Whipped-cream charger
Encyclopedia
A whipped cream charger (also called whippits, whippets, nossies, or nangs) is a steel cylinder or cartridge filled with nitrous oxide
Nitrous oxide
Nitrous oxide, commonly known as laughing gas or sweet air, is a chemical compound with the formula . It is an oxide of nitrogen. At room temperature, it is a colorless non-flammable gas, with a slightly sweet odor and taste. It is used in surgery and dentistry for its anesthetic and analgesic...

 (N2O) that is used as a whipping agent in a whipped cream
Whipped cream
Whipped cream is cream that has been beaten by a mixer, whisk, or fork until it is light and fluffy. Whipped cream is often sweetened and sometimes flavored with vanilla, in which case it may be called Chantilly cream or crème Chantilly ....

 dispenser. The nitrous oxide in whipped cream chargers is also used by recreational drug users as an inhalant
Inhalant
Inhalants are a broad range of drugs whose volatile vapors are taken in via the nose and trachea. They are taken by volatilization, and do not include drugs that are inhaled after burning or heating...

 for its psychoactive effects. Chargers are also used as a cheap source of nitrous oxide for small, powerful model rocket
Model rocket
A model rocket is a small rocket that is commonly advertised as being able to be launched by anybody, to, in general, low altitudes and recovered by a variety of means....

s.

Description

The cylinders are about 6.3 cm (2.5 inches) long and 1.8 cm (0.7 inches) wide, and they are rounded at one end with a narrow tip at the other end. The chargers' walls are about 2 mm (about 1/16 inch) thick to withstand the great pressure of the gas contained within. Their interior volume is 10 cm3 and most brands contain 8 g
Gram
The gram is a metric system unit of mass....

 of N2O under pressure. Used chargers are non-refillable but 100% recyclable, where steel recycling programs exist.

Culinary use

Nitrous oxide is used because it migrates easily into the cream, and does not cause the cream to oxidize while it is in the can.
Cream must have a minimum fat content of 28% to produce whipped cream with a dispenser. To use a whipped cream dispenser, one starts by following a recipe — typically 1 cup of heavy cream, 2-3 tablespoons of sugar
Sugar
Sugar is a class of edible crystalline carbohydrates, mainly sucrose, lactose, and fructose, characterized by a sweet flavor.Sucrose in its refined form primarily comes from sugar cane and sugar beet...

, and any flavorings/colorings as desired. The device is capped and one or two chargers are discharged into the unit, depending on its size. These pressurize the device with nitrous oxide and cause the fat-soluble gas to dissolve into the cream, just like carbon dioxide dissolves into water to create soda water. Shaking the dispenser a few times helps the gas dissolve. The dispenser is then ready for use.

When the cream dispenser's valve is opened, the cream is forced out of the nozzle by the high pressure. However, when the pressure is released, the dissolved gas turns to bubbles and comes out of the solution — just like how opening a soda bottle results in the formation of a head of bubbles. These expanding bubbles instantly transform the cream into a frothy, whipped state. Nitrous oxide is bacteriostatic (prevents bacteria from growing) and a charged cream dispenser can be kept in the refrigerator for up to 2 weeks.

In Europe, where production and use of whip cream chargers originated, there are presently 3 factories doing production. Standard size for whip cream chargers is 8 grams of nitrous oxide per cartridge. European name brand chargers are considered to be the best quality N2O whip cream chargers, due to their strictly controlled manufacturing procedures and repeated cleanings during manufacture (to prevent toxic machining oils from remaining in the charger). Recently some production has begun in China however the quality aspect is not proven. The European Community has very strict and enforceable laws for production of consumable goods.

Whipped cream chargers are intended for low-volume or occasional use, such as home kitchens, restaurants, and coffee shop applications. For very high volume commercial use, there do exist regulated tank systems for filling much larger containers and dispensing more whipped cream. These are more desirable if volume is in excess of a production level of 10 liters per hour. Whipped cream chargers are designed to be opened with a device that punctures the thin metal seal at the narrow end of the tube; whipped cream dispensers have this integrated into the device's cap.

Use in model rocketry

Whipped cream chargers are also used by model rocket enthusiasts for so-called micro hybrid engines
Hybrid rocket
A hybrid rocket is a rocket with a rocket motor which uses propellants in two different states of matter - one solid and the other either gas or liquid. The Hybrid rocket concept can be traced back at least 75 years....

, where it acts as an oxidizer for solid fuels such as polyethylene
Polyethylene
Polyethylene or polythene is the most widely used plastic, with an annual production of approximately 80 million metric tons...

 or HTPB.

External links

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