Yamuzen was ranked first in the manufacturing sector of the leaching tea of the Korean Consumer Satisfaction Index, which was chosen by Korean consumers in 2022, hosted by Hankyung Business and G Valley News. a. we manufacture 18 kinds of raw materials, not a single tea or a simple mixture of several raw materials, b.We try to combine various elements such as herbs, stems, roots, and grains in a basic pair base by interpreting the wisdom of the herbs of our ancestors in a modern way.c. the processing of raw materials is not processed only by machines, but by completely manual work; d.This is the result obtained by adding that the tea produced last time is effective and responsive to customers.