Putting metal objects in the freezer is generally safe and does not cause damage to your appliance or make food unsafe from bacterial growth. Freezing food is a common method of preservation, and the low temperatures of the freezer inhibit the growth of bacteria.
However, there are a few considerations to keep in mind:
Freezer-safe materials: Make sure the metal objects you are placing in the freezer are made of freezer-safe materials. Most common metals, such as stainless steel, aluminum, and copper, are safe to use in the freezer. Avoid using metals that may corrode or react with the cold temperatures, such as non-food-grade metals or metals prone to rust.
Proper packaging: If you're placing metal objects directly in contact with food, ensure they are clean and not made of reactive metals that may contaminate the food. It's advisable to wrap or package the food securely to prevent any direct contact with the metal.
Freezer organization: When placing metal objects in the freezer, consider their size and shape to ensure they don't disrupt the airflow or cooling within the appliance. It's important to maintain proper air circulation for efficient freezing and to prevent temperature fluctuations.
Sharp edges: Be cautious with sharp-edged metal objects to avoid puncturing or damaging packaging materials, which could lead to freezer burn or spoilage.
In summary, as long as the metal objects are freezer-safe and don't contaminate the food, placing them in the freezer should not cause harm to your appliance or compromise food safety.