Oxygen changes things.
Sometimes that`s a good thing, sometimes it`s a bad thing.
When we preserve food we are attempting to eliminate it – when we consume wine we often want to add it. Adding oxygen to wine will change it`s flavour. I have yet to find a single expert who advocates that all wines should be exposed to oxygen (some will not improve and others will deteriorate) though some are more and more reluctant to do this at all. All agree that the flavour changes; there are simply differing opinions on the results of the transformation.
Adding oxygen to wine is done in one of several (or a combination of multiple) ways:
- Decanting: exposing wine to the open atmosphere; typically done in a decanter which usually has a narrow neck and wide base to expose the maximum amount of surface area (typically done with a decanter).
- Aerating: Unscientifically explained as `gurgling` which can be done in mouth or with a special device called an aerator (many actually fit into the end of your wine bottle and aerate as you pour).
- Swirling the wine in your glass
- Gurgling wine in your mouth (as described in how to taste wine).
Most commonly purchased wine is fine to drink from the bottle (though most use glasses or straws). Generally a strong wine will open and become smoother while a wine left to breathe for too long can become dull and flat.
A decanter allows you to patiently expose wine to the elements meaning that you have control of the end results as long as you are tasting as it remains exposed to the air (generally this ranges from 20-45 minutes). Small tastes can assure you that you are on track and happy with what is happening and you can choose the optimal flavour that suits your palette (and patience).
An aerator forces wine to *GLUG* into your glass. It can be hyper fast and save all the patience needed when decanting. Speed has it`s price as the wine is transformed drastically; it`s a bit all or nothing (though you could pour a sip and see if you like the results before emptying the entire bottle into your glass). Another advantage is that you can easily pour a taste from the bottle next to a taste from the aerator and gain instant perspective on the difference between the two.
Here`s some general perspective on when (and when not) to add air:
- Many young reds (less than 6 years) will benefit from the process.
- Most whites will not.
- Heavy, strong and dominant wines (especially with a lot of puckering-inducing tannins) make great candidates for oxygen.
- Older, frail reds will lose much of their magic in the process; handle with caution.
The best advice is to experiment and evaluate the results for yourself and share your successes and struggles with fellow enthusiasts and journal your results for later reference.



