The New Hampshire Fruit Growers Association has a great blog post on keeping your apples fresh – I had no idea they liked it so cold!
“Of all the factors that affect how well apples keep that fresh-picked flavor and crispness, temperature is the most important. How cold? For most varieties, storage at 32oF or nearly so is ideal.
Why so cold? Apples are alive. They consume oxygen and stored food to produce the energy needed for life. At lower temperatures, this process is slowed way down. As a result they live much longer.
Of course, there is more to it than temperature. High humidity is important too – around 90% relative humidity is ideal. If you are storing apples in a frost-free home refrigerator, placing them in a loosely folded, food-grade plastic bag will help.”