Wine Storage

You've just found this great wine, and think it would be the perfect bottle (or case) to set aside. You figure, "this wine has great staying power, and will been even better a few years down the road". So where do you store it? In the closet? On that wine rack on your kitchen counter? Or, do you have a cellar? I would venture to guess that most of you do not have cellars, so there are steps you can take, to make sure those bottles you set aside do live up to your expectations.

When I started collecting wine in the 80's my wine storage consisted of a plastic milk crate located in the basement of our house. I have no idea what the temperature was, but the wine held up pretty well. Later on, I expanded to a nice wooden wine display rack, that I located in my living room (this way I could show off some of my collection)....but the wine didn't seem to hold up very well. I ended up putting my best bottles in the closet in the center of the house (they did much better there). I learned the basics of wine storage by trial and error. Let me save you some steps, as well as help you save your wine. There are five things you should keep in mind, when storing your wine: 1) Temperature; 2) Humidity; 3) Light; 4) Vibration; and 5) Cleanliness.

Temperature - The most important thing is consistency of temperature. Think about it, heat makes liquids expand, and cold causes them to contract. If your temperature goes up and down, there is a danger of the cork (or any other seal type) failing. This would lead to oxygen entering the bottle, and your wine oxidizing.  There are ideal temperatures to store wine at. Whites are usually stored at lower temps than reds, so your storage range should be somewhere between 45 and 64 degrees. The ideal range is a little tighter: between 50 and 56 degrees (these are obviously fahrenheit). Keep in mind that the higher the temperature, the faster the maturation, and keep the temperature consistent. My cellar has one temperature, so I store my white wines on the lower racks and the reds higher up.

Humidity - with traditional sealing (corks) humidity is very important. Think about it...cork is bark from the cork tree, so the humidity of your storage area will affect the integrity of your seal. If it is dry, the cork could dry out, shrink, and expose your wine to air, and possibly leak wine out of the bottle. Too much humidity can also be a problem, causing mold to develop. Ideally, your humidity should be around 75% to 80%.

Light - have you noticed that most wine bottles are green, or brown? Not too many clear bottles out there. Reason...wine is photosensitive. In other words, it reacts to light. White wines will darken, and red wines will fade. If you save wine labels, the light will also fade your labels. Store your bottles in a dark location.

Vibration - wine is a living organism. Great efforts are made to treat the wine gently during the winemaking process, and the maturing process should be the same. Over time, the wine settles out. Those bottled without filtering will have sediment that needs to settle down. If you are constantly turning, and shaking, you may upset the desired physical changes. I store my bottles, label up, and with wine tags on the neck, so I don't have to pull bottles in and out to determine what is in the rack.

Cleanliness - store a bag of garlic next to your wine, and tell me what happens. How did that garlic smell get into everything? Trust me here, keep your wine in a clean, odor free, well ventilated area.

Besides storing your bottles, the only other thing I would recommend is keeping records of the wines you have stored. There are wine cellaring software programs you can buy, but I just keep all mine on an Excel spreadsheet. I keep track of the name, style of wine, vintage, purchase price, estimated "drink by" dates (based on my estimates, and write-ups in trade magazines) and my tasting notes.

So where do you store you wines?  Is it time to move them to a better location?

Wine: drink now or hold?

One of the most common questions I am asked, as a sommelier, is whether a certain wine is ready to drink now, or should it be stored away for later? Well, the answer will involve going back to my previous articles on tasting. If you are comfortable with the steps in tasting a wine, then you will have a better idea on how well a wine will age. 

First, if you are buying the wine at your local retailer, and have not tasted it, you should know that over 90% of all wines are produced and released, ready to drink. I heard somewhere that the average aging of a wine, purchased at a local retailer, is about 40 minutes (the time to drive home, and open). Another thing to understand is that it is just as easy to age a wine for too long, as it is to age it for too little time.This is where your expertise at tasting will suit you well.

Some general things to keep in mind: 1) expensive wines can usually age better than inexpensive wine; 2) red wines are more likely to improve with age, than white wines (but there are a lot of exceptions); 3) if not stored properly (a subject for another article) aging may actually ruin a nice bottle of wine.

So how do we determine the potential ageability of a wine? There is no definitive answer, but we can make an educated guess, based on our tasting profile, and those handy little vintage charts that are available in many wine magazines and websites. High rated vintages (year that the grapes were harvested) would give an indication of higher potential. When you taste, take note of the acidity, tannins, alcohol, and residual sugar levels. On those nose, take note of the primary fruit aromas, versus the more complex aromas of a developing bouquet.

In general, when you smell a wine, you may get a lot of fruit (primary aromas) on the nose. This is an indication of youth. As you move into more "non fruit" related aromas (called secondary aromas) these are signs of aging. Primary fruit, with no secondary aromas, might mean there is aging potential...but not always. As wines age, they gain complexity, while losing fruitiness. Most white wines are made to preserve and emphasize fruit aromas (and some reds like Beaujolais Nouveau for example) are meant to be drunk now. We need to look at some other factors, other than just smell. Tannins, acid and alcohol all have a role in determining a wines' future potential. All three of these components act as preservatives that prevent a wine from oxidizing. As wines age, chemical processes within the wine cause the tannins to soften and actually settle out as sediment. The trick with tannins is how they taste. I find that many tannins taste "green" to me, and I find that green tannins, stay green even with aging. Look for ripe phenolics in your tannins.  High alcohol in wine, acts to prevent the processes associated with oxidation (the main reason wines were fortified for long boat journeys back in the early days of wine export). Acid, like tannins and alcohol, is a preservative, but acts to balance the fruit component in the wine. Wines high in acid but with a strong core of fruit are perfect wines for aging. Over time, the acid will act to maintain the structure of the wine allowing the wine to age more gracefully. Just remember that acid does not change in the same way that tannin does. The wine will need more fruit to balance the higher acidity. Residual sugar also helps to balance acidity. This last point explains why white wines, like German Rieslings, and dessert wines (Sauterne and Tokaji, for example), age so well.

Oxidized Wine

One other thing to keep in mind is the size, or format, of the wine bottle. The standard wine bottle is 750ml. Each bottle will have a little head space of oxygen (known as ullage). Since oxygen is the greatest threat to aging, the amount of ullage in larger formats (1.5l or higher) versus regular sized bottles means less oxygen exposure. Larger formats age better.

Remember, that when determining whether or not a wine will improve with age, trust your tasting notes. Talk with your local retailer, or review the write ups in your favorite wine magazine to find out which wines have potential, then buy more than one bottle.  Store the wine properly and taste a bottle every so often. Make tasting notes on how the wine is developing and changing over time, and enjoy the journey!