The shelf life of plum brown sugar ginger tea is 1 year. The shelf life of individually packaged brown sugar ginger tea is about one year, but you can drink it as long as it does not exceed the shelf life. Ginger tea can effectively dispel cold, warm the stomach and strengthen the spleen, but it is best not to drink brown sugar ginger tea at night, which is not good for the stomach. In addition, brown sugar ginger tea can be drunk in spring and summer, which can effectively prevent the flu and can also be drunk properly in winter. Ginger brown sugar tea should not be drunk once a day, and it is best to drink it once every two to three days.