Packaging Gases & Beverage Gases

Helium E939

Helium is a food-grade inert gas identified as E939 / INS 939 and CAS 7440-59-7. In food-related applications, it is mainly considered for controlled headspace systems, modified-atmosphere concepts, oxygen displacement, specialist package leak testing, tracer-gas inspection and laboratory or pilot-plant gas applications where high purity and traceability are required.

Helium should not be described as a normal carbonation gas. Carbonated beverages use carbon dioxide, while helium is chemically inert and does not create carbonic acid, fizz or the sensory bite associated with carbonation. Industrial purchasing should focus on gas purity, impurity limits, cylinder or bulk supply mode, valve standard, regulator compatibility, oxygen-displacement safety, delivery feasibility and destination-market compliance.

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Technical overview for industrial buyers

Helium is a noble gas with extremely low chemical reactivity. In food applications, this makes it useful as an inert gas where the goal is to reduce oxygen exposure, protect sensitive materials, create a non-reactive headspace or support specialist testing. It is not normally the first choice for routine MAP because nitrogen and carbon dioxide are more widely used and usually more economical. Helium is generally considered where its unique physical properties justify the cost.

The most important practical property of helium is its small atomic size and high diffusivity. These properties make helium useful for leak testing because it can pass through very small leak paths and be detected with sensitive instruments. The same properties can make helium difficult to retain in some packages or closed systems, so packaging films, seals, valves and closures should be tested under real storage conditions.

Helium compared with common food gases

Helium is different from the gases most often used in food plants. Nitrogen is widely used for inerting and oxygen displacement. Carbon dioxide is used for carbonation, microbial inhibition and MAP systems. Oxygen may be used for red meat colour or fresh produce respiration control. Argon can be used as an inert gas in selected applications. Helium is more specialized and is often justified by leak testing, analytical detection or a specific engineering need rather than routine packaging cost.

Application-specific guidance

In package leak testing, helium can be introduced into a package headspace, chamber, seal area or test fixture and detected with a helium leak detector. This method can be useful for high-value food products, export packaging, aseptic packs, barrier packaging, flexible packs, closures, valves and food-contact equipment. The test procedure should define leak-rate limits, dwell time, background control, sampling method and pass/fail criteria.

In inert headspace projects, helium should be compared against nitrogen and argon before approval. Helium may be technically effective for oxygen displacement, but because it diffuses rapidly and can be expensive, it may not be the best commercial choice for routine packs. Packaging validation should include gas retention, oxygen ingress, seal integrity, shelf-life stability and sensory performance.

In beverage or food demonstrations, helium should not be marketed as a carbonation replacement. It has very different solubility and sensory behaviour compared with carbon dioxide. Any use involving finished beverages, label claims, novelty effects or consumer exposure should be reviewed carefully for safety, regulatory acceptance, claims and packaging performance.

Safety and handling considerations

Helium is non-flammable, non-toxic and chemically inert, but it can create oxygen-deficient atmospheres in poorly ventilated areas. Cylinders should be stored upright, secured against falling and protected from heat, impact and unauthorized handling. Gas release in small rooms, pits, confined spaces or low-ventilation areas should be avoided unless oxygen monitoring and ventilation controls are in place.

Compressed helium systems require compatible regulators, hoses, valves and pressure-rated fittings. Buyers should confirm cylinder pressure, valve connection, regulator standard, flow requirement, pressure control and local cylinder handling rules before ordering. Helium can leak through very small openings, so leak-tight connections and regular inspection are important for both safety and cost control.

For food facilities, helium use should be integrated with HACCP, food-contact controls, preventive maintenance and EHS procedures. The gas-contact path should be clean and suitable for food use when helium contacts food, beverage, packaging headspace or food-contact surfaces. Operators should be trained not to inhale helium intentionally and to treat compressed-gas cylinders as industrial pressure equipment.

Regulatory and compliance notes

Helium is commonly identified as E939 / INS 939 in food gas and packaging gas systems. Regulatory treatment depends on destination country, food category, technical function, whether the gas remains in the final package, whether it is used as a processing aid, and whether it contacts food, beverage, packaging headspace or food-contact equipment.

A gas used only for package leak testing may be treated differently from a gas intentionally retained in a food package. A gas used in the headspace of a packaged food may require label review as a packaging gas or modified atmosphere component, depending on local rules. Buyers should confirm the intended function and declaration with local food law, the gas supplier and customer standards.

Compliance is not limited to food law. Helium cylinders are compressed-gas pressure vessels and may be subject to transport, storage, workplace safety and pressure-equipment regulations. Procurement should verify dangerous-goods documentation where applicable, cylinder ownership, return terms, storage limits, ventilation expectations and local occupational-safety requirements.

Documents to request

• Gas specification or technical data sheet with purity and impurity limits
• Certificate of analysis for the delivered cylinder, bundle, trailer or production batch
• Food-grade, beverage-grade or food-contact suitability statement where applicable
• Safety data sheet for compressed helium
• Origin, production method and supply-chain traceability statement where required
• Oxygen, moisture, nitrogen, hydrogen, neon, argon and hydrocarbon impurity data where relevant
• Cylinder, bundle or bulk supply details including pressure, capacity and valve connection
• Transport classification, UN number where applicable and local delivery requirements
• Gas mixture certificate if helium is supplied blended with another gas
• Regulatory compliance statement for E939 / INS 939 or local food-gas status where required
• HACCP, ISO, food-safety or quality-system certificates from the gas supplier where available
• Regulator compatibility, safe-handling guidance and storage recommendations
• Shelf-life or cylinder retest policy, storage conditions and returnable-cylinder terms
• Market-specific declarations required by the destination country or customer standard

Packaging, storage and logistics

Helium is usually supplied in high-pressure cylinders, cylinder bundles, tube trailers or other gas supply formats depending on volume, location and local gas infrastructure. Supply mode depends on daily consumption, required pressure, delivery frequency, site access, cylinder-handling capability and distance from the gas supplier. Because helium can be supply-sensitive and expensive, buyers should plan lead time and backup supply options for continuous operations.

Cylinders should be stored upright, secured, capped when not in use, protected from heat and handled according to supplier instructions. Storage areas should be ventilated and controlled to prevent damage, unauthorized use and oxygen-displacement risk. Empty cylinders should be closed, labelled, segregated and returned according to supplier rules.

For larger users, a gas supplier may need to review pressure requirements, pipework, regulators, flow demand, storage location, cylinder manifold design, leak testing and emergency procedures. Buyers should confirm whether the delivery site can receive cylinders, bundles or bulk supply before placing an order.

How Global Food Additives supports sourcing

Global Food Additives can help compare Helium supply options by gas grade, purity, impurity profile, food-gas documentation, cylinder or bulk supply format, delivery feasibility, safety documentation and commercial availability. For industrial customers, the fastest sourcing route is to provide the application, required purity, expected gas volume, destination country, preferred supply mode and whether the gas will contact food or packaging headspace.

For new product development or packaging validation, our team can coordinate sample-cylinder options and supplier questions around food-grade documentation, gas mixtures, helium leak testing, cylinder compatibility, pressure control, delivery logistics and market-specific declarations. Final process design, gas installation, EHS approval, use level, regulatory review, label declaration and finished-product suitability remain the responsibility of the manufacturer.

How to request this product

Send the product name, target purity, application, required supply mode, quantity, pressure or flow requirement, destination country, delivery location, valve or regulator requirement, expected delivery date and required documents. If you already purchase Helium, attach or describe your existing gas specification, certificate of analysis, cylinder format, valve standard, supplier reference or test method so options can be compared accurately.