Ceremonial matcha is generally considered the best matcha. It is from the first harvest of the season, and having less sunlight it has a lighter color and more delicate taste. Culinary grade matcha is any later harvest, which is a darker green and more bitter flavor- so it's best used in recipes where there is enough sugar or other powerful flavors to balance it. Mango is powerful enough that while I can taste the difference (I've made this both ways) it's good with both. That's nice because while ceremonial might be my flavor preference, culinary is my wallet's preference!