Food preservation has become extremely important, not only for the food industry but also in every family. One of the most effective and popular preservation methods is using PE vacuum bags (Polyethylene Vacuum Bags). This article will explore why PE vacuum bags have become the top choice in food preservation, from their outstanding properties to practical applications in everyday life.
History and Development of PE Vacuum Bags
History and Development
Vacuum PE (Polyethylene) bags, a breakthrough invention in the food preservation industry, are not a product of one day. Their history dates back to the 1930s, when polyethylene was discovered and subsequently developed into a versatile and versatile material. Since then, PE has become one of the most popular plastics in the world, used in a variety of applications from packaging to manufacturing.
Evolution in Food Preservation
In the 1980s, the use of vacuum-sealed PE bags began to become popular as a food preservation solution. Thanks to their excellent oxidation and moisture resistance, they have quickly become a top choice in the food industry. This evolution is not limited to storability but also includes improvements in durability and versatility, helping them adapt to diverse market needs.
Outstanding Features of PE Vacuum Bags
Physical Characteristics of PE
PE, or polyethylene, is a type of plastic prized for its durability, moisture resistance, and flexibility. This is why vacuum bags made from PE become the ideal choice for food preservation. This material not only resists the penetration of air and moisture, but also ensures the integrity of the food inside, preventing the growth of bacteria and mold.
Benefits of Vacuum Suction
The vacuum technique used in PE bags enhances preservation by removing air – the ideal environment for bacteria and mold to grow. This process not only helps maintain food freshness for a longer period of time but also retains flavor, color and nutrients. In addition, air removal reduces storage space, an important advantage in households and food production facilities.
Why are PE Vacuum Bags An Ideal Choice In Food Preservation ?
Preserve Food Longer Longer
- Anti-bacterial and mold resistance: Vacuum PE bags prevent the growth of bacteria and mold by eliminating air, the environment necessary for their growth.
- Minimizes oxidation: The removed air helps limit oxidation, the main cause of discoloration, loss of flavor and spoilage of food.
- Flexibility in preservation: From meat and fish to vegetables and processed foods, vacuum PE bags can preserve a variety of foods.
Preserves Flavor and Nutrients
- Preserving flavor: Vacuum sealing technique preserves the natural flavor of food, preventing flavor changes due to the effects of bacteria or changes in the storage environment.
- Maintain nutrients: Air and temperature are two factors that can reduce the nutritional value of food. Vacuum PE bags help preserve food in optimal conditions, thereby preserving vitamins, minerals and other nutritional ingredients.
- Prevent uneven freezing when frozen: For frozen foods, vacuum bags help avoid uneven freezing, ensuring that food after defrosting still retains its freshness and structure.
Minimize Food Waste
- Optimize storage space: Removing air helps reduce storage package size, thereby optimizing storage space in the refrigerator or freezer.
- Flexible storage capacity: Vacuum PE bags can be customized in size to suit specific storage needs, from small portions to large quantities of food that need to be preserved.
- Contribute to reducing food waste: By extending the shelf life of food and minimizing the need for frequent shopping, PE vacuum bags contribute significantly to reducing food waste.
Comparison with Other Preservation Methods
1. Compare with Regular Storage Bags
Material and Durability: Vacuum PE bags are made from polyethylene, a type of plastic with high durability and good moisture resistance. This makes a big difference compared to conventional storage bags, which are often made from thinner and less durable plastics.
Storage Ability: Vacuum bags remove air, helping to prevent the growth of bacteria and mold. While conventional storage bags are only capable of keeping food from direct contact with the outside environment without removing the air inside the bag.
2. Comparison with Cold Storage
Storage Time: While refrigeration can only prolong the freshness of food for a certain period of time, vacuum PE bags can preserve food freshness for a much longer period.
Food Quality: Refrigeration can change the texture and flavor of some foods. On the contrary, vacuum sealing preserves the flavor, color and nutrients of food better.
3. Compare with Canned
Convenience: Canning food is a much more complicated process than using vacuum-sealed PE bags, requiring specialized equipment and sophisticated food handling procedures.
Storage Capacity and Space Savings: Vacuum bags save significant storage space compared to using packaging boxes, an important advantage for both homes and food production facilities.
4. Comparison with Dry Storage Method
Maintaining Moisture: Dry storage often causes the food to lose moisture, which may not be suitable for some foods that need to maintain a certain moisture level. Vacuum PE bags retain the necessary moisture, keeping food from drying out or dehydrating.
Food Diversity: The ability to preserve a variety of foods is a strong point of PE vacuum bags, from fresh food to processed food.
