If there’s one thing that even the latest of wine-drinkers can state confidently it is that wine improves with age. The more you keep the bottle in the basement, the better it'll taste when you finally pull the cork and start drinking. Like most rules, it’s one that is customarily best damaged.
The period of time that you must cellar wine will depend primarily on the grape but also on the wine itself, its quality and even its vintage. If that makes things difficult, there are one or two laws that you can follow.
Cabernet Sauvignon
Cabernet sauvignons usually basement very well. A couple of years is mostly a good period of time to keep a cabernet sauvignon but superb wines, including those from Coonawarra in Australia, can keep for years if the vintage is right.
Riesling
Riesling grapes are utilized in some of the longest-kept white wines and can still taste lively decades after bottling. An Australian riesling will develop well over the course of approximately ten years and while they can be drunk straight away should truly be cellared for a minimum of three years.
Chardonnay
Chardonnays typically improve for about 2 or 3 years after bottling but quality is essential for this white wine. A cheap wine should really be poured right away while top-end chardonnays are prepared for drinking after no more than 3 years.
Sauvignon Blanc
Sauvignon blanc wines don’t age well. Once you've reached the 2 year mark, the wine is perhaps about as good as it will get and that's almost certainly true after 5 years. The exceptions are 1 or 2 truly excellent wines but for the most part, expect to be pouring your sauvignon blanc as fast as you purchase it.
Merlot
Like sauvignon blanc, a good rule of thumb is to enjoy your merlot as fast as achievable. That's because most merlots are produced in large numbers and the majority are reasonably straightforward, the kind of wine that is not very likely to become more complicated over a period. As with other grape variations, there are always exceptions though and a great vintage can be better after 5 years and a few can cellar for as long as 25 years.
Pinot Noir
One or two pinot noirs have been seen to age well over decades but it's not something to try at home. Most will be ready for drinking as fast as they are bought and 1 or 2 might cellar well for as much as 5 years. Generally though, pinot noir wines are best drunk sooner rather than later on.
This valuable content was provided by Interesting Winesand describes How Long to Cellar Varieties of Wine
