Does herbal tea have tannic acid?

Tannic acid is a type of polyphenol that is found in many plants, including tea leaves, coffee beans, and grape seeds. It is responsible for the bitter taste of many teas and is also known for its antioxidant properties. Herbal teas are made from dried leaves, flowers, or roots of plants, and they can also contain tannic acid. However, the amount of tannic acid in herbal teas varies depending on the type of herb used. Some herbs, such as chamomile and peppermint, contain very little tannic acid, while others, such as black tea and green tea, contain more. Herbal teas that are made from a blend of different herbs can also have varying levels of tannic acid.