No, only those who have had a bottle aging. The time you need to rectify it, first Cataló and if you find strange odors or wine does not offer you what you expect from it, turn it over in the cup until he recovers. You know, the aromas are like fire needs oxygen to recover.
Another good solution if youre going to share that with more diners came, the whole bottle is decanted into another container. In extreme cases you could also jarrearlo with this odor those suffered as a result of reduction in the bottle is removed.
