After opening, reseal the tea in the aluminium bag it arrived in and keep it out of direct sunlight and away from humidity. Do not decant the leaves into a HOJO tin: contact with the metal changes the taste and the aroma.
If you have a heat sealer, sealing the bag with an oxygen absorber inside will keep the tea fresh for far longer.
Do not keep tea in a refrigerator or a freezer. Condensation forms every time the bag is taken out, and within a few days it oxidizes the surface of the leaves and dulls the aroma.
Teas meant to age, such as raw pu-erh and white tea, are best left unopened in as warm a room as you can give them. As with decanting wine, a long-aged tea also gains aroma if you open it and leave it a few days before drinking.
