Nitrous oxide is the gas that turns liquid cream into thick, pipeable whipped cream in about two seconds. In the kitchen it goes by a few names — laughing gas, N2O, or just “nangs” when it comes in an 8-gram charger. This guide covers what it actually is, how it gets used, whether you can legally buy it in Australia, and how to handle it without hurting yourself.
What is nitrous oxide?
Nitrous oxide (chemical formula N2O) is a colourless gas with a faintly sweet smell, made of two nitrogen atoms bonded to one oxygen atom. At room temperature it’s a gas, but under pressure inside a cream charger or cylinder it sits as a liquid. That’s why a small canister can hold enough to whip several litres of cream.
Release it into a dispenser and the gas dissolves into the fat in the cream. Squeeze the lever, the pressure drops, the gas expands, and the cream comes out aerated and holding its shape. That pressure change is the entire trick behind a whipped cream siphon.
What is nitrous oxide used for?
Most people run into nitrous oxide in one of three places. In the kitchen it whips cream, builds foams and espumas, carbonates fruit, and infuses spirits or oils in minutes instead of days — that’s the food-grade use we supply. In dentistry and hospitals, a controlled nitrous-oxygen mix is used as a mild analgesic. In motorsport, industrial-grade N2O is injected to boost engine power.
The gas molecule is identical across all three, but the grade and purity are not — and that difference matters more than most people realise.
Food-grade vs industrial nitrous oxide
Food-grade nitrous oxide is filtered and tested to a purity standard suitable for contact with food. Industrial and automotive N2O often has additives (automotive nitrous is sometimes dosed with sulfur compounds to deter misuse) and isn’t produced under food-safe conditions. Anything going near cream you plan to eat should be food-grade, full stop.
Every brand we carry — Skywhip Pro Max, Miami Magic, Ignite and Supremewhip — is food-grade. If you want the full brand-by-brand breakdown, we compared them in our guide to the best cream chargers in Australia.
How nitrous oxide works in the kitchen
You need three things: cream (or the liquid you’re aerating), a whipped cream dispenser, and a charger or tank of N2O. Load the cream, charge the dispenser, shake, and dispense. A single 8g charger handles about 500ml of cream; a 3.3L tank does the work of dozens of chargers, which is why cafés and regular users move to tanks.
If you’re new to it, start with our walkthrough on choosing a whipped cream dispenser and our cost breakdown of how many charges you get in a nang tank.
Is nitrous oxide legal in Australia?
Yes — nitrous oxide is legal to sell and buy for legitimate culinary use, but supply is regulated. Across most states and territories it’s an offence to sell N2O to anyone under 18, and several states restrict late-night retail sale and require that it’s sold for a genuine purpose. Deliberately inhaling it is a separate matter and carries real health and legal risk.
The rules differ by state, so we broke them down properly in Are nangs illegal in Australia? If you only read one section before buying, read that one.
Handling nitrous oxide safely
Two practical hazards come up with food-grade N2O in a kitchen. The first is cold: the gas gets extremely cold as it expands, so a charger or tank valve can cause frostbite on bare skin. Handle tanks by the body, not the valve, and don’t hold a discharging charger against your skin. The second is pressure: store cylinders upright, away from heat and direct sun, and never pierce or heat a canister. Used correctly with a proper dispenser, it’s a safe kitchen tool — our cream charger safety guide goes through the full checklist.
Where to buy food-grade nitrous oxide in Melbourne
We deliver food-grade N2O across Melbourne — 8g cream chargers for home kitchens and larger nitrous oxide cylinders for anyone getting through more. Delivery runs late: midnight on Monday to Wednesday, and until 5am Thursday to Sunday, with most CBD drops in 10 to 15 minutes.
Frequently asked questions
Is nitrous oxide the same as laughing gas?
Yes. “Laughing gas” is the common name for the same N2O molecule; the difference is grade and purpose. What we supply is food-grade, for culinary use.
How much cream does one charger of nitrous oxide whip?
Roughly 500ml per 8g charger. A 3.3L tank replaces dozens of chargers — see our charges-per-tank guide for the exact maths.
Do you need to be 18 to buy nitrous oxide?
Yes. We sell to over-18s only and may ask for ID on delivery, in line with state law.
