This article about storing apples for the winter says:
You do not want the apples' temperature to fall below 30°F (-1.1°C), however, because that will make them freeze and turn to mush when they're thawed. Their cell walls will all collapse.
Therefore, apples are best stored somewhere around 30-35°F (-1.1 to 1.6°C), in a humid environment.
I don't understand why you should keep the apples below the freezing point of water. Why would damage only occur below 30°F (-1.1°C)?
Is the article correct?