The best way to store coffee beans is in an airtight, opaque container kept in a cool, dark, dry place, away from air, light, heat, and moisture, the four things that make coffee go stale. Whole beans keep their flavor longer than ground coffee.
Keep beans in an airtight container that blocks light, and put it somewhere cool and dark like a pantry or cupboard, away from the stove and out of direct sun. Buying whole beans and grinding just before brewing keeps the flavor fresher, since ground coffee stales faster.
Air, light, heat, and moisture all degrade coffee. Oxygen oxidizes the oils and aromas, light and heat speed up the breakdown, and moisture is especially damaging, which is why an airtight, opaque container in a stable, cool spot works best.
The fridge is a poor choice because coffee absorbs moisture and food odors and the temperature swings cause condensation. For long-term storage the freezer can work if beans are sealed in airtight portions and not repeatedly thawed, but for day-to-day use a cool pantry is better.
Whole beans stay fresh longer, because ground coffee has far more surface area exposed to air, so it loses aroma and goes stale faster.
It can work for long-term storage if the beans are sealed airtight and frozen in small portions you will not refreeze. For coffee you drink regularly, a cool, dark, airtight container out of the freezer is better.
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