Kegging Components » Foam on Beer Detectors (FOBs)

Foam on Beer Detectors (FOBs) are useful in long draw draft beer systems and help to reduce beer waste and increase profits. 

When a keg empties and starts spitting foam, the FOB engages, stopping the flow of beer. This keeps the line full of beer rather than allowing it to fill with foam. Keeping the line full of beer eliminates the need to refill/flush the foam from the line when tapping the next keg which, depending on the length of the beer line, can significantly reduce beer waste.