We hope you had a wonderful winter holidays. :) 2020 was very difficult time for all of us. We still can't be optimistic but as the saying goes, the darkest hour is just before the dawn. The sun is rising soon!
There is no definition for culinary / cooking grade Matcha. Conscientious tea companies are using low grade Tencha, which is not suitable for drinking, to make culinary grade Matcha by either stone mill or machine. Therefore, the price of the tea is much cheaper than authentic high grade Matcha. In Japan it is said that only one third of Matcha (including culinary / cooking grade Matcha) is made from Tencha. So what is the left of them? They are green tea powder made from Sencha (most common Japanese green tea). Therefore they are not Matcha technically.