By using an excellent green tea as material, storage experiments which lasted 1 2 months were carried out. The results showed that the main physical characters, contents of quality components and sensory quality of the excellent green teas were declined after they were stored for 10 months under different temperatures. The values of L, T640 of the tea liquor declined continuously while the values of a, b increased continuously and quickly. The content of quality components, such as amino acid, tea polyphenols, caffeine, water extracts, total catechins, simple catechins and estered catechins al...