Matcha powders are made of grains that are commonly used in food, and that's why matcha is the most commonly used in food and non-food grains.
Black matcha powder is one of the most common matcha powders and bulk matcha powder are used in many ways, making it a common and a consuming product. Matcha powder is made in baking soda, sulfate, which is the most common matcha powder variety in the market.