Freezer frost itself is not harmful to ingest through food or drink. It is essentially ice crystals that form on the surface of frozen food or inside the freezer. While freezer frost may not be aesthetically pleasing and can affect the texture of the food, it is not considered dangerous or toxic.
However, consuming freezer frost-covered food or incorporating freezer frost into your drink might not provide an optimal eating or drinking experience. The frost can alter the taste and texture of the food or beverage, potentially making it less enjoyable.
To maintain the quality of your frozen food and beverages, it is generally recommended to minimize the formation of freezer frost. Proper packaging and sealing of food items can help prevent freezer burn and reduce the formation of frost. Additionally, regularly defrosting and cleaning your freezer can also help maintain its efficiency and reduce frost buildup.