Then, how hard a factory is to acquire a top 5-star award? According to the data officially released in 2017, only 26 tea manufacturers acquired the 5-star award among 321 ones nationwide, while other 28 ones got the 4-star award. Now, PinCha would be able to proudly announce that we use the 5-star Taiwanese tea to make our drinks! How cleanness of the 5-star tea factory? Let's check the pictures shared above.