Sustained-release tea-containing plastic grains and preparation method thereof

The invention discloses sustained-release tea-containing plastic grains and a preparation method thereof. The sustained-release tea-containing plastic grains mainly comprise the following components in part by mass: 10 to 40 parts of tea powder, 50 to 80 parts of adhesive and 5 to 10 parts of foaming agent. Fine and dense pores are formed in the grains formed in the invention, so the tea powder in the grains can function, and the adhesion by the adhesive ensures the sustained-release effect of the active ingredients. As fillers, the sustained-release tea-containing plastic grains can reduce the consumption of tea leaves, have long service life and lower the requirement on the external material of tea health-care products.