Extending the shelf-life of perishable foods. Changing the atmosphere inside the packaging the shelf life of many fresh products can be extended. For example, by decreasing the amount of oxygen and increasing the carbon dioxide the shelf life of many fruits may be significantly improved. Using various gas combinations it is also possible to slow down the growth of bacteria and extend the shelf-life of other perishable foods like meat, fish and vegetables.
For packaging film barriers, the Systech Illinois range of water vapor permeation analyzers offer a wide measurement range with precision temperature, humidity and flow control. These analyzers utilise the Coulometric P2O5 sensor, which is more sensitive and stable than infra-red and does not require calibration. The P2O5 is the primary method for absolute moisture measurement.