Vacuum Package
Wenxi Packaging: Your Trustworthy Vacuum Package Manufacturer!
Zibo Wenxi Packaging Co., Ltd., established in 1998, is a professional manufacturer of color printing and plastic packaging for food, pet food and other industries. Our main products are color printing packaging, functional packaging, in-mold labels, etc., including food packaging bags and color printing composite films. These packages are widely used in food, agrochemicals, cosmetics and health care industries. Currently, we are equipped with an independent technical department that can develop new environment-friendly materials according to your needs.
Rich Product Range
Our packaging models are complete, including high-temperature cooking packaging, low-temperature freezing packaging, functional color printing packaging, multi-sided sealing bags, zipper stand-up bags, aluminum foil cooking bags, EPS packaging boxes, etc.
Well Equipped
The factory has a fully enclosed clean workshop, as well as multi-layer co-extruded barrier film under-blowing water cooling production equipment, as well as automatic stretch packaging machines, packaging bag production facilities and color printing composite workshops and other equipment.
Quality Assurance
Our production environment meets the high standards of GMP 100,000 and has passed ISO9001 series certification, production license and printing license. We also design our own production facilities, including patented co-extruded film cutting units.
Customized Services
Our products are made of different bag structures and film materials, produced in optional printing colors, and provide customized designs such as logos, patterns, number of layers, etc.
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Vacuum packing is a method of packaging that removes air from the package prior to sealing. This method involves placing items in a plastic film package, removing air from inside and sealing the package. Shrink film is sometimes used to have a tight fit to the contents. The intent of vacuum packing is usually to remove oxygen from the container to extend the shelf life of foods and, with flexible package forms, to reduce the volume of the contents and package. It is also commonly used to store dry foods over a long period of time, such as cereals, nuts, cured meats, cheese, smoked fish, coffee, and potato chips (crisps). On a more short-term basis, vacuum packing can also be used to store fresh foods, such as vegetables, meats, and liquids, because it inhibits bacterial growth.
Features of Vacuum Package
Less Waste
Our vacuum packaging bags work with all types of vacuum sealing machines and are available in different cutting sizes including 8" x 20" and 11" x 20". The two different width sizes and roll packaging design allow you to customize the length according to your food packaging needs, preventing wasted material.
Puncture Proof
They are designed with a multi-layer construction that blocks moisture and oxygen and protects food from dehydration and freezer burn. At the same time, their single-sided embossed dotted surface increases friction with food and prevents punctures, keeping food fresher longer.
Safe Material
These vacuum packaging bags are made without BPA and harmful substances, making them ideal for food storage. They remain durable in microwave ovens (-20°C~100°C), cabinets, refrigerators or freezer storage environments, and can also be used for boiling, sous vide cooking and other operations.
Wide Uses
Our vacuum bags are suitable for packaging a variety of food ingredients, including vegetables, seafood, ribs, beans, pills, etc., ensuring that they can effectively extend the shelf life and store nutrients and freshness for food.
The underpinning goal of vacuum packing is to create an anaerobic environment. Removing oxygen from direct contact with the food item has two application:
●It prevents oxygen from reacting with the food item, which deteriorates its quality and appearance. A good example of this effect is the oxidative rancidity of fats which require oxygen to take place. Additionally, color changes in food are almost always caused by oxygen.
●It prevents the growth of spoilage bacteria. Vacuum packing food items prevents bacteria from growing, which, in turn, reduces spoilage of perishable food (foods that require cold storage and are not stable at room temperature for long). Spoilage bacteria are the various bacteria that spoil food in the ways humans can perceive through odor, color, and appearance.
Such bacteria need oxygen to survive and spoil food in ways you can perceive with your senses. Creating an anaerobic environment deprives the food of the necessary oxygen they need to multiply. This slows down the deterioration of food quality.
While preventing the growth of spoilage bacteria goes a long way to increase the longevity of food items, there is still a risk of other types of bacteria multiplying and making your food unsafe for consumption. The resulting anaerobic environment is the perfect breeding ground for anaerobic bacteria such as C. botulinum which causes botulinum poisoning.
Benefits of Vacuum Package
If you have been wondering whether a vacuum packaging would be of use in your life, here are some benefits of owning a food vacuum sealer:
Save Your Time
Seal family-sized portions of meals or individual portions of snacks or vegetables and freeze. When it’s time to eat, fix the portions you need and you’re done. This is very useful and dinner is served very quickly.
Save Your Money
Buying meats in bulk, dividing into meal-sized portions and sealing allows you to have fresh meat on hand for up to 6 months. This leads to an incredible cost savings over buying your meat from the counter before every meal.
Protects Food
Vacuum sealing protects food from dehydration and freezer burn. Freezer burn occurs when water gets into your food. The vacuum bag keeps your food from contact with the air, so moisture cannot evaporate, making it an excellent barrier from the elements.
Extends Shelf Life
The shelf life of your food is greatly extended when you vacuum seal it. Vacuum sealing food preserves it 3 to 5 times longer than food stored in plastic containers or bags. The exact amount of time food will last in vacuum sealing varies depending on whether you are storing in the refrigerator, freezer or pantry.
Efficient Food Organization
Vacuum sealing makes for efficient, organized packaging. Vacuum sealed food takes up less room in your refrigerator or freezer and allows you to easily see the foods you are storing.
No Freezer Burn
Vacuum sealing provides food an air-tight environment, preventing the crystals that cause freezer burn from forming on your food. Vacuum sealing keeps the moisture in your food for an extended period of time, allowing you to enjoy food that tastes fresh months after you have stored it.
Food Tastes Better
Vacuum sealing holds in the moisture, juices, and flavor of the food. You’ll notice the difference in taste.
Keeps Food Fresh
Vacuum sealing not only keeps food from spoiling, it keeps fats in the food from going rancid, keeps foods from changing color as they often do in the freezer, and prevents them from getting a slimy film or bad odor.
Store Liquids Easier
Place the liquid in the freezer for a couple hours to harden it a little. Then place the partially frozen liquid into a sealing bag, leaving room at the top for sealing. You can also seal liquids inside a jar and vacuum seal the jar. Vacuum seal any leftover food from your meal right away. This eliminates you having to throw out the food and gives you another easy meal for the future. Freeze the leftover portions and they will last for months – keeping you from having to eat the same meal three nights in a row. Pull it out a few weeks later for a meal that tastes fresh.
Factors to Consider When Choose Vacuum Package
Did you know that vacuum bags are the most important factor in the quality of stored food? If you noticed that your vacuum bag melted during vacuuming with vacuum sealer or the machine didn’t remove enough air, then the problem lies in vacuum bags you are using and not in the machine as most users think. Read the following post about the most important cues when you are vacuum-packing food for freezing and long-term storage.
Materials
Bag structure is very important because the insides of the bags are in direct contact with food. Bag producers need to guarantee all the used materials are food grade and list the temperatures, at which vacuum bags are safe to use (are the bags appropriate for freezing and Sous Vide cooking?). Our food vacuum bags are made of polyamide and polyethylene. Polyamide (PA) ensures oxygen impermeability. It is important to note that our vacuum bags have the thickest layer (20 µm) of PA on the market. Polyethylene (PE) ensures quality sealing. Latest researches also show that PE is one of the safest materials to be used with food. Your food will stay the same as it was on the day of vacuum packing after six months or even longer. Bags can also be used for freezing and Sous Vide cooking (at 70°C up to 12 hours, at 80°C maximum of 6 hours, at 100°C maximum of 15 minutes).
The Thickness
It is very important that food vacuum bags are thick enough because they also protect the food from outside mechanical damage. With the right bags, you don’t have to worry about food packages rubbing against each other in the freezer and tearing. Be careful when vacuum-packing meat with sharp bones. We recommend you coat the sharp edges with paper towels before vacuuming. Our food vacuum bags have 100 µm thick smooth layer and 120 µm thick ribbed layer.
Ribbed Profile
The last two factors that distinguish top-quality vacuum bags from lower-quality bags are the shape and the height of the ribbed profile. Both are very important for efficient vacuuming – removing the air from the bag in many continuous cycles of vacuum packing goods. Let us elaborate: if you would try to vacuum pump the air out of the bag with two smooth layers, the layers would stick together even before all the air was removed and the food wouldn’t be stored properly. The special shape of the channels in the ribbed profile ensures effective air flow during vacuum packing. The height of the ribbed profile ensures quality vacuum storage in many continuous cycles of vacuum packing.
Quality of Bags
There are three ways to get information about the thickness of the bag and used materials – check the declaration, judge by price, or measure. The declaration should state the information about the thickness, but we still advise you to verify its truthfulness with the vernier caliper. If the declaration doesn’t state the information about the thickness and the bags feel thinner and are much cheaper than most vacuum bags on the market, they are probably not adequate for long-term food storage.
How to Use Vacuum Package?
To use vacuum bags safely, choose approved "food-quality" bags and give preference to recognized brands to avoid unpleasant surprises. It's also important to observe kitchen hygiene rules when vacuum packing food.
Step 1: Thoroughly clean the bag opening before each use, to ensure that the edges are free of any food residues that could compromise the bag's seal.
Step 2: Position the top edge of the bag correctly, avoiding creases or wrinkles when it is inserted into the sealing machine or vacuum chamber, for a strong seal and successful packaging.
Step 3: Allow the bag to rest for a few moments after sealing, so that the heated plastic can solidify and ensure a sturdy closure that will withstand subsequent handling.
Step 4: Visually inspect each sealed bag to check that the edges are securely closed and that no air leaks are visible.
Step 5: Carefully test the seal by exerting light pressure on the pouch to locate any air bubbles or leaks. If a problem is detected, repeat the sealing procedure.
By following these practical tips, you'll be able to take full advantage of the benefits vacuum bags have to offer, and make the most of them to suit your culinary needs. When it comes to using vacuum bags over and over again, you need to adapt:
●Vacuum bags can be reused after careful cleaning and disinfection, and under certain conditions. If the previous packaging contained a cooked food without a sauce or fatty marinade, the bag can be carefully cleaned, as they are generally designed to withstand this. For reasons of hygiene and performance, we advise you not to reuse the bag. The vacuum bag is a consumable product.
●On the other hand, if the bag contains raw food or food with a fatty sauce/marinade, we recommend that you consume it within a suitable timeframe, or discard it after use.
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Frequently Asked Questions of Vacuum Package
We're professional vacuum package manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade vacuum package for sale here from our factory.
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