Custom Smell-Proof Mylar Bags
Some products announce themselves before the bag is opened: coffee, spices, jerky, fish food, herbal products and fragrant bath blends. A standard pouch slows odor down; a smell-proof pouch keeps it in. These bags use a thicker multi-layer barrier film, wide even heat seals and a tight zipper so odor stays locked inside on the shelf, in a warehouse or in a delivery van.
We print custom smell-proof mylar bags with your brand in full color and a choice of finishes and closures.
What Makes a Bag Smell-Proof
Odor molecules pass through thin plastic film over time. A metallized or aluminum foil layer blocks that path, and a thicker food-grade inner layer gives stronger, wider seals. The zipper must close fully along its length, and the bag should be opaque so light does not break down the product and create more odor. We check seal strength on each run before it ships.
Options
- Closure: press-to-close or child-resistant zipper.
- Barrier: metallized PET for everyday use, or foil for the strongest odor and oxygen block.
- Finish: matte, gloss, soft-touch, metallic or holographic.
- Extras: tear notches, hang hole and a small window if your product needs to be seen.
Who Uses Smell-Proof Bags
Coffee roasters and spice blenders who ship alongside other goods, jerky makers, pet treat brands, herbal and cannabis brands, and bath companies selling strongly scented salts. Any product shipped in a mixed order benefits, because odor no longer transfers to the other items in the box.
Shipping Strong-Smelling Products
If you sell online, odor can travel further than you think. A smell-proof bag keeps your product from scenting the other items in a shipment and from attracting attention during delivery. For extra protection, seal the zipper fully and pack the bag inside a custom mailer box.
For bulk storage, smell-proof bags also keep scented products from tainting each other on shared warehouse shelves.
Getting the Most Odor Control
The barrier is only as good as the seal. Make sure the heat seal above the zipper is complete across the full width, press the zipper closed from end to end, and avoid overfilling, which can stress the seams. A foil barrier gives the strongest result for products with very strong aromas.
Questions Customers Ask
Are smell-proof bags reusable?
Yes. The zipper reseals many times and the barrier keeps working as long as the bag is not punctured.
Is a window possible on a smell-proof bag?
A small window is possible, but every clear area reduces the barrier slightly. For maximum odor control, choose an opaque bag.
Do smell-proof bags cost more?
Slightly, because they use thicker film and a stronger barrier. The price table shows the cost for this bag.
Bulk Pricing and How to Order
The price at the top of this page is our bulk price per bag for the largest quantity in the price table. Send your size and options on the form and we reply with your exact price and a free digital proof. Browse all child-resistant and smell-proof bags.
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Frequently asked questions
Will the bag stay smell proof after opening?
Yes, as long as the zipper is fully closed.
Why does the price say “bulk price”?
The “From” price is the price per bag for our smallest standard size when you order 5,000 bags or more. Smaller runs cost a little more per bag (see the price table), and larger sizes, extra finishes or add-ons are priced on your quote.
Is a foil layer better than metallized film?
Foil gives the strongest barrier; metallized film is lighter and costs a little less.
