I unpacked decorations from storage and they’re coated in a strange white film. What happened?

and physical changes.
Another factor is the type of material the decorations are made from. Plastics, metals, and certain fabrics can react differently to storage conditions, leading to a white residue. Understanding the interaction between these materials and their environment is key to preventing the mysterious film from forming.
2. How Humidity in Storage Creates a Chalky or Powdery Residue
Humidity is a major culprit when it comes to a chalky or powdery residue on stored items. When the relative humidity in a storage space exceeds 60%, it creates an