There is a flavour which has crossed its "best before date". On testing it was found that the flavour has not developed any change in appearace and varaition in other physico-chemical parameters when compared to its initial values and when compared to a fresh flavour from the same supplier. In fact the GC-MS chromatogram also is OK.
Sensorially also, to our sensory panel it appears to be working for our product but does not qualify manufacturer's parameter. However, he has denied the possibility of development of any toxicity in his flavours even after expiry. Thus confirming a rule out of food safety issue.
Would request experts to pls comment on such situation.