How To Use Mylar Food Storage Bags?

How To Use Mylar Food Storage Bags

Mylar food storage bags are an effective way to extend the shelf life of food by creating an airtight, vacuum-like seal that slows down the oxidation process and slows down the growth of bacteria and other microorganisms that cause spoilage.

Here’s how to use mylar food storage bags:

  • Choose the right size of mylar bag for the food you want to store.
  • Fill the bag with the food, making sure to leave some space at the top for the vacuum seal.
  • Remove any air from the bag by using a vacuum sealer or by manually squeezing out the air before sealing the bag.
  • Seal the open end of the bag using a heat sealer.
  • Label the bag with the contents and date of storage.
  • Store the bag in a cool, dry place, such as a pantry or a root cellar, to preserve the food and prevent spoilage.

It is important to follow food safety guidelines when using mylar food storage bags to prevent spoilage and food-borne illness. Make sure to properly clean and dry the bags between uses and to discard any food that shows signs of spoilage or if the vacuum seal has been broken.

In this article, we’ll explain what mylar bags are, how to use them correctly, and the advantages of using mylar food storage bags. So get ready to take your food storage game to the next level!

Understanding Mylar Food Storage Bags

Mylar is a brand name for a type of polyester film that’s known for its high tensile strength, chemical stability, and gas and aroma barrier properties. These characteristics make it an excellent choice for food storage. The material is not only durable but also resistant to punctures, ensuring that your stored food remains protected.

One key feature of Mylar bags is their exceptional barrier properties. They are highly effective at blocking oxygen and moisture, preventing these elements from reaching your stored food. This is crucial for preserving the freshness and quality of the contents, as exposure to oxygen and moisture can lead to oxidation, spoilage, and the growth of mold or bacteria.

Moreover, Mylar bags excel at blocking light, which is another important factor in food preservation. Light exposure can cause degradation of vitamins, flavors, and colors in food items. By using Mylar bags, you create a protective barrier that shields your stored goods from the harmful effects of light.

When selecting Mylar bags for food storage, it’s essential to choose high-quality ones. Quality matters because inferior bags may not provide the same level of protection. Opt for Mylar bags with a thickness suitable for your specific storage needs, ensuring they are robust enough to resist tears and punctures. Additionally, look for bags with reliable seals to maintain an airtight environment.

Mylar bags offer a combination of durability, oxygen and moisture resistance, and light-blocking capabilities that make them an ideal choice for food storage. By investing in high-quality Mylar bags, you can enhance the shelf life and overall quality of your stored food items.

Preparing Food for Mylar Storage

How To Use Mylar Food Storage Bags?

Properly preparing food for Mylar storage is crucial for ensuring its longevity and quality. Here’s a guide on how to do it:

  1. Choose the Right Foods:
    • Opt for dry and non-perishable foods for long-term storage. Examples include rice, pasta, dried beans, powdered milk, dehydrated fruits, and freeze-dried vegetables.
    • Avoid foods with high moisture content, as this can lead to mold growth and spoilage.
  2. Check for Moisture:
    • Before sealing your food in Mylar bags, ensure that it is thoroughly dry. Any moisture present can compromise the quality of the stored items over time.
  3. Use Oxygen Absorbers:
    • To enhance the shelf life of your stored food, add oxygen absorbers to the Mylar bags before sealing. Oxygen absorbers help eliminate the oxygen inside the bag, preventing oxidation and spoilage.
  4. Packaging Process:
    • Place the selected food items into the Mylar bag, leaving some space at the top for sealing.
    • If using multiple smaller bags, portion the food appropriately to minimize the need to open and expose the entire content when accessing small quantities.
  5. Remove Excess Air:
    • Before sealing the bag, it’s crucial to remove excess air to create an oxygen-free environment. This can be done using a vacuum sealer or by manually pressing the air out before sealing.
  6. Seal the Mylar Bag:
    • Ensure a tight seal to maintain the integrity of the storage environment. You can use a heat sealer for this purpose, following the manufacturer’s instructions for optimal results.
  7. Label the Bags:
    • Clearly label each Mylar bag with the contents and the date of packaging. This helps you keep track of the stored items and their expiration dates.
  8. Store in a Cool, Dark Place:
    • Once sealed, store the Mylar bags in a cool, dark place away from direct sunlight. Temperature fluctuations can affect the quality of the stored food, so choose a stable storage location.

By following these steps, you can maximize the effectiveness of Mylar bags for long-term food storage. Proper preparation and attention to detail contribute to preserving the freshness and nutritional value of your stored items.

Packing and Sealing Mylar Food Storage Bags

Here’s a step-by-step guide on how to pack and seal Mylar food storage bags:

Packing and Sealing Mylar Bags:

  1. Gather Your Materials:
    • Mylar bags
    • Oxygen absorbers (if desired)
    • Food items for storage
    • Heat sealer or iron
    • Vacuum sealer (optional)
  2. Prepare Your Work Area:
    • Choose a clean and dry workspace to ensure the hygiene of your food storage process.
  3. Measure and Portion Food:
    • Use a measuring cup or scale to portion the food items according to your storage needs. Consider how much you might use in one serving to avoid unnecessary exposure to air when accessing the stored items later.
  4. Place Oxygen Absorbers (Optional):
    • If using oxygen absorbers, place the appropriate number into each Mylar bag before adding the food. Oxygen absorbers help create an oxygen-free environment, preventing spoilage.
  5. Fill the Mylar Bags:
    • Carefully fill each Mylar bag with the measured and portioned food items. Leave some space at the top to facilitate proper sealing.
  6. Remove Excess Air:
    • If you don’t have a vacuum sealer, manually press out as much air as possible from the Mylar bag before sealing. This step is crucial to prevent oxidation and maintain food freshness.
  7. Seal the Mylar Bags:
    • There are two common methods for sealing Mylar bags:
      • Heat Sealer: Place the open end of the Mylar bag under the heat sealer and press the seal button. Follow the manufacturer’s instructions for the specific heat sealer you’re using.
      • Iron Method: Fold the open end of the Mylar bag over a few times to create a double-fold. Use a pre-heated household iron on the appropriate setting and press it along the folded edge for several seconds to create a seal. Be sure to repeat this process a few times for a secure seal.
  8. Check the Seal:
    • After sealing, visually inspect the seal to ensure it’s airtight. Run your fingers along the seal to confirm it’s secure.
  9. Label the Bags:
    • Clearly label each bag with the contents and the date of packaging. This helps you keep track of the stored items and their expiration dates.
  10. Store in a Cool, Dark Place:
    • Place the sealed Mylar bags in a cool, dark location for long-term storage.

Following these steps ensures that your food is properly packed, sealed, and ready for extended storage in Mylar bags.


Absolutely, let’s dive into those FAQs!

  1. How do I seal Mylar food storage bags?
    • Use a hot iron or a specialized heat sealer.
    • Place a piece of parchment paper over the bag opening to prevent sticking.
    • Press the hot iron or sealer along the opening to create an airtight seal.
  2. Can I use Mylar bags for long-term food storage?
    • Yes, Mylar bags are excellent for long-term storage.
    • They provide a barrier against light, moisture, and oxygen, preserving food freshness.
  3. What foods are suitable for Mylar bags?
    • Dry goods like rice, beans, pasta, and dehydrated fruits.
    • Avoid storing items with high oil content as they can permeate the Mylar.
  4. How do I protect against punctures or tears in Mylar bags?
    • Store Mylar bags in a durable container or box.
    • Handle with care and avoid sharp objects when filling or moving them.
  5. Can I reuse Mylar bags?
    • While it’s possible to reuse them, it’s not recommended for long-term food storage.
    • The integrity of the seal may be compromised after the initial use.

2 thoughts on “How To Use Mylar Food Storage Bags?”

  1. Pingback: Can You Freeze Food In Storage Bags?

  2. Pingback: How To Seal Mylar Food Storage Bags?

Comments are closed.