Tea bag is a kind of finished tea, also called tea bag or tea bag. It is made by putting ground tea into a small bag made of filter paper, with a line on it. After brewing, it can be easily Throw away the remaining bags. Another advantage of tea bags is that they can be blended with a variety of tea leaves to find a suitable taste. Tea bags produced in the UK are generally blended with tea purchased from all over the world. Tea bags are gradually becoming popular in hotels, banquets and other occasions because of their convenience and in line with modern people's consumption habits.

Americans are used to using small bags, one bag for one cup, while British and Canadians are used to using large bags, one bag for one pot.

Tea bags were first accidentally invented in 1908 by an American tea importer named Thomas Sullivan. He wrapped the tea leaves in silk bags to display the goods to buyers. Customers mistakenly put all the tea leaves into the teapot together with the bags, and believed that Thomas Sullivan had the same intention. So the tea bag was invented.

Tea bags were mass-produced commercially in the United States in the 1920s, and the material of the bags changed from silk to gauze, and finally to paper. In the 1960s, tea bags gradually became popular in the UK. Today, 85% of tea consumption in the UK is in the form of tea bags.

A good tea bag must have enough space inside the bag for brewing, so that it can be comparable to loose tea. However, tea bags are often labeled as inferior because of the low-quality tea leaves - small, dirty, and messily mixed tea leaves, which release more tannins during the brewing process, making the tea taste more astringent.

Generally speaking, tea bags are square or rectangular. Recently, round and triangular packaging have appeared on the market and become common. Manufacturers have claimed to have improved the quality of tea bags more than once, but people have doubted whether they have really made key improvements.

Many people believe that making tea with loose tea leaves can make better tea, and believe that making tea is a wonderful enjoyment. Tea bags, on the other hand, rarely or completely fail to provide these not only physical but also spiritual functions. Blending your own tea leaves and brewing loose tea allows you to be more creative than tea bags.

The manufacturing concept of tea bags was introduced by some coffee manufacturers and applied to coffee. Although its market penetration is not that large and broad (in sharp contrast to instant coffee).

Tea bags are generally packaged in paper or tin foil, and have trademarks and other information printed on them. Nowadays, some people like to collect tea bag packaging.