People put drinks in the refrigerator when it is cold outside for a few different reasons:
Consistency: Some people prefer their drinks to be consistently cold regardless of the weather. By storing them in the refrigerator, they ensure that their beverages are always at the desired temperature when they're ready to drink them.
Convenience: Refrigerators offer a designated space to keep drinks cool and easily accessible. It's more convenient to grab a cold drink from the fridge rather than having to wait for it to chill or find a suitable outdoor spot to keep them cold.
Preservation: While it's true that the outside temperature is cold, it may not be consistently cold enough to keep the beverages at the optimal temperature. Placing drinks in the refrigerator helps maintain a constant, controlled temperature, preserving the taste and quality of the drinks.
Preventing freezing: In some climates, temperatures can fluctuate, and drinks left outside might freeze when it gets extremely cold. Refrigerators maintain a stable temperature above freezing, preventing drinks from becoming solid blocks of ice.
As for whether you have to refrigerate drinks until they are opened, it depends on the type of drink and personal preference. Some beverages, like soda or juice, often have preservatives that allow them to be stored at room temperature until opened. However, refrigerating them can enhance the taste and refreshment. Other drinks, like dairy-based products or some natural fruit juices, require refrigeration at all times to prevent spoilage.
In general, it's a good idea to check the label or manufacturer's recommendations on beverage storage. If the label states "Refrigerate after opening," then it's essential to keep the drink in the refrigerator once the seal is broken to maintain its freshness and prevent bacterial growth.