Material Sensitivity: The Cup is often made of various metals, including silver and nickel, which can tarnish or corrode in the dishwasher's harsh conditions.

Delicate Engravings: The Cup usually features intricate engravings, which may get damaged or fade due to the high water pressure and detergent.

Hand Wash Preferred: To preserve its integrity, it's best to hand wash the Stanley Cup using a mild detergent, warm water, and a soft cloth.

Avoid Harsh Chemicals: Dishwasher detergents can contain abrasive chemicals that may harm the Cup's surface, affecting its appearance over time.

Treat it with Care: Given its historical and sentimental value, taking the time to gently clean and care for the Stanley Cup ensures its longevity and continued shine.