In many cases, those dates are meant to guide stores and consumers on freshness, taste, and best texture. Food usually changes gradually, not instantly, and often gives clear signs when it is truly no longer good.
That is why your own senses still matter. Smell, color, texture, and taste can often tell you more than the printed date alone, especially for foods that have been stored properly and remain unopened.
Learning to rely on both good storage habits and common sense can help reduce waste, save money, and make people feel more confident in their kitchens. Instead of throwing food away automatically, it becomes easier to judge it more calmly and practically.