Without electricity, a fridge can keep food fresh for a limited amount of time. The duration depends on various factors, such as the outside temperature, the type of food, and how well the fridge is insulated. Generally, a fully stocked refrigerator can maintain safe temperatures for about 4-6 hours if left unopened.
To extend this timeframe, you can take certain precautions. For instance, keeping the fridge closed as much as possible will help retain the cold air inside. Placing ice packs or bags of ice in the unit can also help maintain lower temperatures for longer periods. Additionally, moving perishable items to a cooler or an insulated box with ice packs could further prolong their freshness.
However, it is crucial to note that these measures are temporary solutions and should not replace proper refrigeration in the long term. If prolonged power outages are expected or if you need to store perishable items for an extended period without electricity, it is advisable to consider alternative options, such as using a generator or transferring the food to a cool basement or cellar.