Frequently Asked Questions

Compressed air is widely used in the food industry for various applications such as packaging, processing, conveying, and cleaning. It is used to move food products along production lines, operate pneumatic machinery, control valves and actuators, clean surfaces and equipment, and even in direct contact with food products for drying, cooling, or aerating.

The air filtration standards for the food industry are stringent to ensure food safety and quality. Compressed air that comes into direct or indirect contact with food must be free of contaminants such as oil, water, and particles. The ISO 8573 series outlines the purity classes for compressed air. Food-grade compressed air must meet specific classes, typically requiring particulate filtration down to 0.01 microns, oil content of less than 0.01 mg/m³, and a dew point of -40°C or lower to prevent moisture contamination.

Air compressors are used in the food industry for several applications, including:

• Packaging: Used to power machinery for sealing, forming, and filling packages.
• Processing: Used in mixing, cutting, and aerating processes.
• Cleaning: Used to clean and dry equipment, containers, and surfaces.
• Conveying: Used to transport food products through pneumatic systems.
• Fermentation: Used to supply oxygen to cultures during fermentation processes.

Filtration in the food industry is critical for maintaining product quality and safety. It is used to remove particles, microorganisms, and other contaminants from air, water, and other fluids used in food processing. For compressed air, filtration is used to remove oil, moisture, and particulates that could contaminate the food products. In liquid processing, filtration ensures that water, oils, and other fluids are pure and free from contaminants that could spoil the food or pose health risks.

Compressed air is used in various industries due to its versatility, cleanliness, and reliability. It powers tools and machinery, moves products, controls automation systems, and is used in cleaning, drying, and material handling. In the food industry, compressed air is particularly valued for its ability to safely interact with food products without leaving residues or contaminants.