What are the key elements of a draft beer system?

The key elements of a draft beer system primarily involve components that work together to store and dispense the beer effectively. The inclusion of the keg, coupler, FOB (foam on beer), and faucet captures the essential elements needed for a well-functioning draft system.

The keg serves as the container that holds the beer, while the coupler is the device that connects the keg to the draft system, allowing the flow of beer from the keg to the faucet. The FOB is an important component that helps prevent excessive foam from entering the lines, which can disrupt the flow of beer and cause waste. Finally, the faucet is the point of service where the beer is dispensed into the glass. These elements collectively ensure that a draft beer system operates smoothly and delivers an optimal experience in terms of both quality and efficiency.

The other options contain components that may be associated with beer service but do not accurately represent the fundamental elements required for a draft beer system. For example, while a tank and pump might be relevant in certain systems, they do not specifically address the core components necessary for pouring a draft beer. Similarly, a chiller and mixer are not standard components in traditional draft systems, as draft beer is typically served at regulated, consistent temperatures without additional mixing beyond