My thermometer is stuck!

[JP Atsma]

No it's probably not what you think :-)

I've got two thermometers and haven't used them for a while, but now the red bar has split. I've tried a lot of suggestions I found online, but some of the red liquid inside is still stuck at the top, so it never shows the correct temperature.

I don't want to just throw them away if there is a simple trick to get them working again, but perhaps they are FUBAR now.

Any suggestions are welcome.

 

[Bigcol49]

Hi!
It's called a separated column. Try this (from 1.00 min):

 

[JP Atsma]

Brilliant, thanks! I'll try the boiling method first.