One question people often ask is simple: how do you open Mylar bags without damaging the contents or the packaging?

To open a Mylar bag, cut across the sealed top edge using scissors. If the bag has a zipper closure, cut above the zipper line so the bag can still be resealed. Some Mylar bags also include tear notches that allow the seal to be pulled open without tools.

Whether you're using heat sealed food storage pouches, resealable stand-up pouches, or commercial retail packages, using the correct method will help prevent damage to the product, as well as avoid accidental tearing and producing a lot of waste.

This guide provides information on how to safely open Mylar bags, what tools might be necessary, and other suggestions for safely reusing Mylar bags.

Short Answer: 

To open a Mylar bag, cut straight across the top heat seal with scissors or tear along the built-in tear notches if the pouch has them. If the bag includes a zipper, cut above the zipper line so the bag can still be resealed after opening.

What are Mylar Bags?

The process of determining Mylar bags begins with discovering what makes a Mylar bag unique when being opened.

Mylar bags are constructed from multilayer laminated polyester film and more than likely are combined with aluminum foil. This multilayer construction provides an airtight moisture barrier as well as a barrier that blocks oxygen. These bags can be found used for long-term food storage, coffee packaging, snack packaging, supplement and powder manufacturing, and even for packaging items for sale in some retail environments.

Because Mylar is designed to protect contents from both light and air, Mylar bags are almost always heat sealed, therefore requires specific techniques to open.

How To Open Mylar Bags

Each Mylar bag has its own built-in specifications due to the different types of seals made for certain bags.

1. Using Scissors (The Most Reliable Way to Open).

Opening a Mylar bag with scissors is the most reliable, safest, and easiest way to access the contents.

Procedures for opening a Mylar bag with scissors:

a. Locate the seal/ridge near the top of the bag (if applicable).
b. Cut across the top of the bag at the seal/ridge.
c. Carefully remove contents from Mylar bag.

Cutting above the zipper preserves the reseal ability of the bag, allowing it to be resealed later.

Scissors work great for opening Mylar bags of:

1. Standup pouches.
2. Food storage containers.
3. Retail or commercial product.

2. Using Tear Notches

Some retail Mylar pouches contain tear notches located on or adjacent to the top seal.

Accessing bags with tear notches:

1. Hold the tear notches securely and together with an even grip and pull apart evenly.
2. Across the top of the seal, it should be able to tear properly.

Tear notches are present to aid with creating a clean break with no tools required; however, some bag thickness may still mean that scissors are needed.

3. Cutting Heat Sealed Food Storage Pouches

Food storage pouches designed to store food long-term are often completely sealed and have no zipper closure.

To open them:

• Cut straight across the top of the bag using either a pair of scissors or a knife.
• Pour out or take out what is inside.
• Then reseal it using a household iron or a heat sealing machine.

These types of bags are commonly used for storing:

• Rice
• Beans
• Pasta
• Dehydrated meals

4. Opening Resealable Mylar Bags

A lot of the new pouches have a zipper closure just inside the heat sealed portion.

The method is as follows:

1. Cut above the zipper
2. Pull apart the zip sealed portion
3. Retrieve what's inside
   

After you're finished opening the bag, you'll be able to close it again with no tools needed because of the zipper.

Many modern stand-up pouches include a zipper closure beneath the heat seal. This allows the bag to be opened once and resealed multiple times, which is why brands often choose custom resealable mylar bags for food and retail packaging. 

Tools that Make Opening Mylar Bags Easier

Even though scissors are commonly used to open Mylar type bags, there are other tools that can aid in the process as well.

There are several useful tools such as:

1. Kitchen scissors - allow for very precise cuts
2. Utility knife - good for thicker bags that are commercially made
3. Bag openers - used within packaging facilities
4. Letter openers - for small pouches

Always cut carefully. Cutting too deep could damage any contents inside the bag.

Tips to Avoid Ruining the Bag

If you'd like to reuse the bag or keep the packaging intact, try following these tips to avoid ruining either the bag or package.

1. Cut above zipper line whenever feasible
2. Do not tear the bag from the side in a random fashion.
3. Make use of a pair of sharp scissors to create clean edges.
4. Avoid puncturing any part of the center pouch.

If you can keep the top edge of bag intact this will allow easier resealing later.

Can You Reseal a Mylar Bag After You Open it?

Yes most Mylar bags are able to be resealed.

The most common methods of resealing are:

• Impulse heat sealers
• Household clothing iron
• Hair straightener
• Built in zipper closures
  

If you are storing for an extended period of time then you should use heat sealing to restore the airtight barrier.

Why Many Brands Use Custom Resealable Mylar Bags

Many retail companies will use custom printed Mylar pouches because they provide both protection to their products as well as a means of branding.

Benefits of custom printed Mylar bags include:

1. Strong Oxygen and Moisture Barrier
2. Durable Material which protects products
3. Many Custom design options of resealable zipper
4. Large surface area for printed branding

Businesses that need professionally printed packaging often order custom resealable Mylar bags from Brandmydispo.com, which produces retail ready pouches in many shapes, sizes, styles and finishes.

Common Mistakes Made When Opening Mylar Bags

Sometimes, due to simple mistakes people can cause damage to the bag or product inside.

Some Examples of these mistakes are:

• Tearing into bag from the center
• Cutting below the zipper seal
• Using dull scissors which will shred material
• Cutting too deep into product

Taking an extra few seconds to properly open the bag will save you from waste of products as well as give you the ability to use / reseal the packaging again.

Overview

To open a sealed Mylar bag, use scissors to cut across the top sealed edge. If the bag has tear notches, pull outward from both sides to rip the seal open. For resealable pouches, cut just above the zipper so the bag can still be closed after opening.

Conclusion

Opening a Mylar bag is very easy once you know how they are sealed. Most Mylar bags can be opened safely with a pair of scissors, tear notch, or zipper depending on the style of packaging.

The most important items to remember about opening a Mylar bag is to cut above the zipper seal, maintain the zipper as much as possible, and avoid tearing the bag in random locations.

When you heed these processes, you will have access to the contents of the bag while preserving the bag for storage or resealing.