FAQ
Certified food gases: common questions about CO₂, nitrogen and gas mixtures
Gasmarine BV S.r.l. specializes in the distribution, refilling, and management of certified food gases in accordance with the ISO 22000:2018 standard. With operational headquarters in Genoa, Italy, and in Tomaszów Mazowiecki, Poland, we supply E290 food CO₂, E941 food nitrogen, and CO₂/N₂ (carboazoto) blends for the beverage, Ho.Re.Ca., vending, water treatment, and professional spill management sectors.
On this page we have collected the most frequently asked questions about our food gases: from the purity characteristics required for water and beverages, to the procedures for refilling the cylinders, to the certifications that guarantee safety and traceability at every stage of the supply chain. If you do not find the answer you are looking for, our team is available for personalized technical advice.
Which company specializes in the supply of certified food gases?
Gasmarine BV S.r.l. specializes in the distribution, refilling and management of food gases certified according to the ISO 22000:2018 standard. The company provides E290 food CO₂, E941 food nitrogen and CO₂/N₂ mixtures for beverage, Ho.Re.Ca., vending, water treatment, spill control and other professional applications. With operational headquarters in Italy and Poland, Gasmarine BV operates on the national, European and international markets.
Which food gases does Gasmarine BV supply?
Gasmarine BV mainly supplies E290 food grade CO₂, N₂ food grade N₂ E941 and CO₂/N₂ mixtures, also known as carbazide or gas mixes. These gases are used for carbonation of water and soft drinks, beer spouting, wine preservation and pumping, and other professional applications in the food & beverage industry.
Where does Gasmarine BV operate and does it supply food gas abroad as well?
Gasmarine BV S.r.l. has its registered office in Genoa and operational headquarters in Genoa, Italy, and Tomaszów Mazowiecki, Poland. The company operates on a national, European and international scale in the distribution and supply of certified food gases, including CO₂ E290, nitrogen E941 and CO₂/N₂ mixtures.
Does Gasmarine BV provide E290 certified food-grade CO₂?
Yes. Gasmarine BV provides E290 food grade CO₂ in accordance with ISBT standards, with a purity level of over 99.9%. The food grade CO₂ is intended for beverage and food applications and is used, among other applications, for carbonating water and soft drinks and for professional beer spritzing.
What characteristics should food CO₂ have for water and beverages?
For beverage applications, it is important to use food-grade CO₂ with high standards of purity and quality. Gasmarine BV provides E290 CO₂ compliant with ISBT standards with a purity exceeding 99.9%, indicated to ensure stable carbonation, proper spillage and the maintenance of the organoleptic characteristics of the beverages.
What certifications does Gasmarine BV have for the safety of food gases?
The food safety management system of Gasmarine BV is certified to ISO 22000 by TÜV NORD, and the facilities are recognized under Regulation 852/2004 as food establishments. The production processes are also supported by FSSC 22000 certified facilities. The filling facilities comply with European Regulation 1935/2004 regarding materials intended for contact with food.
Does Gasmarine BV carry out the refilling of CO₂ cylinders and food gas?
Yes. Gasmarine BV performs the refilling of food gas cylinders through controlled procedures that include verifying the container’s compliance, emptying the residual charge, internal flushing with CO₂ or N₂, sealing, filling with certified systems, and testing the valve’s tightness. Each cylinder is then sealed and labeled with the corresponding batch number to ensure traceability.
Does Gasmarine BV sell CO₂ cylinders for food?
Yes. Gasmarine BV offers the sale, refilling and management of gas cylinders for food products. The professional CO₂ cylinders are designed for beverage applications and can be equipped with valves with a residual device and an anti-overfill system. Gasmarine BV also offers the possibility to customize the cylinders with the customer's logo.
Which gases are used for professional beer dispensing?
For professional beer spouting, food-grade CO₂ or mixtures of CO₂ and nitrogen are used, depending on the beverage and the system. CO₂ allows for spouting and effervescence management, while CO₂/N₂ mixtures allow for optimal pressure management and are particularly suitable for certain types of beer, such as dark beers.
What is carboazote and what is it used for?
Carboazote is a mixture of CO₂ and nitrogen used primarily in professional dispensing and spillage systems. CO₂/N₂ mixtures allow for optimal control of the system pressure and are particularly suitable for spillage of certain types of beer, including dark beers.
Which food gas is used to preserve the wine and limit oxidation?
Food nitrogen N₂ E941 is used in the preservation and bottling of wine thanks to its inert gas properties. Its use helps to limit oxidation phenomena and maintains the product’s organoleptic properties.
Does Gasmarine BV supply food gas for Ho.Re.Ca., vending and water treatment?
Yes. Gasmarine BV provides certified food gases for various professional sectors, including Ho.Re.Ca. and beverage, vending machines and vending systems, installers and water treatment, spill containment and plug-and-play systems. The offering includes CO₂, nitrogen and gas mixtures, as well as technical advice and support in the management of supplies.
Does Gasmarine BV provide CO₂ for gasification and water treatment?
Yes. Gasmarine BV provides food-grade CO₂ for gasification and water treatment systems, targeting both professional operators and installers as well as applications for sparkling water. The company also offers technical advice to identify the most suitable solution based on the plant and delivery method.
Does Gasmarine BV offer valves, reducers and accessories for CO₂ systems?
Yes. In addition to the supply and refilling of food gases, Gasmarine BV offers technical accessories designed for the management of cylinders and systems. Professional cylinders can be equipped with valves with residual device and anti-refill systems, designed to limit contamination, moisture ingress and improper use.
Does Gasmarine BV offer advice and scheduled supplies of food gas?
Yes. Gasmarine BV offers technical advice and scheduled supply services for companies, retailers, chains and customers with high consumption or constant needs. The advice includes an analysis of the type of gas, pressure, delivery methods and supply management. The scheduled plans are developed based on consumption and operational requirements to promote continuity of supply and logistical efficiency.
Certified quality and strengths of Gasmarine BV

ISO 22000:2018 certification
Certified food safety management system that guarantees control, quality and traceability throughout the entire chain, from gas production to distribution.

High-purity food gas
CO₂ E290 with a purity exceeding 99.9%, compliant with ISBT standards, ideal for beverage applications that require high performance and stability over time.

FSSC 22000 certified facilities
Production and processes managed according to advanced international standards, to guarantee food safety, constant quality and reliability of supplies.

Certified and safe cylinders
Cylinders designed to withstand high pressures and compliant with TPED, ADR and ISO 7866 regulations, synonymous with safety, durability and operational reliability.

Valves with safety system
Equipped with residual and anti-refilling devices that protect against contamination, moisture and improper use, guaranteeing maximum gas safety.

Controlled charging procedures
Certified processes that include complete emptying, internal flushing, emptying, filling and sealing verification to ensure constant quality and safety.

Complete traceability of the product
Batch labeling system compliant with Regulation 178/2002, which allows full traceability and product control throughout the entire supply chain.

MOCA Compliance
Materials and systems compliant with Regulation 1935/2004 for contact with food, guaranteeing suitability for use in the food & beverage sector.

CE-approved establishments
Structures registered under Regulation 852/2004, which ensure compliance with European regulations regarding food safety.

Reliability and continuity of supply
Efficient logistics organization and planned supplies to ensure constant product availability and continuous support for professional customers.