How Long can Food Last in Mylar Bags?

Dehydrated food is a long-term storage favorite, highly valued by outdoor enthusiasts and emergency peppers. If you are packing food for future use or operating a food business, it can make a world of difference if you have knowledge about the right storage; it will make all the difference when it comes to both shelf life and safety. This food the best store in mylar bags. One question keeps popping up: How long does dehydrated food last in Mylar bags? 

In this article, we will discuss how Mylar bags help extend the shelf life of dehydrated foods, how long your items will last under different conditions, and what key factors can play a deciding role in making or breaking food storage attempts. Further, we will share why businesses prefer Mylar packaging and how Kwick Packaging offers reliable solutions for the bulk food storage requirements.

What Materials Are Used to Make Mylar Bags?

Mylar bags have found favor in the arena of emergency preparedness and commercial food packaging due to their long-term retention of food items. These bags are durable, block light, and keep food fresh for years. But what exactly is Mylar made from?

Mylar is a branded name of a special type of stretched polyester film called BoPET (biaxially-oriented polyethylene terephthalate). This material is strong, flexible, and resistant to moisture, oxygen, and light—three major factors that cause food to spoil. To improve these protective qualities, Mylar bags often have multiple layers, including:

• BoPET (Polyester film) for strength and flexibility
• Aluminum coating for blocking light and enhancing barrier protection
• A polyethylene layer for sealing and added durability

These layers work together to create a barrier that helps preserve food, herbs, medicines, and other sensitive items for years.

Average Shelf Life of Dehydrated Foods in Mylar Bags

Shelf life depends on many factors, but here’s a general idea of how long dehydrated foods can last when properly packed in Mylar bags with oxygen absorbers:

These are estimates based on proper storage. Let’s now look at what “proper” means.

What Affects the Shelf Life of Dehydrated Food?

There are several vital elements affecting the shelf life of dehydrated food stored in a Mylar bag. By paying attention to these points, you can avoid spoilage and waste. 

1. Exposure to Oxygen

Oxygen is a major spoilage factor for food. It causes rancidity of fats and contributes to a favorable environment for molds and bacteria. Each bag should, therefore, employ oxygen absorbers. These will mop up the lay of residual oxygen and help keep the dried food ideally for a number of years. 

2. Moisture Content

Dehydration meaning dry in this case implies that water has been removed. However, any remaining tiny particles of moisture will oppose a very short shelf life. Always make sure that dehydrated foods are dry before sealing them. This does also depend on the environment, as high-humidity has effects on dehydrated foods. 

3. Exposure to Light

Light causes the breakdown of food, especially with regard to its vitamins and fats. Mylar bags are opaque, so they keep light out very well—be sure to use the best you can find, preferably silver inside. 

4. Temperature

Keeping food cool and at stable temperatures helps to preserve it. Store your bags in a dry location where temperatures do not exceed 75°F (24°C). Avoid their storage in a garage, attic, or any place where extreme heat or freezing will occur.

5. Storage Area

A dark pantry, basement shelf, or storage closet is ideal. Avoid stacking Mylar bags directly on concrete floors, as moisture can pass through. Use plastic or wooden bins to keep bags off the ground.

Best Practices for Packing Dehydrated Food in Mylar Bags

To get the maximum shelf life out of your food, follow these basic steps:

Use the Right Bag

• Choose food-grade Mylar bags, at least 5 mil thick.
• Size depends on your needs—one-gallon bags are great for small households, while five-gallon bags work for bulk storage.

Use Oxygen Absorbers

• Use the correct size: 300cc for 1-quart bags, 2000cc for 5-gallon bags.
• Don’t open absorbers until you’re ready to seal.
• Seal quickly after inserting the absorber.

Seal Properly

• Use a heat sealer or a household iron.
• Make sure the seal is straight, tight, and complete.

Label the Bags

• Write down the food type and packing date.
• You’ll thank yourself later when rotating stock or checking supplies.

Why Businesses Use Mylar Packaging for Dehydrated Foods

It is very important that in the food industry, especially the companies involved in dehydrated foods or emergency kits, product freshness is maintained. Mylar bags provide a practical and inexpensive way of packing, shipping, and storing food in bulk volumes. 

Kwick Packaging offers bulk custom-size Mylar bags for the food industry to ensure both quality and branding. Our bags are durable and ideal for companies wanting to bulk package dehydrated ingredients or ready-to-eat meals. If you are a food vendor, reseller, or survival gear supplier, proper packaging will ensure your products live up to their freshness and safety promises to your clientele. 

Conclusion

If stored properly, dehydrated foods can last beyond 10 years. Mylar bags, together with oxygen absorbers and storage in a cool, dark place, provide as much light, air, and moisture protection as your food can ever need. Thus, they offer a perfect choice for home storage as well as commercial packaging. 

For those engaged in the food storage business, dry goods sales, and emergency kits preparation, using top-quality Mylar packaging is not just a great idea but a must. At Kwick Packaging, we understand your needs and provide the right tools to help you keep your products fresh, safe, and ready when your customers need them most.

Want to order custom Mylar bags for your business? Get in touch with us and let us help you pack your products with care and confidence.

Related Aricle: What are Mylar Bags Made of?