MATERIALS HANDLING Coffee is affected by environmental
influences: oxygen, moisture or light can lead to a loss of aroma and quality
Bialetti tests product quality with devices from Infinicon’s Contura S400 series
ALLEVIATING LEAKS Technology that optimises leak testing of coffee packaging T 26
he food and packaging market is facing major challenges including longer transport routes and pressure
to extend shelf life. In addition, there are increased demands in terms of environmental compatibility, legal requirements and consumer wishes. In order to fulfil these criteria, coffee producers must carry out leak tests on packaging during production to prevent damage.
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USING NON- DESTRUCTIVE LEAK TESTING Instrumentation specialist Infinicon has been developing packaging for coffee producers for some time - this is an industry vertical where quality requirements are particularly high. Arman Khazali, operations manager at Italian coffee manufacturer and Infinicon customer Bialetti, estimates that Bialetti’s annual output is 180 million coffee capsules and 2.9 million soft packs. Because these products are exposed to high water pressure during the brewing process in the coffee machine, a leak would impair the delivery into the cup and therefore the quality of the coffee. According
to Khazali, the main focus of an intelligent leak test must therefore be accuracy and the ability to provide a numerical quantification for each test in order to carry out a statistical analysis. “Non-destructive testing offers added value compared with a destructive test,” says Khazali. “Other advantages are the significant reduction in testing time and the fact that we are autonomous in terms of personnel and can therefore produce without downtime.”
A FAST, RELIABLE METHOD Bialetti, situated in the province of Brescia, Italy, has only recently switched from destructive water bath testing to the non-destructive method. It has been ensuring product quality with leak testers from Inficon’s Contura S series. With the help of an applied pressure increase method [see boxout] in the flexible test chamber, both the smallest and largest leaks are detected quickly, reliably and without test gases. “The Infinicon system makes a decent contribution
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