The quality characteristics of Longcheng Begonia and Bai Cui are similar to those of Bai Cui, with straight lines, green color, lasting fragrance, clear soup color, fresh taste and even leaves. Picking pigeon pit seeds and buds and leaves of Fuding Dabai tea as raw materials, there are three grades of picking standards: super-strong buds, 1 grade, one bud and one leaf, grade 2, one bud and one leaf and a small amount of one bud and two leaves.
Fresh leaves are spread out for about 4 hours after entering the factory. After the technological processes such as deactivating enzymes, twisting, shaping, sieving and cooling, and hot pot drying, the dried tea is fried with 10 techniques such as pulling, rolling, grasping, shaking, throwing, kneading, grinding, spitting and dissolving. The shape is flat, the color is green, and it looks like cypress. The essence is elegant and lasting, the soup is clear and bright, the taste is mellow and fresh, and the leaves are yellow, green, bright and tender.
The results of physical and chemical analysis of Bai Cui by Wuxi Tea Research Institute are as follows: moisture 4.86%, tea polyphenols 3 1.67%, amino acids 3.96%, water extract 40.7 1%, ash 5.85%, powder 0.5% and crude fiber 5.34%. The detection of pesticide residues in this tea by Shanghai Commodity Inspection Bureau meets the national hygiene standards. 1996 "Bai Cui" tea won the third prize of Changzhou Science and Technology Progress Award.