When distinguishing between the Barolo and Barbaresco wines of Italy, it is more useful to think in terms of producers' styles rather than looking for regional differences, according to one source.

The Hong Kong Standard said that the finest Barolos and Barbarescos are "incredibly long-lived", and are characterised by tannins that remain noticeable even when the wines are fully mature.

When they have a chance to develop in the bottle, the wines have a "seductive perfume" often likened to tar and roses.

Last month, The Daily Telegraph revealed that Barolo typically undergoes a longer fermentation process resulting in a more tannic wine, but beyond this the two styles can be difficult to tell apart.

"The vintage and site where the grapes are grown also have a great influence and most top producers make single vineyard wines from favoured sites," added the Hong Kong Standard.

"As with most of the better Italian reds, these bottles really come into their own when partnered with food."