While corks seem to be made of solid material, they are actually made up of hundreds of air pockets which allow air to pass through. If not kept moist, cork will dry out, shrink and become brittle. Cork is compressed into the neck of the wine bottle to make as tight a seal as possible against the glass, allowing little air to penetrate into the wine. Allowed to dry out, the cork will shrink, air will enter the wine and turn the wine sour or into vinegar – quite undrinkable.
1) Bottle Angle DO NOT STORE WINE BOTTLES UPRIGHT! An easy (and cheap) way to keep the cork wet is to lay the wine bottle on its side horizontally and slightly tip the bottle neck downward enough to completely cover the bottom of the cork in the wine bottle neck. This will keep the cork moist and air away from the wine.
2) Moisture Easiest done in a small enclosed environment, use a humidifier to keep the ideal humidity of 70%. If you can’t get it exactly at 70%, try to keep the humidity between 50% and 80%. This will keep corks moist and air away from the wine.
Since wet corks are full of air pockets and will absorb surrounding odors, you must be concerned about the odors in the air around the corks.
AIR QUALITY Keep the air clean and odorless to prevent the cork from absorbing any strong odors (such as fried onions or garlic from the kitchen) or musty smells (from a damp basement) and hence, tainting the wine.
Best Solution: Use a circulating fan.
Part 3: Moving Wine