How to Properly Store Tea
The biggest enemies of tea are Air, Moisture, Light, and Heat. These elements cause degradation, which adversely affects the flavor of the tea. Loose tea can be stored for up to 1½ years in an airtight container that does not allow light to penetrate through, without any ill affects on flavor or quality. Tea bags can be stored for up to 6 months without any adverse affects on the quality of the tea.