Yunnan Pu 'er tea originated in the south of Yunnan Province and is a famous big leaf tea in China. It has a long history, dating back to the Tang Dynasty, and is deeply loved by tea drinkers. The quality of Pu 'er tea is influenced by many factors, such as climate, soil, altitude, water source and artificial tension. Therefore, different producing areas will make Pu 'er tea show different characteristics in taste, aroma, color and taste.

In recent years, Pu 'er tea has become one of the hot categories in the tea industry, and its market price is also rising year by year. Among them, because of its unique post-fermentation technology, it is considered to have the effects of reducing blood fat, losing weight, relieving alcoholism, promoting digestion and resolving stagnation. In addition, the collection value of Pu 'er tea is also highly sought after, and many collectors and investors regard Pu 'er tea as the investment target.

However, in order to make huge profits, some unscrupulous businessmen will exaggerate the efficacy and value of Pu 'er tea, sell fake and shoddy products, and even mix other impurities, which will affect consumers' trust in Pu 'er tea. Therefore, the quality and brand protection of Pu 'er tea has also become one of the key issues that the industry needs to pay attention to.