Unless a bottle of sauvignon blanc has been aged in an oak barrel, there is little need or desire to age the bottle. Wines age well when they are fermented with grape skins, which increases the amount of tannins and helps improve the taste and complexity over time. After five to seven years, your sauvignon blanc may take a downward trend, and it’s unlikely that waiting even a couple of years would change it much for the better. However, some siblings of sauvignon blanc, like chenin blanc, may last a decade and develop some interesting characteristics. In short, there is no need to wait on sauvignon blanc. You can (and should) enjoy it immediately.