Tea knowledge, big leaf tea and small leaf tea
China is the origin of tea, and the existing tea products are diverse.
Among them, big leaf tea, small leaf tea is a type that is divided according to the size of tea leaves, and is a common name that distinguishes the leaf size of tea varieties. Generally, there are large leaf species, middle leaf species, and small leaf species.
Pu’er tea is a typical representative of big leaf tea. The main varieties are Pu’er loose tea, Pu’er tea, Pu’er brick tea, and seven son cake tea.
Commonly known green teas, mainly belonging to small and medium leaf species, such as Zhejiang, Anhui, Jiangxi, Jiangsu and other provinces, most of the tea areas are mainly small and medium leaf species, the famous tea produced is also processed by small and medium leaf species, such as West Lake Longjing.
From the chemical composition of fresh leaves of tea tree, the content of water extract of big leaf tea is 3-7 percent higher than that of leaf leaf, and the content of tea polyphenol is 5-8 percent higher than that of leaf leaf tea.
The flavor quality of tea has an important relationship with the tea. The polyphenolic taste of the tea is bitter, the amino acid tastes fresh and sweet, and the coffee is alkaline and bitter.
The tea polyphenols, caffeine and other effective substances contained in the big leaf tea are decomposed, and the tea taste is strong, but the taste astringent is slightly stronger; the small leaf tea carotene and the high lutein content can produce high-fragrance tea.