Food Grade Transparent Nylon Laminated PE, PET/PE Vacuum Bag Vacuum pouches, also known as food vacuum pouches or barrier vacuum pouches, provide a barrier to atmospheric and moisture vapors. PRODUCT DESCRIPTION Vacuum pouches for every need Vacuum pouches, also known as food vacuum pouches or barrier vacuum pouches, provide a barrier to atmospheric and moisture vapors. Vacuum pouches are developed for machines that perform external vacuum. Miniature layered vacuum pouches are made of food-grade plastic material. These vacuum pouches are suitable for use in chamber vacuum sealers. These bags consist of 2 smooth layers of polyamide (nylon)-polyethylene barrier material. 3 mil is the most common thickness of vacuum bags that meet USDA food packaging standards. These bags do not have a fine mesh layer because the chamber vacuum machine evacuates the air as the bag enters the chamber. Xiaohu Imp & Exp Trading-Vacuum Pouches Manufacturer As a leading manufacturer of vacuum pouches in China, Xiaohu Imp & Exp Trading offers a wide range of vacuum pouches manufactured on high-tech machines for various food applications with longer shelf life.