Tea is a very healthy beverage, but many people have only a superficial understanding of tea knowledge. For example, they are reluctant to throw away overnight tea and continue to drink it. In fact, such a habit not only affects health but also accelerates human aging.
If brewed tea is left for too long, trace amounts of substances like amino acids and sugars become nutrients for the growth of bacteria and mold. Once these harmful microorganisms are present in the tea, it is prone to spoilage, and drinking it can affect health. Moreover, nutrients in the tea, such as tea polyphenols and vitamins, will undergo oxidation due to prolonged storage, leading to a decrease in the antioxidant components. This significantly reduces its nutritional and health value. After oxidation, these substances can turn into free radicals in the body, accelerating the aging process.
Therefore, while tea itself has antioxidant properties, drinking overnight tea can have the opposite effect. To fully enjoy the benefits of tea and experience its true flavor, it is best to drink it immediately after brewing. Do not drink overnight tea.