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The highest quality and safety in food-grade gases

ALIGAL™ is Air Liquide’s international line of food-grade gases created for the processing and packaging of beverages and foods. ALIGAL ensures the highest quality and safety standards in Modified Atmosphere Packaging (MAP), chilling, freezing, carbonation and inerting processes to optimize food safety and preservation, processing costs and product quality.

ALIGAL single and mixed gases are designed to satisfy the demanding quality requirements of the food and beverage industries. They are used extensively in MAP for a wide variety of food products.

By preserving the freshest characteristics of foods and extending shelf life, ALIGAL food-quality gases empower food processors and retailers to:

  • Reduce product returns
  • Gain greater flexibility in production scheduling
  • Improve product consistency
  • Control inventory more effectively and economically
  • Distribute products over greater distances
  • Strengthen the branding of value-added products


ALIGAL pure gases and gas mixtures preserve the natural color and flavor of fresh food and beverages while inhibiting spoilage due to oxidation, bacteria and mold, which typically occurs as a result of exposure to air. Each ALIGAL protective atmosphere gas has been scientifically formulated to address the specific shelf life requirements of a wide selection of foods, ranging from case-ready meats, fresh poultry, processed meats, cheese and freshly cut salads to prepared entrées, fresh pasta, sandwich kits, snack foods and bakery products.

ALIGAL gases are available in a range of blends appropriate to specific foods and meet standards for approved food packaging uses. They are colorless and odorless and comply with procedure controls and quality assurance throughout the production process. Strict filling and testing procedures assure a consistent and quality product.

Beverage-quality ALIGAL gases help eliminate flat beer, airborne bacteria and odors associated with air compressors. They also improve shelf life with oxygen reduction via purging or dosing, as well as quality control for better product consistency. Optimized carbon dioxide ranges and packaging options deliver purity to suit any application.

Related Supply Modes

ALIGAL food-grade gases can be delivered in single cylinders, multi-cylinder packs or in bulk volumes, depending on your needs. Air Liquide can also produce ALIGAL gases on-site at your facility.

Related Equipment

In addition to ALIGAL brand freezers, specially suited regulators, changeover manifolds, gas detection monitors and miscellaneous gas handling equipment available.

Related Services

Air Liquide offers product testing and freezing optimization services to help ensure the best possible results for any food product. We also provide installation and start-up support, including on-site personnel training to help ensure safe and proper use of ALIGAL products.

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