Maintaining a normal freezing temperature is more than good for your appliance or energy efficiency. It’s about the health and longevity of your diet. It’s also about avoiding waste. We live in a culture that spends enough food to feed every hungry person on the planet, and believe it or not, the temperature in the freezer has a direct influence on that.
But there is more at stake than determining a number in Fahrenheit or Celsius. First you have to understand what you are trying to save and what you want to avoid. Only then we can really understand what a normal temperature is, but also why it is important.
For thousands of years, people have found creative ways to freeze food. Leaders such as Alexander the Great regarded refrigeration as an extremely important subject. Washington was smart enough to use it by collecting enough ice from the Potomac to last six months after the spring thaw. Others, like Napoleon, were not willing to help invent something beautiful. The exile ice machine is one of the earliest examples of the science of artificial ice production.
Freezing technology is important. Indeed, the survival of any civilization depends in part on its ability to store food. But it has to be at the right temperature.
Short history of cooling
The cooling and freezing of food has existed for thousands of years. Ancient Mesopotamia dug potholes, covered them with straw and sand and filled them with mountain snow. It kept the meat from spoiling for two or three weeks. In the 1600s, ice houses began to appear all over Europe.
The Eishaus is a building with a thatched roof, partly underground. Isolated with snow-filled sawdust, European coolers used ice from mountain lakes to keep food from spoiling and to provide ice cubes for drinks and sweets.
The cooler prevailed before the invention of the refrigerator. It turns out that the fridge was a box or a rack containing a large piece of ice that kept the insulated compartment cold. Foodstuffs were frozen in this way until the first mechanical freezer was developed for production in the 1920s. And for almost 100 years, the freezer as we know it today has contributed to the safety of our products.
What is the normal freezing temperature?
Your freezer, whether it is a combination refrigerator/freezer, chest or sink, must maintain a temperature of 0 degrees Fahrenheit or less (-18 degrees Celsius). It is true that food is frozen at 32 degrees Fahrenheit, but frozen food is not good enough for safety and long storage. 0 degrees is not only recommended, but is also a requirement in the hospitality industry. Most commercial kitchens are so worried about their inventory of frozen foods that they have an alarm that goes off if their freezers go one degree above zero.
Many people don’t use freezers as often as they can because they don’t believe that frozen foods can taste fresh. These people escape the high prices for meat and other products sold in large quantities. A little research and reading can save money, reduce purchases and generally stop throwing food away. But you have to keep the food frozen, and well-frozen.
Why maintaining a normal freezing temperature is important for your health
It’s a myth that freezing kills all bacteria and other unpleasant things. That’s not true. Some bacteria, such as those growing on the surface of a piece of meat, die in the freezer. Others, on the other hand, stay alive.
However, freezing prevents the bacteria present from multiplying. The piece of meat that you left in the fridge before it was frozen on the expected date has already begun to develop bacteria. If it freezes, growth stops. At a normal freezing temperature of 0 degrees the bacteria are at rest.
If you thaw, the bacteria come back to life. The difference is that the protein hasn’t been in the fridge for days, weeks or months. You put it in the cryogenic chamber until you find the perfect pesto. Now that it’s out, you have to treat it like expired meat while it’s freezing.
Freezing stops the growth of bacteria that cause salmonella and botulism, which can make a person very, very sick. Freezing also stops the bacteria that cause food spoilage – discoloration, leakage and bad odours. The bacteria that cause food spoilage will hurt you much less. But nobody likes to eat spoiled food.
Why it is important to maintain a normal freezing temperature for your food
The ability to freeze food has changed everything. Science has discovered that food stored at 0 degrees is generally in a state of suspension. Different products react differently to freezing, but most products can usually be hung over time.
But that doesn’t mean you can just throw your problems in the freezer and they’ll disappear. Freshly purchased meat is wrapped in plastic and rests on a foam tray in front of the meat. If you take this package and put it directly in the freezer, you will solve the storage problems because of the quality of your products.
Take a moment to see how long your product can be stored in the freezer and pack it well to prevent it from burning and losing flavour.
Freezer combustion plants
Freezing occurs when food is directly exposed to cold air. It turns grey and often accumulates. Contrary to popular belief, it’s not because your freezer is too cold. Burns can also occur at normal freezing temperatures. But it has to be kept well to freeze it.
Use a white freezer sheet or a storage bag and make sure that the packaging contains as little air as possible. Always identify the object and note the date you froze it. The U.S. Food and Drug Administration (FDA) has developed specific guidelines for freezing different foods before they lose their flavour and texture.
Here are a few examples:
|Meat, cooked steaks or chops…||four to twelve months|
|bacon and sausage||for a month or two|
|Meat, semi-finished products||three to four months|
|Bird, uncooked.||12 months|
|Meat, cooked.||two to three months|
|Soups and stews||two to three months|
Freezing your food longer than recommended and burning it in the freezer does not reduce its nutritional value. You may need help with the palatability, but you don’t have to throw food away because it’s ugly or under the frost. Let him thaw and give him a chance.
How freezers work
The cooling inside is enchanting. In order to generate artificial cold, a lot of heat must first be generated. The freezer heats and pumps the coolants and then converts them into steam. This steam cools the main freezer compartment. In the freezer, the vapour is then converted back into liquid and the process begins again.
Looks like a water circuit. Imagine a small pond on the mountain, which flows into a series of streams, rivers and mountain streams. They all lead to the sea, where nature moves hot water to the north and cold water to the south. Clouds absorb evaporated water, bring it back to the ground and return to the pond as drops, like rain. Then the cycle starts again.
Your freezer is one of the most important parts of your home. It ensures that your food is kept safe and that your frozen foods are strong and tasty. It can even be used to specifically kill a number of bacteria that cause odors. Throw a pair of smelly sneakers in a storage bag and put them in the freezer at normal temperature, and by the next morning most – if not all – of the smell will be gone.
What to do in case of power failure or interruption?
- Food is safe up to 32 degrees Fahrenheit or less.
- When the temperature drops 40 degrees Fahrenheit, your food is no longer safe.
- Call a qualified professional
- If the temperature is higher than 32 degrees Fahrenheit, defrost and boil.
Modern freezers can hold the cold for a very long time, even if they lose energy. After a malfunction, a quality freezer can keep food frozen for weeks, as long as you don’t open the door. The most important thing to remember is safety. Freezers with thermometers are inexpensive and ensure that your food is well preserved.
If you take a break, your food is safe to eat at 32 degrees Fahrenheit or less. As soon as the freezing temperature exceeds this level, it is time to start defrosting and cooking. Store food in the refrigerator at about 38 degrees Fahrenheit, so your freezer is only a refrigerator for a short time, defrosting a variety of foods.
As soon as the temperature rises above 40 degrees Fahrenheit, your food is no longer safe. You must intend to use it, give it to your family and friends, or give it to a local house. Throwing away food should never be an option.
If your freezer breaks down, call a qualified technician. Refrigerants like Freon can be toxic. They’re also very dangerous. Cut one of these copper wires and you’ll be in a burner or in a state of freezing before your now transparent fingers.
Conclusion on freezing
Freezing food has changed the world. We spend less and store safely. Using the power of the cold is one of the greatest achievements of mankind. If one conclusion can be drawn, it is that everyone needs to learn and understand the normal freezing temperature. Your diet – and your health – depends on it.
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