What type of containers are recommended for effective cooling?

Metal containers are recommended for effective cooling primarily due to their high thermal conductivity, which allows them to transfer heat away from their contents more rapidly than other materials. This property helps facilitate faster cooling of food items, reducing the time they remain in the temperature danger zone where bacteria can thrive. Additionally, metal containers are generally easier to clean and are durable, which further supports food safety practices.

In contrast, plastic containers, while lightweight and convenient, tend to insulate heat rather than conduct it, potentially leading to slower cooling. Glass containers, though they provide an effective barrier against contaminants and allow for easy monitoring of contents, can also foster slower cooling due to their lesser thermal conductivity compared to metal. Wooden containers are not ideal for cooling because they can absorb moisture and are challenging to clean, which can lead to the growth of bacteria rather than promoting safe cooling practices.