What is decanting and when should it be performed?

What is decanting and when is it necessary?

If you've ever wondered why some wines are poured into a carafe before being served, the answer can be summed up in one word: decanting. Not to be confused with aeration, decanting is a precise oenological gesture which, if used correctly, can reveal a wine's full aromatic potential... or, on the contrary, alter it if poorly mastered. So, when should a wine be decanted? And how do you go about it? La Sommelière guides you.

What exactly is decanting?

Decanting involves transferring a wine from its original bottle into a carafe before tasting. There are generally two types of decanting, depending on the objective:

1. Decanting by separation: used for older wines, this process eliminates the natural deposits formed over time at the bottom of the bottle. The operation must be slow and delicate, so as not to agitate the sedimented particles.

2. Decanting by aeration: better suited to young wines, this process oxygenates the wine to awaken its still-closed aromas, soften its tannins, and give it more roundness on the palate.

In both cases, the aim is to enhance the tasting experience by promoting the wine's aromatic expression.

Which wines should be decanted?

To decant :

• Young, tannic red wines: a young Bordeaux, Cahors, Madiran or Rhône Syrah can gain in suppleness and complexity after aeration for 30 minutes to 1 hour.

• Great red wines for ageing: if they show a deposit, gentle decanting just before serving is ideal to separate the limpid wine from the bottom of the bottle.

• Certain powerful or evolved whites (Burgundian Chardonnay, Chenin, Savennières, etc.): light aeration can awaken their aromas.

Avoid:

• Very old and fragile wines: they can oxidize rapidly and lose their aromas in a matter of minutes. If you decant them, do so just before serving and observe the evolution in the glass.

• Natural wines with low sulfur content: they can react very quickly to oxygen.

How long should they be decanted?

• Strong young wines: between 30 minutes and 2 hours, depending on the structure of the wine.

• Medium-aged red wines: 30 to 60 minutes is generally sufficient.

• Very old wines: immediately before serving, just long enough to separate the sediment, without prolonged aeration.

Best practices for successful decanting

• Use a wide-base decanter for maximum aeration (ideal for young wines).

• Pour slowly, with a continuous incline, especially for older wines, keeping an eye on any deposits.

• If you just want to aerate the wine, simply passing it between two containers or stirring it in the glass may suffice.

Should I always decant?

No. It all depends on the style, age and condition of the wine. Prior tasting is always recommended: open the bottle, smell and taste. If the wine seems closed, austere or too concentrated, decanting can be beneficial. But if the wine is already expressing itself fully, it's best not to intervene.

Conclusion

Decanting is an invaluable tool for revealing a wine's complexity... provided you master it. It's not always necessary, but it can transform the tasting experience when adapted to the wine's profile. With a La Sommelière wine cellar, you can be sure that your bottles will be stored in the best possible conditions, giving them the decanting they deserve when the time comes.