Generally, the off-season of tea is summer. Why? Because any tea brewed in summer will have astringent taste, it will naturally become the off-season of tea if no one buys it. The rest of the spring, autumn and winter belong to the peak season, generally in spring and autumn, and the herbal tea you mentioned should belong to the health care category, which is generally prosperous in summer, because it is easy to get angry in summer, and many people buy this tea directly without taking medicine to reduce the fire, so you said that the peak season of this tea should be summer, and other seasons are relatively flat and not so weak!