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MAESTRO

Brand name for one of the French company ALCAN Packaging Capsules in cooperation with the champagne house Duval-Leroy developed Champagne closure, which was presented to the public in mid-2009. ALCAN is also the inventor and manufacturer of the well-known screw cap brand STELVIN, The closure consists of a capsule with Capsules with integrated bracket for opening. So since no conventional cork is used, this is also the dreaded problem of Korkschmeckers locked out. Opening one Champagne bottle is much easier and faster than with a conventional closure. In addition, the “plop” (opening noise), which is popular with many consumers, is retained. In the opinion of culture-savvy people, no noise should be made when removing it, or "popping the cork" should not be part of the repertoire of a cultivated wine or sparkling wine connoisseur.

This special closure consists of a plastic capsule placed over the bottle head with an internal crown cap that is not visible from the outside. On the side of the bottle neck there is a ten centimeter long bracket that pulls up the capsule when it is folded up, thereby loosening the bottle cap. The capsule located above the crown cap sits so tightly over the bottle neck that a pronounced “pop” is created when it is pulled up. It should be noted that during the bottle fermentation and subsequent storage on the yeast until dégorgement (Removal of the yeast set) are usually also closed with crown caps and only then get the final closure.

Alcan said it had invested around one million euros in the development. An annual production of 15 million units was assumed. After a decision by a regional authority of the French competition authority DGCCRF in the Champagne but the closure was not allowed to be used. This is justified by a law for the protection of products with designation of origin from May 1919 and an EU directive that defines the criteria for the closure of sparkling wines. The company Alcan, however, protested and argued with the advantages over the classic cork closure with metal cap and Agraffe (Wire basket). The final status in this case is not known. See also under closures and Weingenuss,

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