Quality control for scented tea cannot rely on appearance alone. The process summarized from company materials includes four levels: sensory evaluation, physicochemical testing, hygiene indicators and impurity removal.
Impurity removal may include screening, air separation, electrostatic removal, color sorting and metal detection. Color sorting helps remove abnormal color materials, tea stems and visible foreign matter, while metal detection is used as a critical control point before final packaging.
For international buyers, this gives a clearer basis for discussing specifications, sample approval and repeat-order quality standards.