Modern food packaging, first of all, should look aesthetically pleasing and be multifunctional. However, in addition, it requires convenience in transporting products and an increase in the shelf life - these are the qualities that vacuum packaging possesses, which allows you to keep a large amount of perishable goods fresh.
All about vacuum packaging
Today, vacuum packaging is one of the most popular solutions for meeting all requirements for product design. It does not need significant financial costs and a large production area, which makes it profitable even for small businesses. Depending on the volume of production of vacuum packaging, semi-automatic equipment or high-performance lines are usually used, on which the products are packed.
Machines that pack goods in a plastic bag seal the vacuum package with a special seam.
Vacuum packaging is made of a polymer barrier film with a multilayer structure. An important requirement for it is the presence of optical properties, with the help of which the buyer can evaluate the appearance of the product and its quality. The other side of the vacuum packaging is often made opaque to make the product look more profitable. For fish products, oblong plastic bags are usually chosen, while square bags are used for packaging meat products.
Vacuum packed storage
The main advantage of vacuum packaging is its ability to significantly extend the shelf life of the product due to preliminary displacement of air from the packaging chamber. For this, special gas mixtures are used, prepared separately for each type of product and destroying anaerobic bacteria that can multiply and spoil the product even in an airless environment.
In a vacuum, food lasts 3-5 times longer than traditional refrigeration or freezer storage methods.
Vacuum packaging also keeps food tasty and fresh after defrosting, which significantly saves money on new food purchases. It perfectly stores free-flowing cereals, sugar, salt and flour, since vacuum packaging prevents moisture from the air from being absorbed and protects products from fossilization and bugs. In addition, vacuum bags are ideal for quickly marinating meat and fish, opening the pores in them and saturating the dish with marinade as much as possible. As a result, kebabs can be cooked 10 minutes after marinating in a vacuum package. It is also widely used for storing foods with a high fat content, which retain their original taste under vacuum.
