WaterJoe is caffienated water. It's served in PenguiCon's ConSuite, and at the CafePenguicon promotional room party at other conventions. Sometimes extra high-octane coffee is brewed with WaterJoe, with a big warning sign on it. By last count on 11/25/05, we had 8 flats of WaterJoe, which is 182 bottles at 20 oz. each.