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How Barrier Properties, Seal Integrity, and Multilayer Structures Help Ensure Food Safety and Preservation

Jahnvi Sharma by Jahnvi Sharma
June 25, 2023
in Business
Reading Time: 3 mins read
0
packaging

Flexible packaging is one of the most popular types of packaging in the food industry, and for good reason. Not only is it cost-effective, but it also plays a critical role in food safety and preservation.

In this article, we will explore three ways that flexible packaging is created to help preserve and protect food.

Table of Contents

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  • Barrier Properties
  • Seal Integrity
  • Multilayer Structures
  • Over to You

Barrier Properties

One of the key advantages of flexible packaging is its ability to provide different types of barrier properties. A barrier is a material designed to prevent or reduce the penetration of water, oils, water vapor, gasses, bacteria, and sunlight. By providing a barrier, the packaging works to keep oxygen out, aroma in, and extends the shelf life of food products.

For example, stand-up pouches are often made with puncture-resistant barrier films, which means that your food is protected from any rough handling that may occur during shipping or storage. Barrier films can also be used to protect food from bad odors, dirt, and other harmful materials. This is particularly important for foods that are sensitive to oxygen and other gasses. This is optimal for packaging coffee, packaging tea and packaging spices, to give some examples.

Seal Integrity

Flexible packaging formats are also created with a strong seal that works with the barrier film to prevent air and other harmful contaminants that spoil food from entering the package. A strong seal promotes portion control and works to protect the quality of food products by preventing leakage, spoilage, and food waste in between use.

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A strong seal is particularly important for products that are sensitive to air and moisture, such as meat and dairy products. In addition, it is essential for products that are sold in small portions, such as in packaging snacks and packaging candies, as a weak seal can result in the package opening and the food inside being exposed to the environment.

Multilayer Structures

Finally, some flexible packaging formats, such as multilayer stand-up pouches, are created with multiple layers of thin plastic or other materials, such as foil or paper, that each work to serve a purpose in protecting and preserving food. The exterior layer provides strength, heat resistance, and packaging efficiency.

The middle layer provides protection from light, gasses, and odors. The food contact layer promotes flexibility and strength, and protects food from water, air, product degradation, and keeps it shelf-stable, not only in the store, but in your home.

Multilayer structures are particularly important for products that require a high level of protection, such as frozen foods and snacks. In addition, they are useful for products that require special handling, such as packaging microwaveable meals and packaging pet food.

Over to You

From manufacturing, to when a package hits the shelf, and when you take it home, flexible packaging aids in food safety and food preservation. Its strong and protective materials protect your food during shipping and help to extend shelf life, so you have fresh food to enjoy even longer!

In conclusion, flexible packaging plays a critical role in guaranteeing the safety and quality of food products. Its ability to provide different types of barrier properties, a strong seal, and multilayer structures all work together to protect food from harmful contaminants and extend its shelf life.

With the increasing demand for convenience and sustainability in the food industry, flexible packaging is expected to continue to be a popular choice for both manufacturers and consumers alike.

Also read: Why are Custom Rigid Boxes Vital to Your Packaging Strategy?

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Jahnvi Sharma

Jahnvi Sharma

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