When you uncork a bottle of Champagne ora other classic method sparkling wine, the presence of bubbles is one of the elements that define the tasting experience. But how long can this effervescence last? According to scientific research conducted byUniversity of Reims Champagne-Ardennethe answer depends above all two factors: the age of the wine and the size of the bottle.
The study, published quanto a the journal ACS analyzed several bottles of Champagne stored for decades, measuring the residual quantity of carbon dioxide. This gas is responsible for the formation of bubbles and develops during the second fermentation quanto a the bottle, a typical phase of the classic method.
How bubbles are born quanto a Champagne
The effervescence of classic method sparkling wines comes from a second fermentation which takes place directly quanto a the bottle. this phase, yeasts and sugars are added to the causa wine, starting a new fermentation that produces carbon dioxide. Since the container is sealed, the gas cannot escape and dissolves into the liquid.
Over time the yeasts become exhausted and giorno, but the wine continues to evolve, developing more complex aromas. At the same time, however, a small quantity of carbon dioxide slowly manages to escape through the cork, gradually reducing the internal pressure.
Weather reduces the amount of CO₂
Analyzing Champagne bottles with decades of aging, researchers observed that the loss of carbon dioxide is inevitable. The older the wine, the lower the amount of dissolved gas.
According to measurements taken, after around fifty years a bottle may have lost up to 80 percent of its original CO₂. This means that the effervescence becomes progressively less evident, although the wine may continue to maintain aromatic interest.
The decisive role of the bottle size
One of the most interesting aspects that emerged from the study concerns the quantità of the bottle. The size of the container directly affects the rate at which the carbon dioxide disperses.
750 milliliter bottles can store a significant amount of gas for around forty years. larger formats, however, the loss is much slower. A 1.5 liter can maintain fizz for over eighty years, while a three liter bottle can theoretically last around 132 years before the CO₂ drops below the perceivable level.
The reason is linked to the relationship between the quantità of the wine and the surface of the cork: quanto a larger bottles the quantity of liquid increases more rapidly than the zona through which the gas can disperse.
For this reason, large formats are often preferred by collectors and enthusiasts who wish to preserve bottles for long periods. The greater quantità quanto a fact allows the Champagne to maintain the balance between effervescence and aromatic maturation for longer.
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