What exactly is mead ?
Mead is a wine made from honey, instead of grapes. It is also the oldest alcoholic beverage known to man predating both beer and traditional grape wine by THOUSANDS of years.
What does mead taste like ?
That is a question with many answers. Mead can vary in sweetness ranging from sweet, semi-sweet, to dry (not sweet). Flavors in mead can also vary with the addition of fruits, juices, and spices. Also, just as with grape wine, mead can vary in flavor and aroma quite a bit depending on the varietal of honey used. In the end, mead can be whatever you want it to be.
How long can mead last for ?
Mead can last and be aged for as long as you can manage not to drink it! Honey happens to be the only food in the world that never spoils, and being a major component in mead, it allows the wine to age very nicely for even 20+ years! Because of this, a bottle of mead can also be "poured and stored" without losing much of its integrity due to oxidation.