Here Are 7 Important Things About Custom Mylar Bags For Storing

When we search for bags to pack things, we often come across the term “mylar bag” on different websites. However, we might not fully understand what it means. Some think it’s a type of bag or packaging style, but that’s not quite right. Mylar is simply a brand name owned by a particular company.

What is a mylar bag?

Mylar is a trademarked term used by the DuPont company for a type of plastic called polyethylene terephthalate. Which is commonly used in flexible packaging materials. It consists of multiple layers of laminated plastic that are great at blocking oxygen. 

It keeps your products fresh. This makes it ideal for packaging food and beverages. 

In this article, when we say mylar bags, we refer to plastic packaging bags. These are similar to how people use “Band-Aids” to mean bandages. Keep reading to learn more about what you need to think about when customizing mylar bags.

1. How to choose the correct thickness of your custom mylar bags

To pick the right thickness for your mylar bags, consider your packaging size. For small items, go for 3.5-4.5 mil bags. But I don’t suggest 3.5 mil bags because they tear easily. For bigger items, choose 4.5-6.5 mil bags. Thicker bags are better for long-term storage as they provide more insulation. Bags below 4.5 mils aren’t good for long-term storage because they offer less protection. 

2. The barrier of a custom mylar bag is determined by the thickness and kinds of aluminum foil used

Custom mylar bags are made from different materials chosen for their specific benefits. These materials are laminated together to make a strong and handy pouch. Typically, mylar bags use aluminum foil and a mix of PET, VMPET, and PE.

The difference s of aluminum foil and aluminum plating

Many wholesalers worry that sunlight can harm products inside thin mylar bags. This concern isn’t unfounded. Thin bags can weaken the barrier that protects the products. Sunlight, oxygen, and moisture can then seep through, affecting product quality.

Aluminum foil is a thin metal sheet used in flexible packaging. It’s not heat-sealable, so it’s combined with other materials like PE. However, the barrier of aluminum plating is lower than aluminum foil. Electroplated film packaging costs less than aluminum foil packaging.

3. Can Custom Mylar bags be used in cooking and other stuff?

Many consumers heat their food in the oven while still in the packaging. Before doing this, it’s important to check if the packaging contains RCPP instead of LDPE. LDPE, when heated, can release a strong plastic smell that may harm food.

Moreover, these custom mylar bags are the perfect things to store your food stuff like weed, other edibles you want to keep dry. The mylar bags are hands down the perfect weed bags you will ever find. Not only can you  get variety in it, you can also get these custom weed bags in a very feasible way.

4. The materials you need to know if you want to vacuum your packaging

Some customers like to store their food in mylar bags and remove all the air to make it last longer. For vacuum sealing, nylon material needs to be added during the bag production.

Adding nylon makes the bag tougher and more resistant to stretching, so sharp foods won’t pierce the packaging. Before customizing your packaging, make sure to explain the features you need to your manufacturer.

5. How to confirm if your custom mylar bags BPA free or FDA food-grade

Custom mylar bags are typically made by laminating multiple layers of film. It’s important to ensure that the final layer in contact with food is either LDPE or RCPP material. Tell your manufacturers to use only 100% raw materials for making the film.

Additionally, they should provide a BPA and food-grade testing report from the FDA to confirm the safety for food products. To ensure your mylar bag meets the required standards, you can ask for samples of the inner layers (LDPE or RCPP) from the same batch. Then, send these samples to a local SGS laboratory for testing or directly to the FDA if you’re in the USA.

6. How to choose printing ways for custom mylar bags

Custom mylar bags are designed for easy printing to promote your products and boost your brand. You can choose from various printing options like digital printing, Flexo, and rotogravure. Custom printing on mylar bags enhances product visibility and customer interaction, leading to increased sales. Here are some useful tips for printing on your mylar bags:

• Use ink suitable for PET material if you’re working on printed mylar bags, instead of paper-adhesive ink.
• For large quantities, consider gravure printing to lower your unit price.

Conclusion

Custom mylar bags are ideal for long-term storage due to their high quality and durability. They have revolutionized food storage by effectively preserving freshness. Their barrier properties prevent moisture, oxygen, and light from penetrating the packaging, ensuring food stays fresh for longer periods.

If you need quality packaging for long-term storage, be it mylar bags, other storage bags or any types of packaging. You just need to search for weed bags uk and you are good to go. Feel free to send us an email, and we’ll be glad to assist you.

FAQs

1. What influences mylar bag barrier properties?

The thickness and the types of aluminum foil used during production. These factors determine how effectively the bags can block moisture, oxygen, and light from penetrating the packaging and affecting the stored food.

2. Why choose mylar bags for long-term food storage?

Because of their high-quality barrier properties. Their durability and ability to effectively keep moisture, oxygen, and light out of the packaging help preserve the freshness of the stored food.