Half-and-half tea, also known as milk tea, is a popular beverage that is made by mixing tea and milk in equal proportions. The exact origin of this drink is not known, but it is commonly associated with East and Southeast Asian countries, particularly Taiwan, Hong Kong, and China. The drink is typically made with black tea, but other types of tea, such as green or oolong, can also be used. Milk is added to the tea to give it a creamy, rich flavor and to balance out the astringency of the tea.
Half and half tea express is a term that refers to a tea shop or a chain of tea shops that specialize in serving half-and-half tea. Some of these shops also offer a variety of other tea-based drinks, such as bubble tea, a beverage that is made with tea, milk, and chewy tapioca pearls.
It's also important to note that the term “half and half” can have different meanings depending on the context, and it's always good to ask and clarify the meaning before ordering.