An effective method to keep tea fresh over a long period is to protect it from oxygen and water. Although they cannot spoil tea, oxygen and water do take away the tea’s flavor and make it unsavory to consume. An economical and effective method to keep oxygen and water at bay is to package and store tea in resealable stand up bags.
Stand up pouch bags are made from several scientifically designed films. These films are made from different materials. Films of plastic provide rigidity to a pouch, while anti-oxidation films protect the tea inside a pouch from oxygen. These films are laminated together to make a strong barrier against oxygen and atmospheric moisture. This kind of packaging for tea is effective at protecting it from its two primary enemies and thus preserving its freshness for long.
If a stand up pouch has accessories such as zip locks, this ability is extended. Resealable pouches allow consumers to store tea in packaging long after it has been opened. A quality reseal is nearly as effective as the original packaging.
To sum it up, stand up pouches are the best method to preserve the freshness of tea until a consumer has bought it. Addition of accessories such as zip locks extends this ability, and keeps tea fresh for as long as it is in there.