Condensation that forms on the inside of storage containers is caused by water vapor in the air that is trapped within the container when it is sealed. ... When a container is placed in a refrigerator, it begins to cool from the outside to the interior, making the inside surface of the container the coldest surface.
Condensation and excess moisture can propagate damp and mould growth. Both of these can impact your health and damage your home. Excess moisture can also penetrate your walls and wall cavities causing interstitial condensation which damages the structure of your home. Damp homes also feel cooler.
Use Desiccants To Absorb Ambient Moisture