Cooked food basically kills harmful bacteria and parasites and is safer. Warm food is good for the stomach. Easier to digest and absorb. Compared with raw and cold food, the taste is generally better, and the sensory is better, so it is welcomed by consumers. This paper analyzes the common material and bag type of cooked food packaging, hoping to help cooked food manufacturers better preserve cooked food.
Not any cooked food can be packaged, and vegetarian dishes tend to oxidize and are not suitable for overnight use. Meat dishes are suitable for packaging and preservation, such as pig feet, pig ears, duck neck, roast chicken and other marinated products.
The material
Common cooked food packaging includes single and double.
Single-layer packaging for aluminum foil bags, vacuum use, pure aluminum foil barrier air performance, oxidation resistance, waterproof, moisture-proof. Strong mechanical properties, high blasting resistance, puncture resistance and tear resistance. Good oil resistance and aroma retention. Good heat sealing performance, flexibility, high barrier performance. Can play a very good flavor, quality, taste, color effect. Aluminum foil bag can be vacuumed, directly preserve cooked food, such as duck neck, chicken feet and other commonly used pure aluminum foil packaging
Double - layer packaging is used for more high-grade cooked food, more grade. The inner layer of the double layer is vacuum packaging, which can keep the flavor and prolong the shelf life. It can be aluminum foil or composite plastic film. The composite plastic is more resistant to cooking, can be vacuumized, the sealing is firm and easy, and the effect of oxygen and moisture resistance is good, which is conducive to the preservation of food quality. In order to control the cost, the inner packaging bags generally do not do printing processing.
The outer layer mainly plays a protective role, you can choose composite plastic film, kraft paper, drawing film, etc., the drawing film product effect is intuitive, three-dimensional sense is strong, high brightness, fine and uniform surface drawing lines. With excellent processing, surface decoration, corrosion resistance, scratch resistance, high temperature resistance and other characteristics.
Yellow paper in vision, touch and ordinary plastic have obvious difference, bring plain sense, friendly to the environment, suitable for plastic limit to the environment, and kraft paper sealing is good, shape stiff, more grade. Partial window opening design can be made to increase the interest of packaging and let consumers see the product.
Composite plastic is the most common material of the outer layer, the price of raw materials is lower, bags have a great price advantage. Composite plastic can carry out good printing on the surface, and the effect of oxygen and moisture resistance is good, which is conducive to the preservation of food quality.
Bag type
The most common type of cooked food bag is a three-side seal and stand - up bag.
Three edge-sealing
Three side seal space utilization rate is high, good air tightness, can ensure the freshness of the product, reduce cooked food water flow, ensure fresh and juicy taste.
Three side sealing bag can increase the zipper, hanging hole, more convenient to hang on the shelf display. Can also be used as internal packaging, the same specifications under the lower price, cost-effective.
Self-supporting bag
Stand - up bags can stand on the shelf, more convenient display. The bottom self-supporting strip is also the printing surface, providing more printing opportunities for the bag. Free-standing bag space utilization rate is higher, the price is also higher than three side seals.
In deli packaging, dried meat and other products that need to be displayed on the shelf are generally chosen to stand bag.
Special-shaped bag
Because cooked food packaging needs to be vacuumed, so single-layer cooked food packaging is rarely made profiled bags. The outer bag of double-layer cooked food packaging can be made into special-shaped bag, which attracts consumers by bag type and increases market competitiveness.
The rest of the details
zipper
Pig's feet, chicken feet and other ready-to-eat food generally do not increase the zip, pork breast and other processed cooked food need a zip. Because fleshy food is easily affected by moisture, it is necessary to seal the bag in time to ensure taste.
Easy to tear
Cooked food packaging materials, most of the mechanical is good, so generally set up easy to tear, easy to tear.
