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Food packaging plays a critical role in preserving the quality and extending the shelf life of fresh food products. Air, and specifically the oxygen it contains, can lead to spoilage and deterioration of food items. Consequently, the removal of air through evacuation processes is essential in many food packaging applications.
Key Processes in Food Packaging:
Vacuum Packaging:
This is a prime example of vacuum application in the food industry. Vacuum packaging involves using a vacuum pump to evacuate air from the package before it is sealed. This process reduces the oxygen level, which in turn, minimizes oxidation and spoilage. Vacuum packaging is ideal for a variety of foods, including meats, cheeses, and nuts, and is facilitated by various packaging machines.
Modified Atmosphere Packaging (MAP):
MAP is another technique that benefits from vacuum technology. It entails removing the air from the packaging and then introducing a specific gas mixture to preserve the food. This custom atmosphere can significantly extend the freshness of products like fruits, vegetables, and baked goods.
Blown Film Extrusion:
In the production of plastic films for food packaging, blowers are used in a process called blown film extrusion. This involves inflating molten plastic to create a bubble, which is then transformed into films for bags and wraps.
Common Equipment for Food Packaging:
Vacuum Pumps: Integral to packaging machines, vacuum pumps are used across various systems such as chamber machines, form-fill-seal machines, carousels, and tray sealers to effectively evacuate air from the packaging.
Common Packaging Products:
Gardner Denver's vacuum technology is instrumental in the blower and vacuum industry, playing a key role in the extraction of air to meet the high standards of product safety, quality, and longevity in food packaging. This technology also caters to the market's demand for packaging solutions that are both cost-efficient and effective.