The temperature of the refrigerator doesn't only make a difference in the nutritional value, but also brings about a change in the appearance and taste of the food.
You must have noticed that food items like milk, juice or meat available in tetra pack, have the definite temperature at which they are to be stored printed on them. If that particular food item is not stored at the said temperature, it is bound to spoil sooner than claimed by the manufacturer.
This is the reason that professional establishments like hotels and restaurants keep a close check on the temperature that they set on their refrigerator. With less time in our hands to cook food or to get fresh food every day, understanding the science behind healthy refrigeration has become all the more important.
In case of any required adjustments, the refrigerator thermometers are provided with temperature control dials using which the temperature can be adjusted. The dial has arbitrary numbers on it, which doesn't refer to the temperature of the appliance, but is meant to help you understand the degree of temperature that you have minimized or maximized. The thing that has to be checked is how is the indicator close to the warmer part of the dial or colder part. So the thermometer and the temperature controller would definitely help you to get the right temperature inside the refrigerator (or the freezer for that matter), and you will be able to ensure the health and well-being of your family members.
Other than the ideal refrigeration temperature, one also has to take a note of internal cooling variations of the refrigerator, and use this knowledge to make optimum use of this appliance. A simple tip, for instance, would be to keep food items which you don't want to become rock solid away from the colder regions like the bottom or the back of the refrigerator. Similarly, a full refrigerator - not an over-stacked one mind you, is anytime better for the health of your food, as compared to a nearly-empty refrigerator.