Ideas how to get hard water stains out of antique bottles?

They were outside for years before I found them. I've tried soaking them in CLR. I've also tried soaking them in vinegar water after washing them in the dishwasher. I've also tried a bottle brush. The shoulders of the bottle & some of the openings are shaped so I can't get a bottle brush to the affected areas even if the CLR would get it off. HELP!
  4 answers
  • Lorraine Lorraine on May 25, 2016
    Have you tried just filling the bottle to the top with warm vinegar and let it sit for a day to see if it would work?
    • Valerie Johnston Valerie Johnston on May 25, 2016
      @Lorraine I did Lorraine, and it didn't seem to help. I even tried to scrub what I could reach with a bottle brush while it was in there. Still shows a lot of staining. Thank you though:)
  • Janet Pizaro Janet Pizaro on May 25, 2016
    Try using a denture cleaner tablet mixed with water and allow to soak over night in the sink. Then use dawn dish soap.
  • Jean Myles Jean Myles on May 25, 2016
    Do they have lids ? Janet is right about using denture tablets Polident works better than other brands if they do have lids then turn the bottles over and let the mixture hang out for a couple of hours or or longer. If you can't get the water stains you could do some etching too the outside of the bottle to hide them. This is of course if they aren't valuable.
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    • Jean Myles Jean Myles on Jun 19, 2016
      Sorry it didn't work but you have some to clean your toiles LOL. Hope you find something that works, Good luck
  • Linda Santo Linda Santo on May 27, 2016
    I removed all the stains off my vintage glass insulators by soaking them in wood bleach (oxalic acid). Did an amazing job. Google cleaning insulators for instructions. It's the same stuff that's in Bar Keepers friend but stronger. I left a couple soaking over the winter by mistake and not any damage to the glass.
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    • Oldglass Stuff Oldglass Stuff on Jul 29, 2016
      Wood bleach (oxalic acid) is used to clean decks so Lowes or Home Depot might have it or can order it for you. Ebay is also an option. You will only need a small 1 lb container of the powder at most. This having been said, while I have cleaned 1000's of antique insulators and bottles with this stuff, I'm guessing it will not help in your case. The glass inside is probably etched and the only remedy for that is professional cleaning by "tumbling" the inside of the bottle with copper pellets and a polishing compound on a machine not unlike a rock tumbler. This is done for antique bottles, insulators, canning jars, etc. that are valuable enough to have it done. The service usually starts at about $20 per bottle, but it polishes them to a like-new shine. I doubt the bottles you have are worth the time and trouble to have this done so as a last resort if you are not planning on filling the bottles with anything to eat or drink you can spray the inside of the bottle with some Endust dusting spray and it will take away the hazy look for a few months at least before you have to do it again. Hope this helps.