A device installed on the water supply line of coffee brewing equipment prevents contaminated water from flowing back into the potable water system. This device, often containing a check valve and air gap, acts as a barrier against the reverse flow of liquids, protecting the water supply from potential contamination by coffee grounds, oils, and cleaning agents.
Maintaining a safe and clean water supply is paramount for any food service operation. Protecting the water supply from potential contaminants ensures the health and safety of consumers and maintains the integrity of the water infrastructure. Historically, concerns over cross-contamination in food service environments have led to the development and widespread adoption of such protective measures.