Clean in every detail: the new, hygienic KHS crowner
Increased microbial safety and simple cleaning / Effective protection against oxygen penetration in beer bottles / Simple retrofit into existing systems possible
"The crowner is a critical element as it constantly has to operate in beer residue. This is a challenge during operation which we've been able to considerably improve and alleviate," says Manfred Härtel, filling product manager for KHS. As in the beer filling process, also when closing a bottle oxygen must be prevented from entering the inside of the receptacle. If not, the beer undergoes oxidative change which causes it to develop an unwanted aging taste and also shortens the beverage's shelf life. The crowner element must also stay microbiologically clean during closure so that it does not contaminate the beer bottles.
The new KHS crowner improves hygiene and cleaning through a number of different innovations. For instance, the contact area on the head piece to the capping ring has been considerably reduced. This allows more forceful rinsing and reduces the amount of residual beer on the components. In order to decrease the contact area between the cork shoe and head piece, KHS has enlarged the distance between the two. This enables optimum flushing. In addition, a special sealing ring prevents beer flowing into the thread of the crowner.
Thorough cleaning thanks to material savings
The crowner is always only cleaned with hot water or a foam solution from the outside. For this reason KHS has added two extra flushing openings so that the rinsing media can access the soiled areas inside the machine much better. "By removing material we're increasing permeability. This boosts microbial safety and shortens cleaning times without us having to compromise on function or stability," explains Härtel.
Not only sensitive craft and draft beers profit from these improvements; non-alcoholic beers do, too. The latter are hygienically even more sensitive as they do not have the sterilizing effect of alcohol.
The KHS Group is one of the leading manufacturers of filling and packaging systems for the beverage, food and non-food industries. The KHS Group includes the following companies, among others: KHS GmbH, KHS Corpoplast GmbH, KHS Plasmax GmbH and NMP Systems GmbH.
KHS GmbH manufactures modern filling and packaging systems at its headquarters in Dortmund, Germany, and in Kleve, Bad Kreuznach and Worms. The KHS Group's PET expertise is pooled at KHS Corpoplast and KHS Plasmax in Hamburg, Germany, where light PET packaging and innovative coating systems are developed and produced. NMP Systems GmbH, a wholly-owned subsidiary of KHS GmbH based in Düsseldorf in Germany, designs and markets new, resource-saving packaging systems for PET bottles.
The group has an international production and service network. In 2015 KHS was awarded the Top 100 seal of approval for exceptional innovative power and outstanding innovative success among German SMEs. In 2015 the KHS Group and its 4,871 employees achieved a turnover of around €1.17 billion within the Salzgitter consolidation. The companies in the KHS Group are 100% subsidiaries of the MDAX-listed Salzgitter AG corporation.
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