Diet Coke Bag-in-Box (B.I.B.) fountain syrup in a 5-gallon format, made by The Coca-Cola Company. This commercial-grade syrup concentrate is designed for use with soda fountain machines and is also compatible with consumer soda systems like SodaStream.

The syrup should be mixed with carbonated water at a ratio of 5.5:1 (five and a half parts carbonated water to one part syrup). When mixed at this recommended ratio, the 5-gallon box yields approximately 32.5 gallons or 346 twelve-ounce servings of Diet Coke. The product has a 45-day shelf life and does not require refrigeration, though it should be stored in a cool place between 40 and 77 degrees Fahrenheit for optimal taste quality.

This caffeinated, Kosher-certified product is ideal for restaurants, offices, and events. To connect the bag-in-box to a soda fountain machine, use a Coca-Cola BiB connector. For consumer soda systems, a Coca-Cola BiB tap valve or adapter is required. The box can sit in any position, allowing every last drop to be used, and both the box and bag are recyclable.