1, appearance characteristics: look at the shape of the tea leaves, to identify the tea body bones of the light and heavy and the production of work, including tenderness, broken, color, purity, and so on. General Xihu Longjing tea to flat and smooth, quite show sharp, even and neat, color and lustre green and fresh for the best. On the contrary, the appearance of loose and rough, body and bone light, tendons and veins exposed, color and lustre yellowish, indicating that the quality of low times.

2, aroma characteristics: take a bubble of tea in the palm of your hand, with a mouth gently ha a breath, and immediately be able to smell the original flavor of the tea leaves dry tea, Longjing tea has a flower, chestnut, fragrance, fragrance, high fire incense, if there is a strange smell, or fragrance is very light, it is very likely to be damp, or mixed with tea, a good Longjing tea aroma is strong.

3, taste characteristics: West take 3 to 4 grams of Longjing tea in a cup and bowl, into the boiling water 150 to 200 ml, 5 minutes after the first smell aroma, and then look at the color of the soup, taste the taste. Spring tea taste fresh, summer and autumn Longjing tea, dark green or dark green color, yellow soup color, there is a clear fragrance but rougher, taste thick slightly astringent.

4, soup color characteristics: soup color is a variety of pigments in the tea leaves dissolved in boiling water and the color, mainly to see the color, brightness and turbidity. Xihu Longjing tea soup color to clear and bright for good, soup color dark yellow for second.

5, the bottom of the leaf characteristics: tea with a glass cup bubble open, stand still to be the tea leaves stretch to see whether the tea broth is clear and bright, the leaf bottom green and shiny. If the tea broth is cloudy, there are impurities in the bottom of the red edge of the leaf, then this tea is more inferior.

Expanded

Longjing tea is known for its color green, beautiful shape, fragrance, taste mellow crown the world, its unique "light and far away," "fragrance and clear" of the world's charm and extraordinary quality, unique among the many teas. Its unique "light and far", "fragrant and clear" and extraordinary quality, unique among many teas, ranked among the top ten famous teas in China.

Longjing tea picking has three major characteristics: an early, two tender, three diligent. Tea farmers often say, "tea is an hour grass, early picking three days is a treasure, late picking three days into grass." Longjing tea is also known for picking tender, fresh leaves tender uniformity constitute the basis of Longjing tea quality. Diligence refers to the picking of large and leave small batches of picking, picking in about 30 batches throughout the year.

Traditional Longjing stir-frying has ten major techniques: throwing, shaking, hitching, inciting, iconoclasm, dumping, grasping, pushing, buckling and pressure grinding, and there are different stir-frying techniques for different quality of tea leaves. Because of the ecological conditions of origin and the difference in frying technology, West Lake Longjing has "Lion", "Dragon", "Cloud", "Tiger", "Plum" and "Plum". "Plum" five categories of difference.

The special grade Longjing tea is flat, smooth and straight, the color is tender green and moist, the aroma is fresh and clear, the taste is fresh and sweet, and the bottom of the leaf is tender.

Baidu Encyclopedia: Longjing Tea