Why the more good tea is drunk, the weaker it is, black tea and Pu’er tea, how to brew it well

In the European tea market, whether at high-end black tea tasting events or on everyday supermarket shelves, you may have already come into contact with various black tea wholesalers and Pu’er tea wholesalers. But have you ever encountered such pain points: fluctuating quality, snail-paced delivery, anxiety during customs clearance, or suppliers who know nothing when…