WATER is the best thirst quencher!
The Prophet (s.a.w.s) reportedly said: "The best drink in this world and the next is water." Water is moist and, because of this, slightly cooling. It extinguishes thirst and preserves the innate moisture of the body. It assists digestion of foods and absorption of nutrients. Said the Prophet (s.a.w.s): "When you have thirst, drink [water] by sips and do not gulp it down....Gulping water produces sickness of the liver."