Including shades, turbidity, freshness and darkness, and the presence or absence of free matter and sediment. Regardless of any green tea, the green tea is green, clear and bright, and the water color is strong. Those with yellow turbidity and dullness, or with free sediments, are not good products. But sometimes in order to meet the needs of consumers, the color of water should be yellow but not green, which is another matter. When identifying the color of the water, the cup must be tilted slightly from time to time to pay attention to whether there is any free matter.
