Mylar Bags vs Vacuum Sealing for Food Preservation -Bagnpouch

28 Jul.,2025

 

Mylar Bags vs Vacuum Sealing for Food Preservation -Bagnpouch

Preserving food is crucial for extending its shelf life, maintaining freshness, and preventing spoilage. Two popular methods for achieving this are using mylar bags and vacuum sealing. While both techniques aim to remove air (xoygen) and moisture, which can cause food to deteriorate, they differ in their approach and suitability for various situations.

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Mylar bags are made of aluminum-coated polyester, creating an impermeable barrier against air, moisture, and light. They're often used with oxygen absorbers to create an anaerobic environment that slows oxidation and microbial growth. Vacuum sealing removes air from plastic bags or containers using a vacuum sealer machine, creating an airtight seal that minimizes air exposure and spoilage risk.

In this blog post, we will explore the advantages and disadvantages of using mylar bags vs. vacuum sealing for food preservation, helping you choose the suitable method for your needs.

What are Mylar Bags Packaging?

Mylar bags, also known as sealable mylar pouches, are a popular choice for long-term food storage. These bags are made from a specialized material called mylar, which is a combination of polyester and aluminum. The aluminum layer provides an impermeable barrier against air, moisture, and light, while the polyester offers durability and strength.

The key properties of mylar bags that make them suitable for food preservation include:

  • Oxygen and moisture resistance: The aluminum layer prevents oxygen and moisture from entering the bag, creating an anaerobic (oxygen-free) environment that inhibits the growth of microorganisms and slows down the oxidation process, which can cause food to spoil.
  • Light protection: The opaque nature of mylar bags blocks out light, preventing light-induced degradation of food items.
  • Puncture and tear resistance: The polyester layer makes mylar bags resistant to punctures and tears, ensuring the integrity of the packaging during storage and transportation.

Oxygen absorbers are often used with mylar bags to remove residual oxygen, creating a truly anaerobic environment for optimal preservation.

The principles behind mylar bag packaging revolve around minimizing factors that contribute to food spoilage, such as oxygen, moisture, light, and microbial growth. By removing these elements, mylar bags can significantly extend the shelf life of various food items for long-term storage.

Pros of Mylar Bags

  • Excellent barrier against moisture, oxygen, and light: The aluminum layer in mylar bags creates an impermeable barrier that effectively blocks out environmental factors that can degrade food quality. This barrier ensures optimal preservation by preventing moisture intrusion, oxygen exposure, and light-induced degradation.
  • Long shelf life for dry goods: By creating an oxygen-free environment, mylar bags significantly extend the shelf life of dry goods, such as grains, legumes, and dehydrated foods. The anaerobic condition slows down oxidation processes, allowing these foods to remain fresh for years.
  • Ease of use: Mylar bags are lightweight and compact, making them easy to store and transport. They can be efficiently stacked or stored in small spaces, maximizing storage capacity while minimizing the required footprint.

Cons of Mylar Bags

  • Limited suitability for wet or fresh foods: While mylar bags excel at preserving dry goods, they are not well-suited for storing wet or fresh foods. The potential for moisture buildup can lead to spoilage and the growth of harmful microorganisms.
  • Potential for punctures or seal failures: Although mylar bags are puncture-resistant, they can still be punctured or develop seal failures, compromising the anaerobic environment and rendering the food susceptible to spoilage.
  • Upfront cost of bags and oxygen absorbers: Investing in high-quality mylar bags and oxygen absorbers can be more expensive than some other food storage methods, especially for large quantities or long-term storage needs.

What is Vacuum Sealing?

Vacuum sealing is a food preservation method that involves removing air from a plastic pouch or container and creating an airtight seal. This process prevents oxidation and inhibits microbial growth, extending food's shelf life.

The principles involve removing air (containing oxygen and moisture) from packaging. This anaerobic (oxygen-free) environment inhibits the growth of aerobic bacteria, mold, and other microorganisms that thrive in the presence of oxygen.

Types of Vacuum Sealers

Vacuum sealers come in two main types: external and chamber vacuum sealers.

External vacuum sealers are the most common and affordable option for home use. These sealers have a removable vacuum chamber where the open end of a plastic bag is inserted. The machine then removes the air from the bag and seals it shut, creating an airtight package.

Chamber vacuum sealers are typically used in commercial or industrial settings. With these sealers, the entire bag or container is placed inside a vacuum chamber. The chamber is then depressurized, removing all air from the packaging before sealing it. Chamber vacuum sealers are more expensive but offer a higher level of vacuum and are better suited for packaging liquids or delicate items.

Pros of Vacuum Sealing

  • Versatility for various food types (dry, wet, fresh): Vacuum sealing is suitable for preserving a wide range of food items, including dry goods, wet foods, and fresh produce. The airtight seal protects against oxidation and moisture loss, making it an effective method for diverse food types.
  • Compact storage and portion control: Vacuum-sealed bags can be compressed to remove excess air, resulting in compact storage and efficient use of space. Additionally, vacuum sealing allows for easy portion control, as you can seal individual servings or meal-sized portions.
  • Potential for sous vide cooking: Vacuum-sealed bags can be used for sous vide cooking, a technique where food is cooked in a water bath at precisely controlled temperatures.

Cons of Vacuum Sealing

  • Limited shelf life: While vacuum sealing extends the shelf life of food, it generally does not provide as long of a shelf life as mylar bags, especially for dry goods and dehydrated foods.
  • Potential for air leaks: If the vacuum seal is compromised due to punctures, leaks, or improper sealing, air can enter the package, leading to spoilage and reducing the effectiveness of the preservation method.
  • Additional cost of vacuum sealer: Investing in a quality vacuum sealer and compatible bags can be more expensive than some other food storage methods, especially for occasional or small-scale use.

Mylar Bags vs Vacuum Sealing: Which Is Best?

There is no one-size-fits-all packaging solution for food preservation. Each method has its advantages and disadvantages, and the ideal choice depends on your specific needs and circumstances.

Here's an objective comparison to help you make an informed decision:

Scenarios Where Mylar Bags are Preferable

Mylar bags are an excellent choice for long-term storage of dry goods and dehydrated foods, emergency preparedness, and bulk storage with limited space. Their impermeable barrier against moisture, oxygen, and light creates an ideal environment for preserving the quality and shelf life of these types of foods.

To maximize the benefits of mylar bags, follow these practical tips:

  • Use high-quality thicker mylar bags with a thick aluminum layer for optimal protection.
  • Include oxygen absorbers in each bag to remove residual oxygen and create an anaerobic environment.
  • Ensure proper sealing techniques, such as using a heat sealer or iron to create an airtight seal.
  • Store mylar bags in a cool, dry, and dark location to prevent moisture buildup and light exposure.

Mylar bags are particularly suitable for long-term storage for preppers, emergency preparedness, and food security scenarios, as well as for outdoor enthusiasts who need compact and lightweight food storage solutions.

Scenarios Where Vacuum Sealing is Preferable

Vacuum sealing is a versatile method suitable for short to medium-term storage of various food types, including wet and fresh foods. It's also an excellent choice for portion control, meal prep, and sous vide cooking.When using vacuum sealing, consider these practical tips:

  • Choose a vacuum sealer with appropriate features and capacity for your needs (e.g., external or chamber sealer).
  • Use high-quality vacuum bags or rolls designed for food storage.
  • Ensure proper sealing techniques to create an airtight seal and prevent air leaks.
  • For extended storage, consider using the Modified Atmosphere Packaging (MAP) option, if available, to flush the package with protective gases.
  • Store vacuum-sealed packages in a cool, dry location, away from direct sunlight and heat sources.

Vacuum sealing is particularly beneficial for budget-conscious consumers looking to reduce food waste and extend the shelf life of various food items, as well as for those who enjoy sous vide cooking or marinating meats and vegetables.

Want more information on custom vacuum seal bags? Feel free to contact us.

Both mylar bags and vacuum sealing can effectively preserve food when used correctly. Consider your specific needs, storage duration, food types, and budget to determine the most suitable method for your situation.

Conclusion

The choice between mylar bags and vacuum sealing for food preservation depends on your specific needs and priorities.

Mylar bags excel for long-term storage of dry goods and dehydrated foods, offering an impermeable barrier against moisture, oxygen, and light. Their compact nature also makes them suitable for emergency preparedness and bulk storage.

Vacuum sealing provides versatility, accommodating various food types, including wet and fresh items. It effectively extends shelf life through an airtight seal, making it ideal for short to medium-term storage, portion control, and sous vide cooking.

Both mylar bags and vacuum sealing can be effective when used correctly in appropriate scenarios. Understand the nuances, follow best practices, and choose the approach that best suits your lifestyle and goals.

Vacuum Sealers vs. Vacuum-Sealed Containers: Which Is Better For ...

Vacuum Sealers vs. Vacuum-Sealed Containers: Which Is Better For Your Food Storage?

For keeping food fresh and lasting longer, vacuum sealers and vacuum-sealed storage containers are the most familiar products we know of on the market. And which one is better for storing food? Depending on the food type, we have to choose different ways to store it.


That's to say; there’s not just one answer for every food. But we are here to help you discover the pros and cons of the vacuum sealer and the vacuum-sealed storage container, which is the best choice for storing your food.

1. Vacuum Sealers - Advantage and Disadvantage


First, we start from the price; vacuum sealers can be easily distinct into three dimensions with different price ranges and functions.

  • From the basic, budget vacuum sealers range from $40 to $100.
  • The second level, mid to higher-end vacuum sealers, range from $100 to $300.
  • And last, professional vacuum sealers are usually $300 and above.

It isn’t easy to compare all kinds of vacuum sealers with vacuum-sealed containers. So this blog will be on mid to higher-end vacuum sealers.

Mid to higher-end vacuum sealers usually feature roll storage with a built-in cutter bar to make custom-sized bags; an alignment tool ensures bag placement; one handheld sealer and accessory hose; one removable drip tray.

Advantage of Vacuum Sealers


  • Save Space
Vacuum-sealed bags reduce the volume of the contents and package by removing the air inside.

  • Seal 2 Ways
Combines heat sealer for freeze storage and handheld vacuum sealer for fridge and pantry storage.

  • Multi-Use Preservation and Function

Seal food for sous vide cooking and marinating, and dry and moist mode for an airtight seal. Vacuum seal bags can prevent freezer burn; suited for meal prep and portioning; simmer and microwave safe.

The disadvantage of Vacuum Sealers

  • Bulk Machine
Mid to high-end vacuum sealers are big and heavy due to their various functions. In addition, it takes energy to move the machine to different places.

  • Not Suitable for Delicate Food and Food That Emits Gases
With air going out, delicate food in the vacuum seal bags is difficult to keep the original appearance or easily be crushed, such as chips, lettuce, bread, etc.
Some vegetables emit natural gases that might cause a loss of vacuum, like raw onions, garlic, cabbage, and so on.

  • Not Eco-Friendly

You cannot start vacuum sealers without electricity. Even if vacuum sealers are usable, vacuum seal bags are not. So you have to keep buying single-use plastic bags that are harmful to the environment.

2. Vacuum-sealed Food Storage Containers- Advantage and Disadvantage

Without bulky machines, vacuum-sealed containers are cheaper than vacuum sealers. This price on the market would be:

  • Vacuum containers range from $20 to $50. (Pump system sold separately)
  • Vacuum canisters range from $30 to $40. (Without extra equipment)
  • Turn-N-Seal Vacuum-sealed storage containers range from $29 to $57.


Most vacuum containers on the market need to be used with pumps you have to buy separately. However, a few vacuum canisters that can be used without extra equipment are the kind of vacuum containers we will compare in this blog.


Advantage of Vacuum-sealed Food Storage Containers

  • User-Friendly

Easy to use, no extra equipment needed, cover the lid for airtight mode, and twist or press the lid to seal the vacuum.

  • Organized and Solid

Some vacuum containers are stackable, making your fridge and pantry tidy and clean. Then you don’t need to worry about food dropping down from the shelf. Prevent food stab out of the package and protect food from being crushed by vacuum seal pressure. So you can store bread, chips, lettuce, and other delicate food.

  • Frequent Use

Available for daily usage, such as cereal, nuts, coffee beans, bread, etc.

  • Sustainable

Vacuum-sealed storage containers are reusable. Clean them after use, and store other food for vacuum seal again. And can be recycled at the end of a product’s life.


Disadvantages of Vacuum-sealed Containers

  • Limited function

Cannot be used in a microwave, oven, or boil. Not preferred for meat storage.

  • Takes space

Compared to vacuum seal bags, vacuum-sealed containers take more space on the shelf.


See the below table to find which vacuum seal ways fit your food storage,

 Food type Vacuum sealer  Vacuum seal container Beef & poultry Preferred Fish Preferred Soup & stews Preferred Coffee beans Preferred Nuts Preferred Delicate food Preferred Vegetables Both Both Veget emit gases
(Raw Onions / Garlic / Cabbage / Lettuce) Preferred Bread Both Both Cheese Both Both Soft Bread/cheese Preferred Fruit Both Both Whole Apple/
Raw Banana  Preferred Berries Both Both Pickle Both Both Flour & sugar Preferred Rice & pasta Both Both Cereal Preferred
  • Vacuum sealers have multiple features suitable for various food types of storage. But there are more accessories you have to take care of—the better choice for meal preparation and portion.
  • Vacuum-sealed containers are suitable for everyday use and long-term storage as well. Keep food shaped as how it is and avoid food squeezing by vacuum-sealing pressure.


Final Thoughts on Vacuum sealer vs. Vacuum-sealed storage containers


So now you ask, with vacuum sealer vs. vacuum-sealed storage containers, which should I choose?

Truthfully, both are great options. It all just depends on your individual needs.

Ask yourself these questions as a good starting point:

  • What kinds of food do I want to store?
  • How much money am I comfortable spending on food storage?
  • How important is using reusable products?
  • How often do I take out the food from the package?
  • Do I need it for meal portions or daily use?


At Ankomn, we care about keeping food fresh and lasting longer, which is why we are available to help you make the best decision on vacuum seal products.

To learn more about vacuum-sealer containers, check this out!. As an eco-friendly brand, each turn on the lid of Turn-N-Seal vacuum-sealed container eliminates the use of a single-use plastic bag.

If you are looking for more details, kindly visit retort pouch manufacturers.