08/11/2026
38 years restoring glass, and the #1 question I get is still: "Why won't vinegar clean my cloudy vase?"
If you have a cloudy piece of glass or crystal that vinegar won't touch, stop soaking it. You're likely dealing with two completely different issues:
🔹 Hard Water Scale (Additive): Mineral deposits sitting ON top of the glass. It feels rough or chalky. Vinegar is only 5% acetic acid—heavy scale needs something strong like CRL Water Spot Remover (note: not standard household CLR) to dissolve it in minutes.
🔹 Permanent Dishwasher Etching (Subtractive): Microscopic pitting INSIDE the surface caused by harsh detergents. It feels completely smooth to the touch. No liquid cleaner can fix this because there's nothing on the surface to dissolve—you have to micro-polish it out using Cerium Oxide slurry on a felt pad.
Before assuming a cloudy piece is ruined, run your fingernail over the surface to see which issue you have!
📖 Read the full diagnostic guide with my step-by-step photos here: https://medium.com//how-to-fix-cloudy-crystal-stop-wasting-time-on-vinegar-89d684f0a736?sk=557073dbd748d61b4bc0c0819f4cdc6e
What's the stubbornest piece of cloudy glass in your collection right now? Drop a photo in the comments and I'll help you diagnose it!