Limited stock. Dom Perignon is unique in that a proportion of every vintage is retained & aged within the cellars. This allows each new generation of winemakers to taste older vintages, to understand the history of wine, to ensure greater consistency of style & to observe how each vintage develops & matures with age. The cellar area dedicated to the storage of these older vintage wines is called OEnotheque (or, as the French say en 'o' teque) which means ' Wine Library'. Dom Perignon peaks at three distinct times during its life cycle, although the timing of the peaks may ary from vintage to vintage. The first peak ('phase de plenitude' in French) at about seven years, is the stage when the wine is at its most vibrant & the majority of the vintage is released into the market. The second peak usually occurs between fourteen & twenty years & is the stage when the wine takes on greater depth & vigour. The third, from 25 years onwards, is when the wine reaches full maturity & takes on an extra dimension of complexity. Dom Perignon occasionally releases small quantities of the OEnotheque wines when they reach a peak in their quality. Kept undisturbed in their original bottles in the Hautvillier's cellars, these wines offer a rare opportunity to experience mature Champagne aged in perfect conditions.