If it is really 30 years, the raw tea is at least 50,000 yuan, and the cooked tea is about 30,000 yuan (according to the latest price). I don't know if I can be in Shanghai, so I want to learn from it. (Xiao Sheng works in an old Pu 'er tea house)
Have you got any pictures? Take a picture (tea cake, outer packaging) next time, and I will get it right.