A lot of people find the whole idea of decanting Port nerve-racking. Fortunately it is a lot easier than you might imagine.
Firstly not all Port needs decanting. Most styles of Port do not need decanting because they have had the sediment removed before bottling. These Ports need simply to be opened and enjoyed.
Vintage Ports mature in the bottle and so are bottled unfiltered. Over time as Vintage Port ages, the natural sediment in the wine will settle in the bottle. This therefore means that Vintage Port needs to be decanted prior to serving to remove this natural deposit.
As a rule of thumb if a Port has a cork stopper it won’t need decanting (and should be stored upright). If it has a driven cork (a cork that needs removing with a corkscrew) then it’s pretty likely it’ll need decanting.
Tools for the job: Clean decanter and Decanting funnel. The decanting funnel is not essential but makes decanting a lot easier.
Before you start, have your clean decanter at the ready (alternatively, you could also use a clean, empty wine bottle or a jug). If there’s time, stand the bottle upright for a few hours prior to serving. This allows the sediment to settle and will make the decanting a little easier.
Without shaking the bottle too much and with the bottle still vertical, remove the foil and wipe the top of the bottle clean. Gently ease the cork out. The older the Port the more delicate the cork will be. If the cork crumbles don’t worry as the bits of cork can be removed using a decanting funnel.
Slowly and steadily, pour the Port into the decanter through your decanting funnel.
Some ports have a splash of white paint on the bottle. This is there to tell which way up it was cellared; this mark should be uppermost during decanting.
A lamp or candle flame behind the bottle will help you see if any sediment is approaching the neck – This is when you should stop pouring.
TOP TIP: Don’t waste sediment which, being the residue of old grapes skins, is a natural substance rich in flavour and it is not harmful. These last drops in the bottle will enhance many soups or stews.
How the Ports keeps once opened: Vintage Port should ideally be consumed within 72 hours of opening. Having spent its 'life' in bottle with little contact with the air, it quickly oxidises. Other styles, like the Late Bottled Vintage and the aged Tawny Ports, can be consumed from four to eight weeks (or longer) from the date of opening.