Coding application of commercial tea

There is a long record of tea drinking in Chinese history. It is no longer possible to find out exactly what age it was, but there is a general age. And you can also find evidence that the habit of drinking tea in many places in the world was passed down from China. Therefore, many people think that tea drinking was first created by the Chinese. The tea drinking habits and tea planting habits in other places in the world are directly or indirectly passed from China. of.

As China’s oldest culture, it is still being passed on. There are many types of tea on the market, and the prices vary. , Then how to determine the products that consumers have bought

genuine products?

Take a look. The new tea leaves are tender green, the old tea leaves are dark green, the edge of the leaf is serrated, with 16 to 32 pairs of teeth, the tip of the leaf is concave, the tender stem is oblate, and the back of the leaf has white velvet

The hair, the shape is tight, the delicate tea leaves have tendon stems, the color is yellow-green, clean and uniform, and the flowers are dry and yellow-white; fake tea leaves, without the above obvious characteristics, the color is stagnant, look at the water color,< /p>

The color of the bottom of the leaf is neither as bright as black tea nor emerald green.

Second burning. Take a few pieces of tea and ignite it with fire. The real tea has a rich fragrance. Use your fingers to crush the ashes and smell the tea. The fake tea has a peculiar smell but no tea fragrance. It's best to compare with genuine tea and tea leaves to be discerned.

Three bubbles. Take a handful of tea leaves to be distinguished and a handful of real tea leaves, brew them twice with boiling water, and take a close look at the soup. Soak for 10 minutes each time. After the leaves are fully soaked, place them in two white porcelain clear water dishes to carefully observe the characteristics of leaf shape, leaf veins, and sawtooth. True tea leaves have obvious net-like veins. The main vein shoots directly at the top, and the lateral veins extend to 2/3 of the leaf margin. Branch veins are united. There are white hairs on the underside of the leaf, with prominent serrations on the edge of the leaf, and sparse serrations at the base. The leaf veins of fake tea leaves are not obvious. One side vein is straight to the edge, and some have white hairs on both sides, and the edge of the leaf is obviously jagged, or the jagged teeth are thick.

Four checks. The spray code on the package is used as the ID card of the product. The specific information of the tea can be queried through the spray code, and the spray code should be clear and firm, not easy to be wiped off.

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