Some fanciful hypotheses have been proposed as to why the 750ml bottle was chosen as the standard.
In fact, the specification of the wine bottle was established as early as the 19th century.
While wine is a French treasure, it is the UK that has surprisingly had a decisive influence on the volume specifications.
During the 19th century, France used the liter as its measure of liquid, while Britain used a different one: the gallon. The switch between the two measures limited trade between the two countries.
At the time, Britain was a major importer of French wine, and in order to avoid excessive calculations and unnecessary import and export problems, merchants from both countries agreed to ship wine in 225-liter (about 50-gallon) oak barrels, and to establish an intermediate capacity that would allow the number of bottles to be filled in full.
Since 225 liters of liquor can be divided equally into 300 750ml bottles, merchants set the middle volume at 750ml.
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