Most wine refrigerators can be set between around 40 and just under 70 degrees to cover the range of optimal serving temperatures for both whites and reds. A wine fridge can be set to maintain a consistent temperature of 55 °F, an environment that can properly store all types of wine long term.
However, you can also typically set it to the ideal serving temperature for your wine. For example, certain red wines, such as a lighter pinot noir or a heavy syrah, can be stored between 60 to 68 °F. Whereas, some white wines, like a classic sauvignon blanc, should be served at a cooler temperature between 48 to 52 °F to unleash the aromas and vibrant flavors.
Regardless of your wine preferences, with a wine refrigerator you are in control of the temperatures and can set the appropriate range for your wine collection.