@beecurious
Matcha can be either koi or usui and they call it ceremonial grade in English but there is no such thing in Japanese as a category itself. There are many shades and grades of matcha from the first season to last but I think is becoming more a marketing point to sell it. Normally matcha with hot water is a bit heavy on empty stomach. Matcha latte too a bit heavy for breakfast. I drink sencha or jasmine tea instead every morning. and sencha is especially good for upset stomach.