It is generally not advisable to keep bagged or canned coffee in the refrigerator for regular, day-to-day storage. Coffee has specific storage requirements to maintain its quality and flavor, and refrigeration can introduce some issues that may impact its taste and aroma. Here's why:
Moisture Absorption: Coffee can absorb odors and moisture from the surrounding environment. When you place coffee in the refrigerator, it can absorb moisture from the refrigerator's atmosphere, leading to a loss of flavor and aroma.
Condensation: When you take coffee out of the refrigerator and expose it to warmer air, condensation can form on the coffee's surface. This moisture can affect the taste and freshness of the coffee.
Odor Contamination: The refrigerator is filled with various food items, and strong-smelling foods can transfer their odors to the coffee. This can lead to an unpleasant taste and aroma in your brewed coffee.
Instead of refrigeration, it is best to store bagged or canned coffee in a cool, dry place away from light and moisture. An airtight container or the original packaging with a good seal will help preserve the coffee's freshness.
If you live in a hot and humid climate, or you anticipate storing coffee for an extended period, it might be better to store it in the freezer. Freezing coffee can help extend its shelf life without introducing the same moisture and odor issues found in the refrigerator. However, it's essential to use an airtight container to prevent freezer burn and to allow the coffee to come to room temperature before brewing.
Remember that coffee is best when consumed relatively fresh, ideally within a few weeks of the roast date for whole beans or within a few weeks of opening pre-ground coffee. Proper storage helps retain the coffee's quality and ensures you enjoy a flavorful cup every time.