Oxygen E948
Oxygen is a food-grade packaging gas and atmosphere-control ingredient used where oxygen level directly affects product appearance, respiration, oxidation behavior, microbial ecology or headspace performance. In industrial food manufacturing, Oxygen E948 is normally evaluated as part of a complete packaging system: gas blend, film barrier, sealing quality, cold chain, product temperature, residual oxygen target, shelf-life study and destination-market compliance.
Product identity
| Product | Oxygen |
|---|---|
| Common industrial name | Food-grade oxygen / packaging oxygen / O2 |
| Category | Packaging Gases & Beverage Gases |
| Function | Packaging gas, headspace-control gas, oxygen-management gas and selected beverage/process gas |
| E / INS number | E948 |
| CAS / identity | 7782-44-7 |
| Chemical formula | O2 |
| Typical form | Compressed gas, liquefied gas, cylinder bundle or bulk supply |
| Procurement focus | Food-grade status, purity, impurity profile, cylinder traceability, valve compatibility, regulatory declaration and safe logistics |
Application fit
Potential use or review areas may include:
- High-oxygen MAP for fresh red meat color management
- Fresh produce and fresh-cut produce respiration control
- Controlled atmosphere or modified atmosphere packaging trials
- Beverage plants requiring controlled oxygen dosing or oxygen-management review
- Packaging-line validation, residual oxygen monitoring and gas-mix optimization
- Quality control programs for headspace oxygen measurement
Industrial role in food packaging
Oxygen is not used in the same way for every food. Its value depends on whether the target product benefits from oxygen presence or requires oxygen reduction. In fresh red meat, oxygen can help maintain the bright red oxymyoglobin appearance expected in retail display. In fresh produce, a controlled oxygen level may support respiration balance and help avoid anaerobic off-flavors. In oxidation-sensitive foods such as coffee, nuts, oils, snacks, powdered products and many dry mixes, oxygen is normally treated as a risk factor to be reduced, measured or displaced rather than deliberately added.
Typical application matrix
Fresh red meat
Oxygen may be used in high-oxygen modified-atmosphere packaging to support red color development and retail appearance. The pack design is usually evaluated together with carbon dioxide level, drip control, tray absorbency, seal integrity, cold chain and microbiological shelf-life validation.
- Key objective: color stability and consumer appearance
- Common controls: gas ratio, residual oxygen, pack leakage, storage temperature
- Important limitation: oxygen does not replace hygiene, refrigeration or shelf-life testing
Fresh produce
For fruits, vegetables, mushrooms, salads and fresh-cut produce, oxygen is part of the respiration balance. Too much oxygen may accelerate respiration and quality loss; too little oxygen may encourage anaerobic metabolism, fermentation notes, texture loss or package swelling. Film permeability and product respiration rate are therefore critical.
- Key objective: controlled respiration and quality retention
- Common controls: O2 / CO2 balance, film OTR, WVTR, temperature, cut surface area
- Important limitation: each produce item requires its own atmosphere window
Beverage and fermentation operations
In beverage production, oxygen may be relevant for controlled oxygen dosing, yeast propagation, fermentation support, wort aeration or process validation. For finished oxygen-sensitive beverages, the technical goal is often the opposite: minimizing dissolved oxygen and headspace oxygen to protect flavor, aroma, color and shelf life.
- Key objective: controlled oxygen addition or oxygen minimization depending on process stage
- Common controls: dissolved oxygen, flow rate, sanitary gas filtration, dosing point, contact time
- Important limitation: oxygen dosing should follow the beverage producer's process specification
Coffee, bakery, snacks and dry foods
These products are often sensitive to oxidative rancidity, aroma loss, color change or stale notes. Oxygen is usually not selected as the protective atmosphere; instead, oxygen is measured and reduced through nitrogen flushing, barrier packaging, oxygen scavengers or improved sealing controls.
- Key objective: oxygen control and oxidation prevention
- Common controls: residual O2, package leak rate, film barrier, flushing efficiency
- Important limitation: oxygen presence may reduce shelf life in many dry or fat-containing foods
Specification review points for buyers
For industrial purchasing, the most valuable specification review is not limited to the gas name. Buyers should compare the supplier specification with the intended application, destination-market rules, equipment requirements and site safety standards. A strong inquiry normally defines the required grade, reference specification, physical supply form, monthly volume, cylinder or tank preference, delivery term and document package.
| Review area | What to check |
|---|---|
| Food-grade status | Confirm that the gas is supplied for food use and supported by a food-grade, food-additive or packaging-gas declaration suitable for the destination market. |
| Purity and impurity limits | Request purity basis and limits for relevant impurities such as moisture, nitrogen, argon, carbon monoxide, carbon dioxide, hydrocarbons, oil residues or other specification-controlled components. |
| Batch or fill traceability | Confirm cylinder, bundle, trailer or tank traceability and whether a certificate of analysis, fill certificate or batch statement can be supplied. |
| Supply form | Define compressed cylinder, cylinder bundle, microbulk, cryogenic liquid oxygen or bulk tank requirement based on line consumption, site infrastructure and local gas availability. |
| Valve and connection | Confirm valve standard, regulator compatibility, oxygen-clean equipment requirement and local cylinder connection standards before shipment. |
| Process compatibility | Check compatibility with MAP equipment, gas mixers, flowmeters, dosing skids, sterile filters, beverage aeration points, analyzers and packaging-line controls. |
| Regulatory responsibility | Verify permitted use, labeling language, additive declaration, food category permissions and any country-specific import or safety requirements. |
MAP design and process-control considerations
Oxygen performance in modified-atmosphere packaging depends on system design. A packaging trial should define the gas-mixture target, initial residual oxygen, equilibrium headspace composition, sealing method, film oxygen transmission rate, pack volume, product mass, storage temperature, distribution time and acceptance criteria. For respiring products, the atmosphere changes during shelf life; for non-respiring products, the main concerns are leakage, permeation and oxygen trapped during filling.
Packaging-line controls
- Gas-mixer calibration and verification
- Flow-rate and flushing-time control
- Vacuum-gas cycle validation for tray sealers or thermoformers
- Headspace analyzer checks at start-up, changeover and routine intervals
- Leak testing, seal inspection and residual oxygen trend monitoring
Packaging-material controls
- Oxygen transmission rate and water vapor transmission rate review
- Sealant-layer compatibility with product and tray material
- Anti-fog, puncture resistance and mechanical strength requirements
- Barrier performance at actual storage temperature and humidity
- Headspace volume and pack geometry optimization
Food-safety controls
- HACCP review for the specific food category and packaging process
- Cold-chain validation and temperature-abuse assessment
- Microbiological shelf-life testing under real distribution conditions
- Challenge testing where required by customer or regulation
- Clear labeling and consumer storage instructions where applicable
Quality-release controls
- Incoming gas document review
- Gas identity and connection verification
- Residual oxygen or headspace composition records
- Corrective-action limits for out-of-spec headspace results
- Retention of certificates, analyzer calibration and lot records
Safety and handling considerations
Oxygen is not flammable, but it strongly supports combustion and can make many materials ignite more easily or burn more intensely. Industrial users should handle oxygen systems with oxygen-compatible equipment, oil-free and grease-free components, trained personnel, correct cylinder securing, proper ventilation, separation from fuels and ignition sources, and site procedures for compressed gas or cryogenic liquid oxygen where applicable.
Documents to request
For a food manufacturer, distributor or importer, documentation can be as important as the gas itself. Requirements vary by country and by customer audit standard, but industrial buyers commonly request the following:
- Product specification or technical data sheet
- Food-grade, food-additive or packaging-gas compliance declaration
- Certificate of analysis, fill certificate or lot/batch traceability statement
- Safety data sheet for compressed oxygen or liquid oxygen supply
- Origin, manufacturer or filling-site information where available
- Valve type, cylinder size, bundle configuration, pallet or tank details
- Transport classification and shipping documents required for compressed or cryogenic gas
- Allergen, GMO, animal-origin, halal, kosher or vegan statements when requested by the buyer's quality system
- Statement of conformity for the destination market where available
- Shelf-life, cylinder-retest, storage and handling guidance where applicable
Procurement information to include in your inquiry
To receive a faster and more accurate quotation for Oxygen E948, send a complete technical and commercial request. If you already purchase oxygen from another supplier, attach your current specification, gas certificate, cylinder photo, valve standard, consumption history or packaging-line requirement so supplier options can be compared accurately.
| Information needed | Example details to provide |
|---|---|
| Application | Fresh meat MAP, produce MAP, beverage oxygen dosing, fermentation support, process gas, laboratory/quality control or other use. |
| Required grade | Food grade, E948, customer specification, national standard, internal company code or reference supplier specification. |
| Gas mixture | Pure oxygen or target blend with carbon dioxide, nitrogen or other approved packaging gases. |
| Consumption | Cylinder count, bundle count, Nm3/month, kg/month, line consumption, peak demand or annual forecast. |
| Packaging system | Tray sealer, thermoforming line, flow-wrapper, vertical form-fill-seal, beverage aeration skid, tank dosing system or gas mixer. |
| Supply preference | Single cylinders, cylinder bundles, microbulk, cryogenic liquid oxygen or bulk tank delivery. |
| Destination | Country, city, delivery term, port, warehouse, site restrictions and unloading requirements. |
| Documents | Specification, CoA, SDS, food-grade declaration, import documents, customer declarations and audit-specific statements. |
Commercial and logistics notes
Oxygen supply is strongly influenced by local gas infrastructure, cylinder ownership model, cylinder deposit rules, transport regulations, delivery route, minimum order quantity and whether the buyer needs cylinders, bundles, liquid supply or bulk installation. For export inquiries, availability also depends on hazardous-goods transport requirements, returnable-cylinder feasibility, destination rules and whether equivalent local supply can be arranged through an approved gas partner.
Common purchasing models
- Spot cylinder supply for small-volume users
- Regular cylinder or bundle exchange for packaging plants
- Microbulk or liquid supply for medium-volume users
- Bulk tank supply for high-volume continuous operations
- Food gas blend supply where oxygen is part of a controlled MAP mixture
Cost drivers
- Gas purity and documentation level
- Cylinder size, valve type and deposit conditions
- Delivery distance and hazardous-goods transport route
- Monthly volume and forecast stability
- Need for gas blending, analyzer support or technical service
Regulatory and labeling review
Food additive and packaging-gas rules vary by destination market. Oxygen may be referenced as Oxygen, O2, E948 or INS 948 depending on local labeling practice and regulatory framework. The buyer should verify permitted use in the target food category, ingredient declaration wording, protective-atmosphere labeling, import documentation and any customer-specific quality standard before commercial launch.
How Global Food Additives can support
Global Food Additives, Inc. supports food manufacturers and distributors with practical sourcing coordination for food-grade gases and additives. For Oxygen E948, our team can help review the target specification, identify suitable supply options, collect supplier documents, clarify logistics constraints and coordinate quotation details for international buyers.
- Specification and documentation review before quotation
- Supplier comparison based on grade, availability, packaging and destination
- Coordination of food-grade declarations and technical documents
- Support for cylinder, bundle, liquid or bulk supply discussions
- Application-focused communication for MAP, beverage and process-gas users
How to request this product
Send the product name, target grade or reference specification, intended application, quantity, destination country, packaging preference, expected shipment date and required documents. If the product will be used in modified-atmosphere packaging, also include gas-mixture target, packaging format, product type, storage temperature, shelf-life target, line speed and residual oxygen requirement.
Useful answers
What is Oxygen E948 used for in food manufacturing?
Oxygen E948 is mainly reviewed as a food-grade packaging gas or process gas for modified-atmosphere packaging, controlled headspace design, fresh red meat color management, fresh produce respiration control and selected beverage or fermentation-related process needs. Exact suitability depends on the grade, application, pack design, process conditions, regulations and supplier documents.
Is oxygen always the right gas for MAP?
No. Oxygen can be useful in some applications, but it can also accelerate oxidation, rancidity, aroma loss, color change or microbial spoilage in other products. Many dry, fatty or aroma-sensitive foods are packaged with reduced oxygen, nitrogen flushing, carbon dioxide blends, barrier films or oxygen scavenging systems instead.
Why is oxygen used in some fresh meat packs?
Fresh red meat may use oxygen-containing atmospheres to support the bright red oxymyoglobin color expected by consumers. The final gas mixture, carbon dioxide level, pack format, refrigeration and shelf-life validation should be selected by the meat processor and packaging specialist.
What should be checked for fresh produce packaging?
For produce, oxygen must be balanced with carbon dioxide, temperature, film permeability and product respiration rate. Too much oxygen may accelerate respiration; too little oxygen may lead to anaerobic metabolism, off-odors, texture loss or package swelling.
Which documents should be requested?
Buyers commonly request a product specification, certificate of analysis or fill certificate, safety data sheet, food-grade declaration, origin or filling-site information, transport documents, cylinder details and market-specific declarations required by the destination country or customer audit standard.
Is Oxygen E948 permitted in every country?
No. Food additive and packaging-gas use depends on destination-market rules, food category, label wording, customer requirements and buyer responsibility. Always confirm local compliance before import, production or label approval.
Can Global Food Additives source Oxygen E948?
Global Food Additives can review sourcing options for Oxygen E948 according to target specification, required purity, quantity, destination, supply form, delivery term and documentation requirements. Availability and final offer depend on supplier confirmation and logistics feasibility.
What makes a quotation faster?
A complete inquiry should include grade, purity or specification, application, monthly volume, cylinder or bulk preference, destination, delivery term, valve requirement, gas-mixture ratio if applicable and required documents. Existing supplier certificates or labels are also helpful for comparison.
Tell us which food-grade gas or additive you need.
Send product names, target specifications, quantity, destination country, packaging preference, delivery term, application details and document requirements. For Oxygen E948, please include intended use, supply form, cylinder or bulk preference, required purity and any MAP gas-mixture target. Our team will review your inquiry and respond from orders@foodgradeadditives.com.
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