Why is water quality crucial in coffee brewing?

Water quality is crucial in coffee brewing because it directly affects the taste of the coffee. Water makes up a significant portion of coffee, often over 90%, so its composition can greatly influence the extraction of flavors during the brewing process. Good quality water should be free from impurities and have balanced mineral content to enhance the natural flavors of the coffee beans.

For instance, if the water contains too many minerals or contaminants, it can lead to undesirable tastes, such as bitterness or a chalky aftertaste. Conversely, water that is too soft may not extract flavors effectively, resulting in a lack of depth and complexity. Therefore, the right balance of minerals in the water can help highlight the unique characteristics of the coffee, allowing for a rich and pleasant taste experience that reflects the quality of the beans used.