What kind of tea is the heart of Fenggang tea sea?

Zinc selenium tea is because the soil contains natural zinc selenium trace elements, which are naturally absorbed into tea by planting tea trees. Zinc and selenium precipitated by tea soaking are easily absorbed by human body and naturally have no toxic or side effects. Fenggang zinc selenium tea is not only rich in 17 amino acids needed by human body, but also rich in zinc selenium trace elements. Its zinc content is 55.4- 103.2 mg/kg, and its selenium content is 1.38-2.03 mg/kg, which is the best suitable amount for human body.