Guide No. 9
Revision I
Published on: 11/03/2020

Metallic screw capping for pressurised wines & other beverages on BVS type glass finishes - With redraw

Scope of application

This guide gives the necessary information on good practices for bottling wines and other products with a CO2 content > 1.2 g CO2/l with an aluminum screw cap on a BVS-type glass finish accommodating redraw of the application cap.
Both the cap and the bottle must be foreseen for the application, subject to a written agreement between the cap supplier, the bottle supplier, and the filler.
It remains the responsibility of the filler to ensure that the package is appropriately designed for the product bottled and foreseen conditions of storage and transport as well as to avoid risk of injury on opening.
Attention is drawn to the necessity to observe special precautions for carbonation levels above ~3 g/l CO2 or a pressure exceeding 6 bars.
This guide does not cover the use of MCA-type pressure caps or smaller diameter BVP-type caps/finishes used with redraw.
The Guide defines:
  • The functions of the closure and its limits,
  • The specifications of each of the components related to each other, to fulfill the global functions within the determined limits.
Note that possible defects of applied closures and troubleshooting methodology are described in Cetie Bottling Guide N°11 - METALLIC SCREW CAPPING DEFECTS - IDENTIFICATION AND CORRECTION

Table of contents

1 Introduction
1.1 Scope
1.2 Units
1.3 Checking calibration of measuring equipment
2 Closure system for wines
2.1 Presentation
2.2 Functions of the closure system
2.3 Headspace requirements
2.4 Internal pressure 
3 Glass bottle finishes

History
First edition : 01/2016
Revision I : 03/2020

Contributors

ACTEGA DS GMBH, AMCOR FLEXIBLES CAPSULES, ARDAGH GERMANY, ARDAGH UK, ARDAGH UK, BV GLAS, CAPSULES TORRENTE, CLOSURE LOGIC, DAIM POLSKA, ENCIRC GLASS, VERALLIA FRANCE, GRACE (HENKEL ADHESIVE TECHNOLOGIES), GUALA, BACARDI, HERTI FRANCE, JGPC, MGJ, NESTLÉ WATERS, SAVERGLASS, SAZERAC, TORRENT CAPSULAS, VERALLIA FRANCE, VETROPACK, VINVENTIONS DEUTSCHLAND, WILLIAM GRANT & SONS, ZALKIN 

Document under responsibility of working group:

Cap manufacturers wg1 and glass manufacturers wg3
WG chair: Klaus DEMBSKI - BUNDESVERBAND GLASINDUSTRIE E.V. (Federal Association of the German Glass Industry)
Vice WG chair : Mr. Giuseppe MENCACCI (Process innovation manager - GUALA CLOSURES S.P.A.)
This joint group aims to coordinate the production of documentation at the junction of glass container production and closure application. It accompanies the development of documentation for glass containers for different types of closures including, but not limited to, aluminum screw caps, crown caps, and their components (liners).  This joint group also provides an opportunity for cap and liners manufacturers to open discussions on specific work items of the permanent glass groups

 

Published document
Cover - Guide No. 9 - Metallic screw capping for pressurised wines & other beverages on BVS type glass finishes - With redraw

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