How can I get dried-on residue out of a clear glass bottle? Its thick like toothpaste?

And I can't reach it with a qtip, bottle brush-anything. I've let it soak for days with hot water, hydrogen peroxide and it won't budge. Any ideas?How can I get dried-on residue out of a clear glass bottle? Its thick like toothpaste?
Water isn't going to do it, in fact water might be the problem. I have hard water so I have the same problem. Use CLR it is a calcium, lime, and rust remover.How can I get dried-on residue out of a clear glass bottle? Its thick like toothpaste?
let bleach and vinegar soak in it for three days and then place it in a dishwasher. If it still has problems try dissolving aspirin in it. Then try the vinegar and bleach again. I clean antique bottles. Sometimes you can not make them ';clear';.
Try denture cleaner,or CLR (calcium lime remover)
Try with HCL acid.


it should dissolve and it can be washed out.


Bottles are not costly. they can be thrown out ?
Try using Alka Selzter tablets or denture cleaning tablets and then follow with coarse salt and water. Shake the salt and water a LOT and it just may do the trick...
You could put mild to hot water (not to hot the bottle will explode if sealed and shaken or burn you hands) in the bottle with a drop of washing detergent and a teaspoon of dried rice and shake vigouriously do this and the rice acts as a abbrasive and removes build up.





You may need to do this a few times you could also use vinegar or soda water as they are both mild abbrasives, once clear wash the bottle in hot soapy water and rinse with vinegar and clean water makes it sparkle.





Good luck!
Use vinegar. Just a tablespoon or so should do it. Swish it around and then rinse with water. I use it all the time on things like the drain plug in the bathroom sink or a nasty vase after the flowers have died. It works wonders really easily!
There are a few things you can use.I Would start with white vinegar, let it sit for a day and then try shaking the bottle to loosen it. Or you can try rubbing alcohol. and see if that loosens it. It would be helpful if you could identfy what was in the bottle, that left this residue.
boil it as you would a baby bottle. put some bleach and dish soap in it.