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Mylar and plastic are both used as means of packaging for different types of products. When it comes to food packaging bags, the wrong choice of boxes can lead to a loss of food and regret. To avoid this, it is crucial to make the right decision while choosing the best packaging for food storage.

However, it’s not that one is bad and the other is good – they simply serve different purposes. Indeed, you will have to understand the nature of both to pick the best option for the safety of your food. In this guide, I will compare the plastic and Mylar to help you pick the most suitable packaging option for your food.

Let’s get started!

What are Mylar Bags?

Mylar bags consist of strong, shiny, airtight containers made from polyethylene terephthalate. Mylar bags contain aluminum coatings that serve to block both light sources and water vapor and atmospheric air. So, customized mylar bags function excellently for protecting dry foods, including rice and grains, and flour, because they keep those items securely sealed for extended storage periods. These bags serve to shield electronic devices as well as other products that require protection from oxygen and water.

The best attribute of Mylar bags is their ability to maintain food freshness by keeping air and water outside their sealed unit. Apply heat when wrapping Mylar bags to achieve additional protection for stored contents. Although they possess low environmental friendliness, consumers must handle them carefully to protect their contents from damage.

Benefits of Mylar Bags

  • Mylar bags keep out air and moisture, which helps prevent food from spoiling.
  • They block light and protect food from UV rays that can reduce nutrients and freshness.
  • These bags are very strong and resist tears and punctures. This feature makes them reliable for storage and transport.
  • Mylar bags are excellent for long-term storage, especially for dry goods like rice, beans, and freeze-dried meals.
  • They help maintain the flavor and smell of food by sealing in freshness.
  • With proper handling, Mylar bags can be reused, making them a cost-effective option over time.
  • They are lightweight and easy to store. So, they save space in your pantry or storage area.

If you’re interested in learning more about how these features work and why they matter, we’ve explored the benefits of Mylar bags in greater detail in another article. Feel free to check it out!

What are Plastic Bags?

Plastic bags represent light-weight flexible packaging materials that arise from synthetic materials, including polyethylene and polypropylene. Due to their flexibility and cost-efficiency, plastic bags are used routinely because they come in multiple packaging designs, including resealable zippers and vacuum-sealed types.

People widely use plastic bags as food packaging boxes to protect food. Also, plastic bags demonstrate water resistance, which makes them useful for the moisture protection of items. The storage effectiveness of Mylar bags exceeds plastic bags in preventing air and light exposure that affects stored food quality. Plastic bags have shorter service lives and create environmental issues during improper waste disposal.

Benefits of Plastic Bags

  • Plastic bags are affordable and easy to find. This feature makes them a budget-friendly option for many uses.
  • They are lightweight and flexible, which makes them simple to carry, store, and pack.
  • Available in many sizes and styles, plastic bags can be customized to fit different needs.
  • Some types of plastic bags can be recycled, helping reduce waste when disposed of properly.
  • Their water-resistant nature helps protect contents from moisture during storage or transport.

Comparison of Food Packaging Bags – Mylar vs Plastic

Barrier Protection 

Mylar bags offer excellent protection against oxygen, moisture, and light, which helps preserve food much longer. On the other hand, plastic provides only basic moisture protection and allows some air and light through. 

Best choice: Mylar bags

Durability & Strength

Mylar is tear-resistant and more durable, which makes it better for long-term storage and rough handling. Plastic bags are thinner and can easily tear or puncture. 

Best choice: Mylar bags

Shelf Life & Freshness 

Because of their strong barrier properties, Mylar bags keep food fresh for a much longer time compared to plastic bags. 

Best choice: Mylar bags

Customization & Branding 

Plastic bags are easier and cheaper to customize with prints, sizes, and styles for branding. Mylar can also be customized, but at a higher cost.

Best choice: Plastic bags

Cost & Affordability 

Plastic bags are much cheaper to produce and buy in bulk. That’s why they are a cost-effective option for everyday use.

Best choice: Plastic bags

Sustainability & Environmental Impact 

Both materials can be harmful to the environment if not disposed of properly. However, some plastic bags are recyclable, while Mylar bags are not biodegradable. 

Best choice: Plastic bags (if recycled properly)

Ease of Use

Plastic bags are lightweight and easy to open, so they are convenient for quick access and frequent use. On the other hand, Mylar bags usually require a heat sealer. 

Best choice: Plastic bags

Storage Needs 

Mylar bags are ideal for long-term storage of dry goods, especially in emergency kits. Plastic bags are more suitable for short-term or everyday storage. 

Best choice: Depends on the purpose (Mylar for long-term, plastic for short-term).

Reusability 

Mylar bags can be reused multiple times if handled carefully, while most plastic bags are single-use unless designed to be resealable. 

Best choice: Mylar bags

Overall Best Choice

If your goal is long-term food storage and freshness, Mylar bags are the best option. For short-term use, cost savings, and convenience, plastic bags are more suitable.

Quick Guide – Mylar Bags vs Plastic Bags

 

Aspect Mylar Bags Plastic Bags Best Choice
Barrier Protection Excellent (Oxygen, Moisture, Light) Basic (Moisture only) Mylar bags
Durability & Strength Strong & Tear-resistant Less durable, prone to tears Mylar bags
Shelf Life & Freshness Long-term freshness Shorter freshness Mylar bags
Customization & Branding Customizable but expensive Easy & affordable Plastic bags
Cost & Affordability More expensive Cheap & affordable Plastic bags
Sustainability Non-biodegradable Recyclable (if disposed of properly) Plastic bags (if recycled)
Ease of Use Requires heat sealing Easy to open & resealable Plastic bags
Storage Needs Best for long-term storage Best for short-term storage Mylar for long-term, Plastic for short-term
Reusability Reusable Mostly single-use Mylar bags

 

What is the Key Difference Between Mylar and Plastic?

The major distinction between Mylar and plastic material exists in their fundamental composition and operational capabilities. The basic component of Mylar is polyester film that gets enhanced protection from an aluminum coating. So, Mylar offers excellent resistance to light, moisture, and oxygen for long-term storage. 

On the other hand, plastic belongs to two categories, consisting of polyethylene and polypropylene. The material type delivers greater flexibility at reduced costs however, it ensures less protection. Plastic serves everyday requirements most optimally, yet the storage needs require Mylar because of its suitability for extended preservation.

Final Thought – Mylar vs Plastic

So, the choice between plastic and Mylar simply depends on your purpose and goal!  If you want an easy, affordable, and instant packaging solution for short-term food storage, then plastic may be your best option. On the other hand, Mylar is usually a perfect choice for brands looking for a long-term food storage solution. We have made a comprehensive comparison between both for you to understand the difference and choose the right food packaging bags for your food.