Pu-erh tea is a kind of healthy beverage, which not only has a long history of chinese tea, but can help us reduce fat and lose weight. The cooked tea can keep the stomach fit and warm it, while the fresh tea has a better effect on weight loss than the cooked tea, on account of its strong taste.
As for the ripened pu-erh tea, pile fermentation must be mentioned. It was successfully experimented by Yunnan tea factory in 1973 and made a great contribution to the reputation of pu’er tea. The core technique cannot be exposed in public, which has been a hot topic discussed in part time.
Simply speaking, pile fermentation is the process of chemical reaction between beneficial bacteria and sunlight-dried primary tea by fermenting. It can make the fresh-cut sunlight-dried primary tea become soft and have a mild taste. It also can make pu’er tea have a mellow and rich taste. In the mysterious process of pile fermentation, what happens on earth?
From the microcosmic perspective, there are such main microorganisms in the mysterious process of pu’er tea’s pile fermentation: Aspergillus niger, Penicillium, Rhizopus, Aspergillus gloucus, Saccharomyces, and Bacterium.
Since Rhizopus’s amylase activity is relatively high, it can produce organic acid and fragrant Ester. The propagation of Rhizopus relates to the softening of tea leaves in pile fermentation. It also can help pu’er tea be sticky and smooth, rich and mellow.
In the process of pu’er tea pile fermentation, the antagonism among microorganisms results in the fact that there are a few bacteria and no disease-causing germs. The mass propagation of Saccharomyces and Mycetes can limit the growth of germs. Meanwhile, the domestic and foreign researches indicate that Tea Polyphenol can limit the propagation and growth of such germs that are pestilent to human beings and animals.