Are floating objects in old unopened bottle of rum mean no longer drinkable?

Yes, floating objects in an old, unopened bottle of rum are a strong indication that it's no longer drinkable. Here's why:

* Evaporation and Oxidation: Over time, rum can evaporate, leaving behind a concentrated solution. This process also causes oxidation, which changes the flavor and aroma of the rum.

* Contamination: Floating objects are likely signs of microbial growth, which can occur in rum that has been exposed to air for too long. This can lead to unpleasant flavors, and potentially harmful bacteria.

What to do:

* Don't drink it. The rum is likely spoiled and could make you ill.

* Dispose of it properly. Do not pour it down the drain as it could damage your plumbing.

Important Note: If you have an unopened bottle of rum that is very old, it's best to consult with a liquor expert or knowledgeable person to assess its condition and whether it's safe to consume.