<P> A wine bottle is a bottle, generally made of glass, that used for holding wine . Some wines are fermented in the bottle, others are bottled only after fermentation . Recently the bottle has become a standard unit of volume to describe sales in the wine industry, measuring 750 millilitres (26.40 imp fl oz; 25.36 US fl oz). Wine bottles are produced, however, in a variety of volumes and shapes . </P> <P> Wine bottles are traditionally sealed with a cork, but screw - top caps are becoming popular, and there are several other methods used to seal a bottle . </P>

What is the average size of a wine bottle