Smell Proof Mylar Bags: How They Work and Why They Matter

Smell Proof Mylar Bags are designed to hold the very strong smell and [not let] the external oxygen/moisture get inside. The bags were made of several barrier films that will eliminate the escape of scent molecules from inside a single bag. They therefore are incredibly good for products that need to have a discrete storage solution and to be kept fresh for as long as possible. 

A key part of the Mylar Bags’ smell barrier is the inner (aluminum or metalized) foil layer of the pouch. The plastic barrier film of the outer layer is a far superior oxygen, light, and odor barrier than standard plastic packaging. When the aluminum layer is placed between thick outer films, it develops strong smell barrier pouches and holds onto the stored product’s aroma until they finish the entire process of storage and packaging without losing the previously stored properties. 

The resealability of the pouch closure also helps control noxious aromas and odors. Quality closures provide an airtight seal after being opened and can be re-used, while maintaining their original aroma and odor barrier characteristics. Some comparable systems include double track closures for better sealing success. 

Another factor affecting the scent barrier is the thickness of the film. Thicker mil ratings provide larger barriers to scent and also improve the durability of the pouches when shipped and handled. Therefore, companies will often choose thicker films to package products that need to be protected from scents or that need long-term storage.

In addition to their purpose, smell barrier pouches also provide multiple creative options for customization. Customers can print logos, product information, or very bold graphics onto the bags without diminishing their barrier properties or their visual appearance. This helps companies demonstrate a professional look for their product packages while still providing discreet protection for their products.

If you would like to know more about the entire process of making smell-proofs Mylar pouches, please refer to the Custom Mylar Bag Manufacturing Guide, which outlines step-by-step from the original source of raw materials to the finished product.