Top-line packagingTel: +86 188 2689 9458

Top-line packagingEmail: info@toplinepackaging.com

Top-line packaging
Top-line packaging
Top-line packaging
Top-line packaging Home  >  NEWS  >  Industry News

Be careful when purchasing vacuum packaged food

source:Industry News release time:2024-03-26 Hits:    

First, observe the bulging bag

Whether the bag is bulging or not is the most intuitive and convenient way for consumers to judge whether food vacuum packaging has deteriorated.

According to common sense in physics, under normal circumstances, the air pressure inside the packaged food bag should be consistent with the outside world or less than the outside world after vacuuming. If the bag bulges, it means that the air pressure inside the bag is higher than the outside world, which means that new air pressure has been produced in the sealed packaging bag. Gases, these gases are the metabolites produced by the massive reproduction of microorganisms, because the metabolites of a small amount of microorganisms are not enough to expand the bag. Most of the bacteria or molds that may cause food spoilage (lactobacillus, yeast, Aerobacillus aerogenes, Bacillus polymyxa, Aspergillus, etc., hundreds of species) will produce a large amount of gas during the process of decomposing protein and sugar in food. Such as carbon dioxide, hydrogen sulfide, ammonia, alkanes, etc. It is these gases that "blow" the packaging bag into a balloon. During the sterilization process of food before packaging, microorganisms and buds have not been completely killed. After packaging is completed, microorganisms multiply in large numbers and become corrupted, which naturally causes the problem of bulging packaging bags.

The second is to smell

When purchasing vacuum-packaged food, do not use the aroma of the food as a criterion. If the food smell overflows outside the package, it means that the vacuum package itself is no longer vacuum and there is air leakage. This means that bacteria can also "flow" freely.

The third is to check the identification

When you get a food package, you must first check whether its production license, SC code, production company, and ingredient list are complete. These certificates are like "ID cards" for food. Behind the certificates are the "past and present lives" of the food, where it comes from and where it has been.

The "Food Safety Law" clearly stipulates that the food production license number should be marked on food packaging. The number is composed of the letters "SC" plus 14 Arabic numerals. The "SC" code represents the company's unique license code, which can realize the traceability of food.

Fourth, strictly pay attention to the shelf life of food

Food approaching its shelf life does not mean it is harmful, but the color and nutrition of the food will decrease. After opening the vacuum packaged food, it should be eaten as soon as possible and should not be stored in the refrigerator. When purchasing "buy one, get one free" food, pay attention to the production date and shelf life of the bundled products.

According to the Economic Daily-China Economic Network Life Channel, vacuum packaging, also called decompression packaging, is to extract all the air in the packaging container and seal it, maintaining the bag in a highly decompressed state. The sparse air is equivalent to a hypoxic effect, making microorganisms unable to Living conditions to achieve the purpose of fresh fruit and no disease or rot.

In addition to the function of oxygen removal and quality preservation, the main function of vacuum inflatable packaging is to resist pressure, block air, and preserve freshness. It can more effectively maintain the original color, aroma, taste, shape, and texture of food for a long time. Nutritional value.


Read recommendations:

Custom Laminated Printing Juice Bag Liquid Packaging Stand Up Plastic Water Spout Pouch

recyclable spout pouches manufacturer

pet food bag sealer Vendor

Types of coffee bag

The difference between boiling and cooking plastic bags is so big.Biodegradable Bubble mailing bag w

Popular recommendation

Custom Size Printed Coffee Milk Juice Wine Bib Bag-In-Box With Valve Gift Cardboard Box

Hot Sale BPA Free Plastic Drink Juice Fruit Liquid Packaging Stand Up Bag Spout Pouch

Pouch with handle

Pouch with handle wholesale

mini pet food bag Vendor

eco friendly spout pouches manufacture

bag in box packaging Manufacturing

reusable Snack food bag Production

flexible packaging bags company

refillable spout pouches manufacture

Food packaging bag.plastic pouches for food packaging

The production process and process of vacuum packaging bags

What are the advantages of octagonal sealed packaging bags

The development trend of domestic food packaging.vanishing coff packaging bag Processing

Bag material shelf life analysis of food packaging bags

Composite packaging bag

Pure Source: High quality liquid sealed packaging bag.juice bag in box wholesaler

The origin of aluminum foil bags!disposable aluminum foil bag

Packaging bag printing type.recyclable spout pouches supplier

What are the composition of plastic bags?coffee packaging plastic bag wholesale

Advantages and characteristics of anti -static bags.food packaging supply companies

The difference between boiling and cooking plastic bags is so big.Biodegradable Bubble mailing bag w

How to design plastic packaging bags?spouted pouches supplier

flexible packaging film thickness wholesale.Sharing of Common Bag Types in Food Packaging Bags

Introduction to materials used in various express delivery bags and bags

Introduction to the selection of moisture-proof packaging materials for water packaging bags.Spout p

Convenient circulation of packaged food.petco free dog food bag Manufacturing

Tell you how to perform sterilization and sealing in high-temperature cooking vacuum bags.food vacuu

Since you choose the nylon vacuum packaging bag, you should know its advantages.vacuum sealer bags f

Why is the cooking bag called "soft can"? What are its advantages and characteristics

Share:

Email

Wechat Whatsapp

Leave Your Message