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On most filling-lines, the area between the rinser and capper-exit is the most risky. It is critical to ensure no contaminants enter the glass vessels once they have been inverted and rinsed. Widemouth vessels (jars) are most susceptible along this stretch of the line, as contaminants can easily access the vessels. The majority of ‘glass-in-product’ consumer-complaints involving fragments found in glass jars and bottles are the result of breakages that have occurred between the rinser and capper-exit. Common causes are impact-failures on the conveying system, vessels shattering in infeed-worms or starwheels, and breakages occurring in the capper (particularly for widemouth ware).

Recording of ALL breakages that occur in the filling-hall is critical, and accurate details must be recorded on the 'Glass Breakage Register' so that a clear picture of events is available for future reference. If a manufacturer is faced with a potential glass-in-product ‘recall’ event, the data recorded on the ‘Breakage-Register’ will provide valuable information when assessing the likelihood of the contamination occurring on the filling-line.

Equally important is the establishment of glass-breakage ‘clean-up’ procedures for the different pieces of equipment in the filling-hall (including conveyor-breakages). When a breakage occurs at any point in the filling-hall, staff should have immediate access to the appropriate ‘glass clean-up’ procedure, and carry this out as required. Details of the breakage must be entered on the ‘Glass Breakage Resister’, and signed off by a suitably qualified/experienced staff-member.

The “Glass Breakage Register” (#104) makes provision to record all breakages within the filling-hall, regardless of their location. It will be suitable for use on most food and beverage filling-lines. In larger Plants where there is some distance between individual pieces of equipment, it might be more appropriate to use separate forms at each station to ensure the details of all breakages are recorded.

More detailed information on the recording of breakages within the filling-hall, and the requirements of effective ‘glass clean-up’ procedures can be found in the GLASSPLANT CONFIDENTIAL publication ‘QUALITY FOCUS – 3’ (and also the ‘QUALITY FOCUS – PARTS 1 to 5’ summary document).

To view the full PDF for FREE click on the download link below



'STATIONERY' for FOOD & BEVERAGE Manufacturers

GLASSPLANT CONFIDENTIAL has been associated with both the FOOD & BEVERAGE industries, and the GLASS-MANUFACTURING industry for many years. GPC recognises the importance of best-practice manufacturing procedures – both in the glass-plants where bottles and jars are manufactured, and the filling plants where the vessels are filled. As part of the process to ensure food and beverage manufacturers obtain the best performance from their glass containers, a range of stationery has been developed to ensure plants record all critical information when filling their glass vessels. These documents are FREE to download, and plants are encouraged to utilise them as part of their in-house quality procedures.