I've been upgrading my soldering mojo lately and have collected an assortment of liquid fluxes.
The Kester 951 and Kester 186 datasheets state shelf lives (1 and 2 years respectively) when stored between 10-25°C (50-77°F).
I store my solder paste in the fridge, which is between 2-5°C (35-40°F).
Is the liquid soldering flux safe in there too? And would keeping it there extend its shelf life?
Also I guess I don't know how I could tell it had gone past its prime. What would be the signs it had "expired", whether or not the shelf life period had elapsed?