In a long draw system, what does FOB stand for?

The correct interpretation of FOB in the context of a long draw system refers to "Foam On Beer." This terminology is significant as it deals with the proper management of draft beer systems to prevent excessive foam. A long draw system typically involves longer beer lines to transport beer from a keg to the tap, which can sometimes lead to foaming issues. "Foam On Beer" emphasizes the importance of maintaining the right balance between gas pressure and beer temperature, which impacts how the beer is dispensed.

Controlling foam is crucial for delivering quality beer; too much foam can impact the customer experience, resulting in waste and inconsistent pours. Understanding this term helps operators maintain their systems effectively, ensuring a smooth and pleasant serving experience for consumers.

The other options do not accurately represent the standard terminology used in the context of draft systems or do not relate directly to the operational aspects of beer dispensing.