Do Foods Really Taste Better the Next Day? A Blinded Sensory Study of Fresh and Day-Old Foods

The belief that some foods taste better the next day is widespread, but it remains unclear whether overnight storage and reheating produce perceptible sensory differences when explicit freshness information is removed. This study compared sensory responses to fresh and day-old versions of four commonly cited foods: beef lasagne, butter chicken, dhal and apple crumble. Day-old samples were prepared 24 h earlier, refrigerated, reheated and served alongside freshly prepared samples under blinded conditions. Sixty-five participants completed two sensory sessions involving samedifferent, paired preference and liking tests. Statistical analyses accounted for repeated responses within participants. Dhal, butter chicken and apple crumble were discriminated in the same-different analysis, whereas beef lasagne did not reach significance after correction for repeated participant responses. However, discrimination did not consistently translate into preference or liking. Butter chicken was the only food for which the day-old sample was statistically preferred. Liking ratings differed among food types, with apple crumble rated highest overall, but there was no evidence of fresh versus day-old liking differences within foods. These findings show that the next-day effect is modest, food-specific and dependent on the sensory outcome measured. The study contributes controlled sensory evidence to a common culinary belief by distinguishing perceptible difference, preference and hedonic liking across everyday food matrices.