The machine is equipped with a closed tunnel with overpressure of ultra-filtered air to protect the container as well as the product from the external environment. Also the lid material is sanitized using infra-red or UV lamps that kill the bacteria present, thus reducing contamination.

For even better results, sterile air is used inside the tunnel instead of filtered air. Total hygiene is guaranteed by steam treatment of the absolute filters. Also, UV rays are used instead of infrared rays for more effective sterilization.

o guarantee the extended shelf-life of products with high and low acidity, distributed without refrigeration, Benco Pack FFS machines is equipped with a patented sterile system that prevents bacterial contamination of the products during packaging through sterilization of the machine with steam and hydrogen peroxide, also sterilizing packaging materials with H2O2, and continuous overpressure of sterile air during packaging.

Even in the "hygienic" version, all operations are carried out in a controlled environment with air overpressure to avoid any contact with the external environment. To increase shelf life, ultra-hygienic and totally aseptic systems are also available, thanks to patented SACMI solutions to prevent any form of bacterial contamination during the process.