Most powdered sweet matcha mixes are stirred into warm or cold water and then combined with milk or a milk alternative for a latte. Liquid concentrates are typically mixed about half-and-half with milk (or adjusted to taste). Both powdered mixes and concentrates can be heated for a hot drink or poured over ice for an iced matcha.
Sweet matcha powders work well in lattes, smoothies, ice cream and baked goods. For baking, product guidance suggests about 1–3 teaspoons of matcha per cup of flour. You can also make a concentrated "matcha shot" by whisking a small amount with hot water and then mixing it into milk or a recipe.
Caffeine levels vary by product. Product details in the selection report ranges such as about 16–30 mg, 16–24 mg per serving, and a note of roughly 34 mg per half-teaspoon (1 g). Check individual product labels for exact caffeine per serving.