This depends on the matcha grade you are using and your own personal preference. There are two main grades of matcha: - Ceremonial grade (the highest quality matcha) - Culinary or food grade, which covers various sub-grades such as premium, cafe, ingredient, kitchen, and classic. When you buy ceremonial grade, it's recommended to use only hot water to do justice to the flavor and quality. Culinary-grade matcha is perfect for use in recipes or dairy-based and sweetened beverages like a latte.