Your dishwasher needs hot water—like, 120°F (49°C) minimum. If your water heater is set lower, or you’re running a cold cycle (you rebel), the detergent won’t dissolve fully. Undissolved powder is a direct ticket to Residue Town.
Check your inlet valve, too. If it’s clogged with mineral scale (ironic, right?), the water flow weakens, and your rinse becomes a sad drizzle. A quick soak of the filter in vinegar every month can save your sanity—I swear by it.
The Overcrowding Conspiracy
Are you cramming dishes in like a game of Tetris? Blocked spray arms mean some plates get a gentle mist while others get a scalding, soapy bath. That uneven coverage lets residue cling to hidden corners, especially on curved bowls and lids.
Why Do I Have Water Spots On My Dishes at Wayne Morgan blog
Space them out, and angle everything downward so water drains. Trust me: your wine glasses will stop looking like they’ve been licked by a sandpaper ghost.
