Coffee beans do not suddenly go bad in one day, but they do lose freshness step by step. The moment roasted beans are exposed to air, light, heat, and moisture, their aroma begins to fade. That is why storage matters so much. If the beans are kept in an airtight container, they usually stay fresher for longer and hold their flavor better than beans left in an open bag or a loosely closed jar.
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2026-03-17