Why Does Pu-erh Tea Become Turbid or Sour After Cooling?
Why Does Pu-erh Tea Become Turbid or Sour After Cooling? When Pu-erh tea cools, two phenomena may occur: turbidity and sourness. Turbidity occurs because the complexes of thearubigins, theaflavins, and caffeine in good tea precipitate when the temperature drops below 40°C, making the tea soup cloudy. Sourness, on the other hand, is considered an undesirab...

Tea News · Nov 30, 2025