The milk tea you bought can still be drunk after four hours, but the taste will not be as good as when you first bought it. The longer you put it, it is easier to breed bacteria, so you can drink it as soon as possible.
Milk tea was a drink in northern China, mainly made of milk, tea and sugar. Later, after development, it has gradually become a favorite drink all over the country, especially among young people.
Later, there were more and more processing methods of milk tea. Different seasonings can be added to adjust the taste of milk tea. The newly bought milk tea should be drunk in time. After unsealing for a long time, many bacteria will breed.
However, milk tea can not be drunk frequently. The raw materials used in milk tea shops in many streets are not authentic milk, but creamer and some instant milk tea. The pearls inside are also some gelatin plasticizer. Drinking such milk tea for a long time will cause harm to the body.