This is for all store managers and restaurant owners. Do not let the sun shine into freezer chests including those with sliding glass panels. This may mean putting the freezer away from windows and glass doors in the room. This may mean keeping blinds or drapes drawn more than you might want. This causes ice cream to develop a rubbery crust as just the layer nearest the cardboard carton thaws and refreezes.
Meat develops a skinlike layer as just the surface thaws and refreezes.
Even freezer chests with no glass panels should not be in the sun. The sun will heat up the metal surfaces and frame, the heat will eventually migrate inward, and the refrigeration unit has to do more work and consume more electricity. The warmed up objects then heat up the air inside the freezer producing what we refer to as the greenhouse effect. This is especially important if the apples were purchased from a discount store or are really ripe. By spreading out the apples, if one is injured, the ethylene gas dissipates rather than hover around the other apples.