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Gefährliche Konservendosen

Lebensgefährlicher «Sicherheitstipp» von der ARD

Die Reihe «Wissen vor acht» der ARD hat eigentlich einen guten Ruf: Täglich werden hier auf unterhaltsame, manchmal auch gequält lustige Art Informationen zu technischen Phänomenen aus dem Alltag vermittelt. Doch: Jetzt hat die ARD einen bösen Bock geschossen – einen lebensgefährlichen!

Büchsen öffnen!

In der dreiminütigen Sendung vom 15. Januar erklärt der lustige Präsentator Vince Ebert, dass man Büchsen mit Fertigmahlzeiten zum Aufwärmen nicht direkt auf die Herdplatte stellen soll (welcher Depp kommt eigentlich überhaupt auf die Idee?) – und die Aussage wird auch mit spektakulären Bildern untermalt. Die Büchse explodiert. Und der Grund dafür wird auch korrekt erklärt: Der Wasserdampf, der in der Büchse entsteht, sorgt für den gefährlichen Überdruck.

Dann aber wird die Präsentation selber lebensgefährlich: Der Klugscheisser vom Dienst schlägt vor, die Dose in einem wassergefüllten Glastopf auf die Herdplatte zu stellen. Begründung: Das Wasser im Glastopf würde «nicht über hundert Grad heiss, also könne auch das Wasser in der Büchse nicht über hundert Grad heiss werden und somit nicht verdampfen».

Das, liebe ARD, ist blanker Unsinn, und lebensgefährlich zudem!

Jeder, der schon mal selber in der Küche gestanden hat, weiss, dass Wasser schon ab vierzig oder fünfzig Grad zu dampfen anfängt – wenn es unter Druck steht, sogar schon früher. Darauf basiert ja die Wirkung des Dampfkochtopfs.

Das heisst für den, der sich mit Büchsennahrung ernähren will: Stellen Sie die Büchse nicht direkt auf die Herdplatte (aber so blöd sind Sie sowieso nicht!), sondern stellen Sie sie in eine wassergefüllte Pfanne («bain marie» heisst das unter Fachleuten) und öffnen Sie sie vor dem Erhitzen!

Alarm! hat die ARD am 16. Januar, um eine Stellungnahme gebeten. Bis heute (20. Januar) hat sich der Sender nicht dazu geäussert.

Schauen Sie sich die Sendung selber an!

 Veröffentlicht/zuletzt geändert: 16. Januar 2014

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