Why is Traditional Balsamic Vinegar of Modena found exclusively in the same bottle for all producers?

The problem this vinegar has always faced is the threat from imitations. Acutely aware of this, in 1987 the Modena Chamber of Commerce appointed the then-young designer Giorgetto Giugiaro to come up with a 100 ml bottle so distinctive that it would symbolise and denote the actual product. For this reason, the Giugaro-designed bottle has since become the only one that producers are permitted to use, making the bottle itself a guarantee of authenticity