That’s not a one-time thing—it’s a chemical reaction. Over time, it leads to corrosion and pitting.
Even if it says “dishwasher safe,” it’s often a technical truth, not a practical one.
Copper cookware and mugs
Copper is beautiful. That warm glow? Hard to beat.
But dishwasher detergent doesn’t care about aesthetics. It dulls the finish almost immediately and can cause permanent damage.
That Moscow Mule mug deserves a gentle hand wash, not a chemical assault.
Pressure cooker lids
Here’s where things get a bit more serious.
Pressure cooker lids have valves and seals that control pressure. Dishwasher cycles can trap food particles inside those tiny mechanisms.
Best case? It doesn’t work properly.
Worst case? It becomes unsafe.
Not worth the risk.
“But It Says Dishwasher Safe…” (Proceed Carefully)
