Puerh tea can be re-drunk after overnight for no more than 12 hours.

The tea brewed the night before is usually not a big problem if you drink it the next morning. Pu-erh tea is rich in tea polyphenols and vitamin C. The oxidation of the tea polyphenols produces the tea pigment that turns the tea reddish-brown, which reduces the amount of vitamin C, but you can still drink it. In addition, you can use boiling water to filter two times.

After 24 hours of overnight Pu-erh tea, the tea itself is not likely to be affected, but the tea polyphenols and other nutrients may be oxidized, and caffeine may be concentrated. However, the tea broth is prone to bacterial growth, and spoiled tea broth may contain ammonium nitrite, which is not recommended to drink again.

Puerh tea brewing skills:

1, the new ripe Pu after a long period of Ottoman fermentation, brewing, the water temperature should reach 100 ℃, in order to ripe tea smooth, smooth, sweet, fragrant, mellow character play out. However, the brewing time should not be too long to avoid the emergence of bitter and astringent flavor. Some slightly less fermented tea can be appropriate in the first three flushes half-open lid, in order to maintain the fresh sweetness of the tea soup, but also open the lid is also conducive to the dissemination of ripe flavor.

2, the old tea after precipitation, has entered a smooth state of quality smooth, the first few bubbles can be quickly out of the soup, after a few bubbles can slowly extend the time. High-quality old tea can be brewed more than seven or eight or even ten bubbles, you can slowly experience the changes in each bubble.

3, relatively speaking, the amount of old tea is lower than the amount of old tea, and the brewing water temperature is slightly higher than the old tea. For many of the old raw tea, in the bubble and bubble intervals to open the lid, so that the bottom of the leaf slightly cooled down and then renewed, there will be a different feeling. Low-stroke water injection, boiling water brewing, properly smothered.

Reference to the above? Baidu Encyclopedia-Puerh Tea