In Japan, these terms are not used. Matcha is, matcha. They have matcha for confectionery use. By labelling matcha culinary, latte and ceremonial grade, you remove all aspects of flavour from their tea profile and it is a blanket grading for each matcha. These terms were created for the western society to understand what matcha they could be using and where. Everyone has their own preference for flavour, some may like a strong and bitter astringent matcha, and that does not mean it is bad. We encourage you to try different matcha grades to find the one you enjoy.