New refrigerators have the temperature control located inside the fridge compartment. So, when the temperature outside the fridge gets lower than the inside, the compressor shuts off. This means that the freezer section is no longer being cooled either and therefore it will warm up until it matches the temperature outside of the fridge. In order to prevent spoilage, do not store food in the freezer compartment of your fridge if you leave your cottage unheated over the winter.
Nowadays, most refrigerators come with "humidity control" crispers, which have sliders that allow you control the amount of humidity in each crisper. While a few are helpfully labelled as to which setting is best for fruits and which is best for vegetables, many of them are simply mart as "Hi" or "Low", with no real insight as to which setting is best for your food.
As fruit starts to ripen, it releases ethylene gas, which causes other fruits to ripen more quickly. Setting the humidity to low humidity creates more airflow allowing the ethylene gas and the excess moisture to be released, extending the life of your fruit.
Vegetables on the other hand, are susceptible to moisture loss. Setting the humidity controls to high reduces the airflow, slowing down the movement of moisture, allowing your vegetables to remain crisp and fresh longer.
The simplest way to remember it is, if something tend to mold or rot, it requires less humidity. If it's more likely to dry out or go limp, it needs more humidity.