That works as long as you're sure your foods are utterly harmless.

Other people who ignore that sort of thing may introduce pests or diseases. (I vaguely recall reading about a beetle being introduced into the South Pacific island of Niue, probably in a shipment of lumber, that had not been treated properly as was required - i.e. the people who introduced the lumber also lied on some form or other.)

I don't know what would work better, though, either.