What should be avoided with multi-layered cardboard containers used for packaging?

Multi-layered cardboard containers are designed to provide structural stability and protection for the contents within. However, exposure to water can significantly compromise the integrity of these containers. When cardboard gets wet, it loses its strength and rigidity, making it susceptible to collapsing or deforming. This can result in damage to the goods inside, as well as create hazards such as spills or contamination, especially if the contents are sensitive or hazardous materials. Proper handling and storage practices are crucial to ensure the cardboard remains dry, safeguarding both the packaging and its contents during transportation and storage.

Factors like excessive heating and being crushed, while potentially problematic in different contexts, do not inherently alter the core characteristics of the cardboard as drastically as exposure to water does. High altitude storage might influence the cardboard's performance due to pressure changes, but it is less critical compared to moisture exposure.