HOWEVER, that doesn't mean that it tastes the same every time it's steeped! Quite to the contrary, some particularly patient teas (notably rolled / semi-balled oolongs) will exhibit very different flavors over multiple infusions.
Here's an example of how the flavors of a light oxidation, light roast, semi-balled oolong might evolve over five infusions:
- Light, sweet, floral
- More body, more aroma
- Less aromatic, but sweeter and creamier
- More vegetal
- Less floral and sweet, but still complex and flavorful
Aged teas, such as aged pu-erh teas and aged oolongs, tend to have a lot of patience when brewed. (Perhaps they're willing to take a little longer to let go of their flavors after so many years of waiting to be steeped!)