These are whipped-cream chargers, steel cylinders filled with nitrous oxide,
used as a whipping agent in whipped cream dispensers.
What are cream chargers used for?
A whipped cream charger is a steel cylinder or cartridge filled with nitrous oxide (N2O) and used in a whipped cream dispenser as a whipping agent.
Nitrous oxide canisters have a foil covering on the narrow end that must be broken to release the gas.
