identifying tinted or coated bottles

[suzanne]

Thank you Antique Meds. Safety first.

 

[JarDoctor]

Hydrofluoric acid can kill you. That is why it has been stopped in the UK where it used to be the popular way to clean bottles (and etch them). If any of you remember, this used to be done in the US and there are many bottles still around that were cleaned with acid and look it.
Bad idea and for coating bottles - also bad idea. They look good for awhile, but, eventually they don't and also leads to people being scammed.

 

[suzanne]

That's right! So don't try to use it to get high.