Green tea is the least oxidized type of tea. That's why it has a nice green color and a fresh taste. However, it loses its freshness within 1-2 years, so we do not offer old, "tired" green tea. Oxidation also transforms the flavors and chemicals in the leaf. This type of tea refreshes and invigorates, and the 'theanine' in it has a natural calming effect. If you are more of a chilly type, we recommend that you only consume it in warm weather (and always after a meal)! You have to listen to what your body tells you! More about this in the blog post below or in person in our store...!