A tea bag is a small, sealed bag of porous paper, tissue, or nylon containing tea leaves, usually finely chopped, in the amount needed to brew a single cup of tea. The bag holds the tea inside while brewing, making it easier to remove the leaves, thus performing the same function as a tea infuser. Some tea bags have a piece of string attached with a paper label at the end for easy removal and also to identify the variety of tea.
According to reports, German scientists say that tea bags contain ingredients that could be harmful to human health.
German researchers say the paper from which the tea bag is made contains substances harmful to human health and in some cases can cause cancer.
According to the research report, the tea bags of 6 companies were examined in different ways, three of which were expensive and three of which were cheap. The results showed that they contained at least four ingredients that kill insects that are included in medicine. Research has shown that a substance called epichlorohydrin is included in the paper which is used to make tea bags and this is what makes it harmful to health.
According to German scientists, wrapping tea bags in bags and dipping them in boiling water contains harmful substances that can cause cancer. Research has shown that using tea leaves directly is better than using tea bags.