Skip to main content


Offering Over 30 Years’ Experience in Food-Safe Gases

Food manufacturers are faced with significant challenges. First and foremost, they must meet the nutritional needs of a growing global population. Second, they are under pressure to satisfy the demands of increasingly urban consumers, providing ready-to-eat and wholesome products with fewer chemical additives and preservatives. They must do this while adhering to stringent food safety rules and coping with strong competition. In consequence, manufacturers are under pressure to innovate and launch new products in shorter delays.

Providing Safe and Efficient Solutions

Food safety is at the core of our offer. Air Liquide has been a pioneer in developing food-grade gases and complying with international and local safety regulations. Today thousands of customers trust our excellence in supply chain compliance and product reliability.

Helping customers produce better food quality and improve productivity

With over 30 years’ experience in the food industry, our dedicated team of food specialists draws on R&D capabilities and unsurpassed technology to help our customers develop new products and recipes.

Combining our know-how in food processes and expertise in gas properties, we are able to invent smart solutions and equipment to meet very specific food industry requirements. We help our customers produce better food quality and improve productivity.

Supporting Food Producers from Start to Finish

As an industrial gas expert, Air Liquide provides its food industry customers with full process support and services. At the same time, we retain a strong focus on safety, hygiene and cost-efficiency.

We offer a range of food grade gases. As the industry benchmark, our ALIGAL™ products meet HACCP (Hazard Analysis Critical Control Point) standards for production and logistics of all liquids related to the agri-food industry. ALIGAL™ goes above and beyond required criteria in adhering to strict specifications in addition to offering ensured traceability along the manufacturing cycle. It comes with a traceable identification number.

ALIGAL™ products in compliance with HACCP

ALIGAL™ gases are used in different applications and food segments. Beyond gases, we are on hand, partnering with our clients to tailor comprehensive solutions (on-site audits, performance tracking etc.) adapted to their specific requirements.

Freezing and Chilling

Cryogenics freezing and chilling bring significant advantages compare to mechanical technologies such as enhancing natural taste while minimizing dehydration. Air Liquide solutions include gases, proprietary cryo equipment and application expertise. Our field experts always know when performance and quality can be improved by our freezing and chilling solutions.

Modified Atmosphere Packaging (MAP)

Different gases or mixtures can be used to enhance color, appearance and organoleptic characteristics to improve shelf life and protect food from bacteria or mold. Our field experts adapt our MAP solutions to the needs of each individual client.

Cold Transportation

Controlling the temperature inside trucks during transportation from the factory to the supermarket is of critical importance in safeguarding the quality of the products being transported. Air Liquide’s cryogenic solutions, Carbofresh™ and blueeze™, ensure the integrity of the cold chain in a safe, silent and environmentally friendly manner.

Focus on

Refrigerated Transport with blueeze™

Refrigerated transportation has evolved and cryogenic technologies are at the forefront of the change. Air Liquide’s expertise in cryogenics has led to the development of an innovative solution for cold storage truck transport known as blueeze™.

Read more

Most of the generators currently on the market produce cold using a standalone diesel generator. Technically, these motors have evolved so little that though it may seem paradoxical in urban deliveries, not only are they noisy but they also account for more than 90% of the total particle emissions generated by a refrigerated truck as a whole, power train included.

An innovative alternative solution, blueeze™ is based on nitrogen cryogenics, including a supply station for the liquid nitrogen, the onboard cold generator, and related services. The air that circulates inside the refrigerated container is cooled through the circulation of liquid nitrogen cooled to -196°C in one or more hermetically sealed exchangers before the nitrogen is released as a gas into the atmosphere.

The advantages of cryo-cooling

The blueeze™ solution developed by Air Liquide is fully operational. It offers a more reliable way to ensure that the cold chain is not broken while also bringing exceptional environmental benefits to business and local government customers:

  • Fast and highly controlled drop in temperature
  • Silent system, ideal for overnight delivers and driver comfort
  • Zero polluting emissions during operation (greenhouse gases, particulate matter, NOx, etc.), since the only by-product is nitrogen, the principal component of air
  • Sustainable: the carbon footprint is reduced by around 85% (France)
  • The technology has no internal combustion motor, resulting in less need for maintenance and maximum availability, as well as consistent cold quality regardless of the age of the cold generator

These many advantages increase the utilization rate, reduce temperature-related disputes, and expand the field of applications – all of which leads to an immediate economic added value.