This is very special type packaging. Barrier packaging can be done with different types layers and various types of resins, which provide an extended shelf life. Material used in barrier packaging is nylon, EVOH, PET, PVDC, SIOX coated Pet film, ALOX coated pet film, metalized pet films etc.
Normally customer does not have any idea about the packaging of a product that they might buy mostly let's say once in a week, remain fresh for longer time.
When a customer or let's say me visiting to a shop and I want to buy meat I will be looking at the few important factor that is the food is properly packed and the type of packaging used. I will give maximum point to the manufacturer of High Barrier Packaging. They are the one who needs check the quality of raw material used in this.
Today's retail success is just on this type of packaging where they can fill all kind of fresh food products even the liquid food items.
Well friends let me be point black with you that, If you find any fresh food packaging at the store please report to the shop owner and explain him the importance of these type of packaging.
There are different kinds of packaging you will find for such food products like Barrier Bags, Oxygen Barrier Packaging, Extreme Barrier Packaging. They are available in many sizes, color, and you can even order small quantity. Just Google it and use the keyword as 'High Barrier Packaging' this will make your life easy for the food packaging. You will find many manufacturers. Ask them samples and talk to them and please ask them about the quality of raw material they used to manufacture this. Few manufactures will perform various types of test for the pouches and then they will supply you so that their reputation remains good in the industries and they do the good and continues business with the clients.
I know that I am not much knowledgeable about the packaging industries but these are the basics which each one of us must know and must keep our eye open while buying any food from store, As the expiry date is important packing is also important.. For an example you buy a expensive diamond ring and the shopkeeper gives you the ring in plastic bag will you buy Answer is 'NO' so the packing is one of the most important factor not only for look and feel but even to protect the product from various things and even to handle it.
Further barrier packaging is must if we need good shelf life of freshly processed food to increase the shelf life of the product. If the meat, red meat packaging, or fish is packed in EVOH, NYLON, SIOX, ALOX pet film than the barrier is increased so meat stays red and fresh for very long time and also the test is not changed. All the sea food packaging requires barrier bags and vacuum bags to get good shelf life of the product.
Barrier packaging bags are also used for Liquid Packaging like fresh fruit juice packaging. There is also mayonnaise, salad dressing, motor oil, liquid car wash, liquid hand wash, liquid detergent, liquid soap, whiskey packaging, soups is also packaged in barrier bags now.