Tel: +86 188 2689 9458
source:Industry News release time:2022-11-14 Hits:
Vacuum packaging: put the food into the packaging bag, extract the air in the packaging bag, and complete the sealing process after reaching the predetermined vacuum degree. The vacuum inflatable packaging will put the food into the packaging bag. After the air in the packaging bag reaches the predetermined vacuum degree, it will be filled with nitrogen or other mixed gases, and then the sealing process will be completed.
The principle of vacuum packaging: vacuum packaging refers to extracting all the air in the package and cooperating with packaging materials with extremely low oxygen permeability, so that external oxygen can not penetrate into the package, reducing the rate of oxidation and rancidity of fresh meat to ensure the freshness of fresh meat. The vacuum packed fresh meat can be stored for 14-20 days at 0 ± 1 ℃.
The shelf life of the vacuum packaging itself is 5-7 days longer than that of the pallet packaging, but after the vacuum packaging, the general meat will be dark red due to the blocking of oxygen, which will damage the appearance. However, if the package is removed, the chilled meat will return to bright red color when encountering oxygen. Therefore, vacuum packaging is generally used in hotels and some hypermarkets that require long storage time and high quality.
The materials used for vacuum packaging include polyester and polyamide in addition to polyvinylidene chloride (PVDC) with good oxygen permeability and shrinkage; Or nylon, polyester film and polyethylene multi-layer materials. Polyvinylidene chloride (PVDC) is the best membrane material for preventing the permeability of oxygen and water vapor, but the biggest disadvantage is that it cannot be heat sealed. Polyester has strong tensile strength and softness; Nylon has good oxygen prevention permeability, heat resistance, cold resistance and strong mechanical property, but it has high water vapor permeability and is expensive, so it is often used as a vacuum packaging material for fresh meat in the form of multi-layer composite.
The function of vacuum packaging is to inhibit the growth of microorganisms and avoid external pollution; Slow down the oxidation rate of fat in meat, and also inhibit the enzyme activity; Reduce water loss and maintain product weight; The package is beautiful and intuitive, which enhances the desire to buy and is easy to carry.
Read recommendations:
Custom Special Shaped Super Pouch Aluminum Foil 1.5L 3L 5L Stand Up Drink Juice Liquid Pouch With Va
spout pouch packaging bags company
What are the packaging forms for beverages and liquid food?
Reduce carbon footprint in vacuum bag packaging.printed snack food bags distributors
Popular recommendation
Smell Proof Stand Up Flat Bottom Pouch Coffee Bag /Coffee Beans Bag With Air Release Valve And Reusa
China Factory Baby Complementary Food Spout Pouch Baby Food Fruit Puree Bag With Spout Packaging Bag
Custom printed food grade ziplock snack custom plastic pouch packaging food packing bag
spout pouch manufacturers
grinds coffee pouch price
packaging spout pouch distributors
spout pouches manufacturer
pouch with handle supplier
kraft paper spout pouch manufacturer
Spout pouch company
The use of vacuum bag and the method of controlling its thickness
Food vacuum packaging bag: a very convenient packaging method
How to correctly choose plastic bags for food?
What are the liquid packaging methods?
The function of Bag-in-Box
The production process and process of vacuum packaging bags
How long can cooked food vacuum packaging bags last?
Packaging bag development history
What is biodegradable packaging material and how to identify it?
Thermal insulation: the guardian of temperature
Packaging waste.biodegradable spout pouches
How to choose the type of food packaging bag?
Is there a shelf life of biodegradable plastic bags?Biodegradable Bubble mailing bag distributors
How to classify and differentiate composite food bags.biodegradable spout pouches manufacturer
The impact of food packaging preservation on consumer lifestyles.bag for food packaging
Give a detailed introduction to vacuum food packaging bags
Why to put desiccant in food bag
Some packaging methods for liquid packaging bags
What are the advantages of sterile packaging bags.retort pouch specification
Vacuum packaging bag.vacuum sealer bags for food