What grade does tea belong to?

High-end grade. Richard Teahouse was established in August 20 13, with its headquarters in Guangzhou. Richard Teahouse and Tea Research Institute of China Academy of Agricultural Sciences jointly promoted the formulation and implementation of two industry standards, namely bagged substitute tea and bagged seasoning tea. Its core product is the original leaf triangle teabag, which is a professional tea service provider and a domestic high-end tea brand, so it belongs to the high-end grade.