Researchers detail how snack sound and rapid dissolution shape perceived freshness and fullness, underscoring why certain packaged foods are easy to overeat. Oxford professor Charles Spence’s Pringles experiment showed that louder crunch audio led participants to rate identical chips as fresher and crispier. Food scientist Steven Witherly described vanishing caloric density, a food engineering tactic where puffed snacks dissolve quickly, obscuring intake signals. The video outlines how manufacturers design louder, crisper textures that align with learned links between noise and freshness. It also explains how disappearing mouthfeel can separate satiety cues from actual calories. Scope is limited to the studies and explanations cited.
