CO₂ & nitrogen

Fizz gets used up, whether it’s CO₂ for soda and beer or nitrogen for a nitro pour. Here clean means beverage-grade. Each option is priced per glass or per pint, so you can compare a cylinder swap with a big tank.

Our picks

• SodaStream 60 L CO₂ Cylinder (exchange)

  Food grade

  $15 · 60 L cylinder exchangeShop SodaStream 60 L CO₂ Cylinder (exchange) on Amazon

  Beverage-grade CO₂ in the cylinder a SodaStream takes. You swap the empty one at a store instead of refilling it, and you don’t need an adapter.

  Rated 60 L, but at a fizzier setting expect closer to 40 L, or about 20¢ a glass. Pink Quick Connect fits Terra/Art/E-Terra; blue screw-in fits older machines, Aarke and Drinkmate.

  • Soda $0.12/glass
• 5 lb CO₂ Refill (beverage-grade, CGA320 tank)

  Food grade

  $22 · 5 lb fill (tank sold separately, ~$75)Shop the 5 lb tank on Amazon

  Beverage-grade CO₂ by the pound for soda and kegged beer. Once you own the tank (sold separately), it’s the cheapest gas per glass on this page.

  • Soda $0.03/glass
  • Beer $0.08/pint
• N₂ Nitrogen Chargers, 2 g (10-pack)

  Food grade

  $17 · 10 × 2 g chargersShop N₂ Nitrogen Chargers, 2 g (10-pack) on Amazon

  Food-grade nitrogen (E941), which is a different gas from the N₂O in cream chargers. Use one charger per litre of cold brew for the cascading pour.

  • Cold brew $0.85/glass

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Run the numbers

• Soda & Sparkling
• Homebrew Beer
• Cold Brew & Nitro

Certifications and ingredient lists are the manufacturers' label claims as we last checked them, not our own testing. They change, so read the current label, especially for allergens. Cost information only; nothing here is nutrition or medical advice. Full terms & disclaimers →