Vacuum Sealer Vs Mylar Bags-Which Is The Best?

Vacuum sealers are machines that seal bags with a vacuum-sealed air-tight seal, whereas Mylar bags are made of a polyester film with aluminium foil coating that is heat-sealed. Both methods are used for long-term food storage. Whether you are preparing for an emergency or preserving food for later, vacuum sealing and using Mylar bags are two popular methods for retaining the freshness and longevity of your food. Vacuum sealing is a process that involves removing air from a plastic bag and sealing it with an airtight seal. This technique prevents the growth of bacteria, reducing the chances of spoilage. On the other hand, Mylar bags are made of a polyester film coated with aluminium foil and heat-sealed. Mylar bags provide a long shelf life by blocking oxygen and moisture, keeping the food inside fresh and protected. In this article, we will compare vacuum sealer vs mylar bags to help you decide which is best for your long-term storage needs.

Vacuum Sealer: The Pros And Cons

Vacuum Sealer Vs Mylar Bags

Definition And Working Mechanism Of Vacuum Sealer

A vacuum sealer is a kitchen appliance that removes air from food packaging to preserve it for longer periods. The working mechanism involves the use of a vacuum sealer to remove air from food packaging. The machine creates a vacuum inside the bag, pulls the air out and seals the bag to prevent air or moisture from entering.

Advantages Of Using A Vacuum Sealer For Long-Term Food Storage

  • The vacuum sealing process extends the shelf life of food, preventing spoilage and reducing waste
  • It is perfect for preserving foods such as fruits, vegetables, meat, fish, and poultry.
  • It preserves food quality, taste, and nutritional value, making it ideal for long-term storage
  • Vacuum sealing can save you money, as bulk food purchases can be stored longer.
  • It provides an airtight seal that can prevent freezer burn, which is a leading cause of food spoilage.

Disadvantages And Limitations Of Vacuum Sealers

  • Although vacuum sealing is an excellent way to preserve food, the technique is ineffective for some food types such as mushrooms, garlic, and soft fruits.
  • It can be quite expensive to invest in a vacuum sealer and bags that fit.
  • Some vacuum sealer machines can only seal bags of a specific size.
  • Overuse of vacuum sealing can result in food dehydration, which affects the taste and quality of the food.

Best Practices For Using A Vacuum Sealer

  • Before vacuum sealing, ensure that the food is dry and free from moisture, which can interfere with the sealing process.
  • When using a vacuum sealer for liquids or powders, freeze the food first before creating an airtight seal, which prevents the food from being sucked out of the bag.
  • Always use high-quality sealing bags to prevent air leakage that can spoil the food.
  • For easy access to food, you can portion the food into smaller bags.
  • Always label the sealed bags with the contents and the date to keep track of the shelf life of the food.

Vacuum sealing is an effective method for preserving food for long periods. By knowing its advantages, limitations, and best practices, it is easier to make the most of vacuum sealing for your long-term food storage needs.

Mylar Bags: The Pros And Cons

Definition And Working Mechanism Of Mylar Bags

Mylar bags refer to a type of food packaging option made from polyester film. These bags feature a metallic finish that makes them highly effective in providing an oxygen barrier. Mylar bags are designed to be used in conjunction with oxygen absorbers to eliminate oxygen from the package. Once this happens, the growth of bacteria, mold, and yeast is inhibited, keeping food fresh for longer.

Advantages Of Using Mylar Bags For Long-Term Food Storage

  • Mylar bags are highly effective in keeping food fresh for longer periods
  • They are designed to prevent oxygen from entering the package, which inhibits bacterial growth, preserving the food’s original taste and nutritional value
  • Mylar bags are perfect for vacuum sealing and provide an additional layer of protection to the food stored
  • This type of packaging is highly durable and flexible, making it perfect for storing food even in extreme weather conditions
  • Mylar bags are an affordable alternative to other long-term food storage options

Disadvantages And Limitations Of Mylar Bags

  • Mylar bags are not entirely puncture-proof, which means that sharp objects can accidentally puncture them, compromising the quality of the stored food.
  • If used alone, mylar bags are unable to protect food from insects or rodents.
  • They are not as effective as vacuum sealing in removing all the air from the package.

Best Practices For Using Mylar Bags

  • Always use oxygen absorbers when storing food in mylar bags
  • Use food-grade bags to ensure that the food remains safe for human consumption
  • Ensure that the bags are sealed correctly to prevent air from entering the package
  • Store your mylar bags in a cool, dry place, away from direct sunlight, to prolong their shelf life.

Mylar bags are an excellent food storage option, providing a reliable oxygen barrier and a cost-effective solution for long-term food storage. However, mylar bags have limitations that need to be considered when choosing them as a food storage option. By following the best practices outlined above, you can ensure that your food remains fresh, tasty, and safe for human consumption.

Factors To Consider When Choosing Between Vacuum Sealer VS Mylar Bags

A crucial part of food preservation is selecting the best storage method for your desired outcome. Two preferred methods are the vacuum sealer and mylar bags. So, which is the better option for you? Before settling for either of them, you need to think about the following factors:

Type Of Food To Be Stored

Different foods require unique preservation methods. Foods that are sensitive to air and moisture need airtight containers. For example, to preserve dried foods like grains, nuts, and jerky, mylar bags with oxygen absorbers are ideal. Foods with high-fat content can go rancid if exposed to moisture, oxygen, and light. Such food items should be vacuum-sealed and stored in a dark, cool place.

Length Of Storage Time Required

Your preservation goals will determine the storage time you require. If you are looking for short-term storage, vacuum sealer bags are ideal and can keep food fresh for up to five times longer. On the other hand, mylar bags with oxygen absorbers are suitable for long-term food storage and can preserve food for up to 25 years.

Amount Of Space Available For Storage

The available space significantly impacts the preservation method you choose. Vacuum-sealed food bags take up less space and are ideal if you have limited storage space. Mylar bags require extra space, especially if storing for an extended period, and the containers can be bulky.

Cost Considerations

There are costs involved in both preservation methods. Vacuum sealers require a machine, which can be pricey. However, the running cost of each sealed bag is low. Mylar bags and oxygen absorbers cost less than vacuum sealers. The trick is to consider what works for your budget in the long haul.

Ease Of Use And Convenience

When considering preservation methods, you need to think through how easy or complex it is to achieve your preservation goals. Vacuum sealers can be challenging to use, especially for beginners. Handling the vacuum sealer takes practice to avoid crushing delicate food. As for mylar bags, anyone can use them. Once the food is in the bag, add the oxygen absorber, and then seal the bag.

Choosing the best method for food preservation is crucial. Your selection criteria should include the foods you want to store, the required storage time, available storage space, overall cost, and ease of use. Understanding the various factors involved in vacuum sealing and preservation using mylar bags will ensure you make an informed decision.

Comparison Between Vacuum Sealer VS Mylar Bags

Vacuum Sealer Vs Mylar Bags

If you’re planning to store your food long-term, you’ve probably considered using a vacuum sealer or mylar bags. Both methods have their pros and cons, depending on what you’re planning to store. We will compare vacuum sealers and mylar bags to help you decide which method is best for you.

Head-To-Head Comparison Based On The Various Factors Discussed Above

Let’s take a closer look at the factors to consider when choosing between a vacuum sealer and mylar bags:


  • Vacuum sealers can be expensive, especially high-end models. However, they are cost-effective in the long run.
  • Mylar bags are relatively inexpensive and can be purchased in bulk. However, you will need a heat sealer to seal the bags.

Storage Space

  • Vacuum sealed bags take up less storage space than mylar bags.
  • Mylar bags can be bulky and require more storage space than vacuum-sealed bags.

Shelf Life

  • Food stored in vacuum-sealed bags has a shelf life of up to five times longer than traditional storage methods.
  • Mylar bags can keep food fresh for up to 25 years, making them ideal for long-term storage.

Food Type

  • Foods that are already dry, such as grains, nuts, and seeds, are ideal for storing in mylar bags.
  • Vacuum sealers are best for storing fresh foods such as meats, fish, and poultry.

Which Method Is Better For Different Types Of Foods?

  • Dry foods like grains and dried fruits are better preserved with mylar bags.
  • Foods that release gas over time such as coffee beans and dried fruits do better with vacuum sealing.
  • Fresh foods like meat and vegetables store better with vacuum sealing.
  • Keep in mind that you can also use both methods for the same food item. For example, you can vacuum seal cheese for short-term storage and then transfer it to a mylar bag for long-term storage.

Examples And Case Studies Of Successful Long-Term Storage Using Both Methods

  • Vacuum sealing has been successfully used for emergency food storage kits, such as those provided by fema.
  • Mylar bags have been used for long-term storage of dried food products, such as those used by backpackers and hikers.
  • A combination of vacuum sealing and mylar bags have been used for survival seed banks to ensure seed viability for 5+ years.

Remember, the best method for long-term storage of food depends on the food type, the shelf life required, and the storage space available. Vacuum sealers and mylar bags are both effective methods for preserving food, and the choice ultimately depends on your individual needs.


To sum up, both vacuum sealers and mylar bags have their pros and cons. Depending on your individual needs, you can choose what suits you the most. Vacuum sealers are excellent for preserving food for an extended period, and they are more efficient and durable. On the other hand, mylar bags are cheaper, easier to use, and ideal for storing non-food items. They can also be a perfect solution for storage in emergency situations. However, when it comes to long-term food preservation, vacuum sealers are the clear winner. Using vacuum sealers for food storage can help to minimize food spoilage, save money, and preserve the flavor and nutrients of your food. Overall, both vacuum sealers and mylar bags have their place in the world of storage and preservation, and it depends on your needs.

Frequently Asked Questions For Vacuum Sealer Vs Mylar Bags

Which Is Better For Long-Term Food Storage: Vacuum Sealing Or Mylar Bags?

It depends on what you’re storing and how long you want to store it. Both vacuum sealing and mylar bags offer excellent long-term storage solutions, but vacuum sealing is better for short-term storage while mylar bags are better for items you want to store for several years.

Can I Reuse Mylar Bags?

Yes, mylar bags can be washed and reused multiple times, making them an environmentally friendly option for food storage. Make sure to properly sterilize and dry the bags before reusing them to avoid contamination.

How Long Can Food Last In A Vacuum-Sealed Bag?

Vacuum-sealed foods can last up to 3-5 times longer than food stored in other ways. The length of time depends on the type of food, the temperature and humidity of your storage area, and how well the food was prepared for sealing.

Will Vacuum Sealing Prevent Freezer Burn?

Yes, vacuum sealing can help prevent freezer burn by removing all the air around the food, which stops ice crystals from forming. This makes it an ideal method for storing meat, seafood, and other perishable goods in the freezer.

Can You Vacuum Seal Liquids In A Bag?

Yes, you can vacuum seal liquids in a bag, but you need to be careful as the liquid can get sucked into the vacuum sealer. One solution is to freeze the liquid first, then vacuum seal it while it’s still frozen. This will help prevent spills and leaks.

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