Everyone wonders about this and is right in doing so. You purchase a bag, close it up tight, and then wonder if you will need to discard it after use. No one wants waste, and everyone wants a little more life from their custom mylar packaging. The solution is easy but is not without a couple of twists. 

Short Answer

Whether you have mylar bags with a resealable zipper or heat sealed mylar bags, they can be resealed. For heat sealable mylar bags, reseal them with a heat sealer, a flat iron, or even a household iron. 

Zipper-Style Mylar Bags

There are also Mylar bags with a zipper already fixed to them. They are easy to open and close and can be used again. You press the strip using your fingers, and it clicks shut. That's all.

Coffee remains fresh, snacks remain crunchy, herbs do not lose flavor in the night. It is like you are closing a Ziploc sandwich baggy, but it is heavier, thicker and way more durable. 

Heat-Sealed Bags

These bags are not made with a resealable zipper seal. They are heat-sealed to close. They can be sealed with a heat sealer, an ironing flat, or even a straight household iron clamped on a piece of wood.

They are air-tight and tight when sealed. To open one, you cut off the top. To reseal, you place the sealer lower and seal over. Each opening and resealing makes the custom mylar bag shorter. It still functions, but the room inside becomes smaller. 

How Frequently You Can Reseal

It simply depends upon how you are going to use it. If you're munching on dried fruit, resealing one or two times is fine.

If you're keeping rice for decades, resealing can be fine, but you need to keep the edges clean and straight. Dust, crumbs, or wrinkles at the top will make it leak. 

Quality Issues

There are those who fear resealing contaminates the bag's purity. It does not, other than if the seal is crude and uneven. Heat re-bonds the material as it originally did. 

Vulnerability is operator error. A sloppy seal lets air in. A greasy rim makes pinholes. Do it right, and your custom mylar bag performs as designed. 

Short-Term vs. Long-Term Use

Just imagine: zipper bags are made with convenience. Open, bite, close, do it again. Heat-sealed bags are for real storing.

If you open them up and slice them, you can re-seal, but it's like creating a new lock on the same door every time. At some point, you just don't have room anymore. 

A Simple Analogy

Envision a jar lid. A zipper Mylar bag is flipping that lid back and forth in any amount you want.

A heat-sealed one is sorta like a wax seal on an envelope. Open it, and you can reseal it using new wax, but the envelope gets shorter every time. 

Final Thought

Then are Mylar bags resealable and openable? Of course. The only issue is what you're going to do with them.

Short-term convenience? Zippers are the way to go.

Storage in the long term? Heat-seal, snip, reseal, repeat. Just take care with space and technique. Either way, Mylar presents you with choices, and choices equal less waste and more freedom.

To learn more visit https://www.brandmydispo.com.