IDT Energy Helps You Keep It Cool!

IDT Energy, Refrigeration ,

Have you ever given much thought to how refrigerators work? Here is a brief discussion of how the most important appliance in your home has revolutionized the way we live.ice delivery truck

Even though many things taste better cold, like drinks and other foods, the real purpose, and revolutionary effect of refrigeration is to keep foods from spoiling, especially sensitive foods like meat and dairy products. For example, milk would spoil in a matter of hours if left at room temperature, but at the normal temperature of a home fridge, milk can last a week or more. If milk is kept frozen it will last much longer. This is because there are bacteria in food that grow quickly at ordinary temperatures, and if left to themselves they will reproduce until the food is no longer edible. These same bacteria grow much, much less rapidly at extremely cold temperatures, like 40 degrees Fahrenheit (about 5 degrees Centigrade.) At zero degrees Centigrade (32 degrees F) the growth of bacteria is entirely checked.

Without refrigeration we would need other ways to preserve foods, like old fashioned ice boxes, or salting food which also inhibits bacterial growth.


Comments are closed.