If the overnight milk tea is in a sealed state, put it in the refrigerator and take it out the next day to see if it has not deteriorated. It is generally drinkable. However, if the milk tea has been consumed directly by mouth, or the milk tea has been left at room temperature for too long, it is not recommended to drink it after overnight.

In addition, unopened milk tea should not be left for more than 24 hours, especially in high-temperature environments. If the milk tea is placed directly at room temperature, it is recommended to drink it within 3-4 hours. However, if it is placed in a lower temperature environment such as a refrigerator, its shelf life can generally be extended to more than 10 hours. However, the longer the milk tea is left, the worse it will taste. Therefore, in order to enjoy the best taste, it is recommended to drink the milk tea as soon as possible.

Milk tea classification:

1. Mongolian milk tea

The Mongolian Plateau is the hometown of nomadic people and the birthplace of milk tea. The original and most authentic one was Mongolian milk tea. Mongolian people like to drink hot tea. In the morning, they drink tea and eat fried rice. They keep the remaining tea on a low fire to warm it for drinking at any time.

2. Pearl milk tea

Pearl milk tea, which is popular in Taiwan, adds powder balls to the milk tea. The cooked powder balls have a black and crystal clear appearance, so they are named after "pearls". You can also add a variety of ingredients to create different flavors according to your own preferences.

3. Xinjiang milk tea

The raw materials of milk tea are tea and milk or goat milk. The general method of making milk tea is: first mash the brick tea, put it into a copper pot or water pot and boil it. After the tea boils, add fresh milk. While it is boiling, use a spoon to stir the tea until the tea milk is fully blended. Remove the tea leaves and add salt. Serve. But there are also those that don’t add salt, just keep the salt around and add the amount of salt according to everyone’s taste. Xinjiang milk tea is not as salty as ordinary milk tea, so everyone likes it differently.