See under filling level.
Designation (also filling level) for the height of the liquid level in a wine bottle, barrels or other wine containers. The distance in the bottle between the lower cork end and the liquid level ideally measures 10 to 15 mm. Too much air (oxygen) causes undesirable oxidative processes and can accelerate the aging of the wine. Therefore, modern bottling plants today fill the gap with inert gas.
With leaky or damaged corks, liquid loss occurs due to evaporation, and depending on the damage condition, more or less penetration of oxygen and also pollutants (microorganisms) from outside. The greater this loss and thus the amount of air, the greater the risk of oxidation. With longer bottle storage, especially when using natural corks, a small amount of wine is absorbed by the cork, which can result in a reduction of up to half a centimeter in the bottle neck. Certain producers, such as Château Mouton-Rothschild (since the 1991 vintage), therefore use shorter corks.
When opening several bottles of the same wine, it is advisable to open the...
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