When must a foam-on-beer (FOB) detector be reset?

Study for the Cicerone Level 1 Certification. Use multiple choice questions and flashcards with hints and explanations. Prepare effectively and ace the exam!

A foam-on-beer (FOB) detector is an important device used in draft beer systems to prevent excess foam from entering the lines, which can lead to wasted beer and inconsistent pour quality. The primary function of a FOB detector is to recognize when a keg is empty and help to maintain a steady flow of beer while minimizing foam.

Resetting the FOB detector after changing a keg is crucial because when a keg is replaced, the detector needs to recalibrate to the new keg's pressure and ensure proper flow. If it is not reset, the device may not function effectively, leading to increased foam production and potential waste of the new keg’s contents. This action guarantees that the FOB detector can accurately sense the new keg and maintain optimal pouring conditions, thereby ensuring that customers receive a well-served beer.

In this context, the other options do not require a reset of the FOB detector. Pouring a beer or serving beer does not affect the calibration related to keg status. Similarly, resetting every hour does not align with the operation of the FOB detector, as it should specifically respond to keg changes rather than a time schedule.

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