Yes, you can put an unrefrigerated container in the refrigerator. In fact, it is advisable to do so for certain types of foods or leftovers.
When you place an unrefrigerated container in the refrigerator, the cold temperature of the fridge will help rapidly lower the temperature of the food inside, inhibiting the growth of bacteria and reducing the risk of food spoilage.
However, there are some important guidelines to follow when refrigerating unrefrigerated containers:
Temperature: Make sure your refrigerator is set to the proper temperature, ideally below 40°F (4°C). A lower temperature helps ensure that food remains safe for consumption and minimizes bacterial growth.
Time Limit: Refrigerate the unrefrigerated container as soon as possible, especially if it contains perishable items like meat, dairy products, or cooked foods. Leaving food out at room temperature for too long can allow harmful bacteria to multiply, making the food unsafe to eat.
Shallow Containers: When refrigerating leftovers, transfer them to shallow containers. This allows the food to cool faster, reducing the time it spends in the "danger zone" (40°F to 140°F or 4°C to 60°C), where bacteria can grow rapidly.
Covering: Cover the container before placing it in the refrigerator. This helps prevent any potential cross-contamination with other foods and keeps the food from absorbing odors from the fridge.
Precautions: If the food has been left out at room temperature for an extended period (e.g., more than two hours), it's best to discard it rather than refrigerate it.
Remember that while refrigeration can help preserve the quality and safety of food, it does have its limits. Foods that are already spoiled or contaminated before refrigeration won't be safe to eat simply because they are placed in the fridge. Always use your best judgment, follow food safety guidelines, and when in doubt, discard any food that you suspect might be unsafe.