium and magnesium can affect the extraction of flavors, oils, and aromas from the coffee, providing a richer and more complex cup.

Additionally, water that is too hard or too soft can result in an unbalanced extraction, leading to undesirable flavors, such as overly bitter or weak-tasting coffee. Consequently, using water with the right pH and mineral content is essential for achieving a harmonious and well-rounded flavor profile in the brewed coffee. This understanding underscores the need for baristas and coffee enthusiasts to pay close attention to water quality to ensure the best possible outcome from their brewing techniques.