Although this can depend on the type of wine you plan to store, most would agree the ideal temperature range is between 45° F and 65° F. 55° F is a generally safe temperature for storing a variety of wines. Always avoid extreme temperature fluctuations.
It’s important to remember that storing wine in a household refrigerator is OK for short periods, but if you’re looking for longer-term storage options avoid your refrigerator. Your household refrigerator temperatures routinely drop below 45° F to keep perishable foods safe to eat. Additionally, refrigerators tend to be less humid, which could eventually dry out corks and allow air to damage the wine.
When considering long-term wine storage, pay particular attention to light. Natural light or direct sunlight can degrade and age wine prematurely – not to mention make it too warm. Fluorescent bulbs do emit small amounts of UV light so they should be avoided if possible., or used in short durations. Household light bulbs won’t likely damage wine but they can cause your labels to fade over time. As a general rule: the darker the better.
Anywhere between 50 percent and 80 percent is considered safe, although 70 percent is ideal for most wines. Again, the concern comes down to the cork. Dry air can dry out corks, which can cause damage to the wine.
There’s a reason you see wine bottles on their sides most often. This keeps the liquid up against the cork, which helps prevent the cork from drying out. This is less of a concern with wine you plan to drink soon, or for bottles that have different types of closures such as screw caps, glass or synthetic corks. Horizontal stacking also tends to be the most efficient, space-saving way to store wine.