Old white tea, white tea that has been stored for a certain number of years. However, for the color of the old white tea soup, some friends may have questions, what is the color of the old white tea soup?
GB T 23776 2018) specifies the preparation method of tea soup: take tea samples 30 g or 50 g tea water mass to volume ratio 1:50, placed in a teacup, filled with boiling water, covered, timed for 5 min, filtered out of the tea, left the bottom of the leaf in the cup, and evaluated.
White tea is divided into Baihao Yinzhen, white peony and Shoumei, including the different storage environments, so the soup color of the aged old white tea is not uniform.
Yellow-green, apricot yellow, orange-yellow and orange-red colors may be the color of white tea.
The color of the tea depends on the ripeness of the fresh leaves and how they are processed.
The polyphenolic compounds mainly catechins in tea soup will be catalyzed by polyphenol oxidase and peroxidase during the withering process, and oxidized into orange-yellow theaflavin, brown-red thearubigin and dark brown theabrownin.
These oxides are water-soluble, and some of them combine with proteins to form insoluble substances during the withering and drying process of white tea.
And part of it dissolves in the tea soup to form the apricot yellow or orange yellow soup color of white tea tea soup.
Therefore, the color of the soup color of old white tea is related to the quality, but it is not appropriate to directly judge the quality by the color of the soup, and whether it is clear is the key to judge the quality of white tea. For good white tea, the soup color must be clear, except for the turbidity caused by the tea.
The clarity and clarity of the tea soup is directly proportional to the content of soluble pectin and other substances, and soluble pectin and other substances will also increase or decrease in the withering process of white tea, so the high-quality white tea tea soup is clear and translucent.
The taste of the drink is smooth and mellow, the soup is obvious, and it will show a charming lotus leaf fragrance, jujube fragrance, fruit aroma and other substances, and a good sense of layering.
Every time I drink old white tea, I have the feeling of "beggar appearance, emperor body".
Therefore, about what is the soup color of old white tea, in summary, the color of white tea soup is better to be tender yellow, clear and bright, light yellow, dark yellow, orange yellow or orange yellow with a slight redden, all belong to the normal soup color, if there is dark yellow and turbid tea soup, it is an abnormal manifestation of white tea tea soup.
White tea