I agree with most others that it is difficult to determine the shelf
life of RI fluid but believe we can assume it will go bad in time.
This depends on lots of things...temperature, amount of light
subjected to, how often the lid is removed, how quickly it is
One thing I know for sure.....it can weaken of change its
characteristics and it can also crystalize. Had a bottle not too long
ago that was only a few months old but it had crystalized and became
useless. Talked with the Cargille people and they advised it was
At least, keep it in a cool dark place and when used, immediately
replace the lid firmly. That should prolong its usefulness.
Cheers from Don at The Charles Belle Studio in SOFL where simple
elegance IS fine jewelry! @coralnut2