One staple to buffet-style breakfast bars is the juice dispenser. There are dispensers that can serve two to four flavors. Some even have a separate dispenser for ice. One of the most important things to calculate when selecting a unit is how many glasses of juice it actually makes. Each juice dispenser has separate compartments to hold juice concentrate. The juice is mixed with water when dispensing for a nearly fresh squeezed taste. The capacity for each compartment is measured in liters. Unfortunately, drink cups are measured in ounces. If you want to calculate how many drinks each compartment will hold, simply multiply the number of liters by 34; there are 34 ounces in a liter. To determine how much actual beverage that is, you will then need figure out the water to concentrate ratio. Orange juice is usually mixed in a 5-to-1 ratio. This means that a six ounce glass of orange juice, filled from a premix dispenser will contain five ounces of water and once ounce of juice. Therefore, a juice dispenser that can hold four liters of orange juice concentrate actually has 20 liters worth of juice. Twenty liters converts to 680 ounces, which is approximately 113 six ounce glasses of juice.