There are some things like pressure cookers exploding that are just "known", despite them not really being true. Ford cars are less made in America than Japanese brands; an electric blanket won't burn your house down; no one is hiding metal pins in Halloween candy to hurt children.

"Urban legend" describes these sort of thing, but how do you even begin to fight them with marketing in some form.

If Mr Qin had wanted to do marketing at the beginning, some segment of the market is going tune out the instant pressure cooker is mentioned.