I once lost track of a coworker at a coffee shop and eventually found her sitting on the floor under the bar spraying a tank of whipped cream into her mouth. It had been a long day.
Typically nitrous oxide gas is used to whip cream, not compressed air. Compressed does work, apparantely, but produces an inferior whip with a less stable texture.
> ”The only real cream in an aerosol can Ive ever seen was in Canada”
Aerosol cream (“squirty cream”) is a fairly common product in most countries, in my experience. Usually sweetened with some additives and nitrous oxide propellant, but mostly made from real cream.
Is that really a thing? I can only speak for here in the US, but all the normal whipped-cream-in-a-can I've seen has cream as the first ingredient. Even Reddi-wip.