1. Pineapple Juice
Far and away, the best choice available. Doesn’t matter if it’s room temperature or a bit chilled, but nothing cold. And nothing with chunks in it, those can make you cough. Pineapple juice is slick, it will instantly moisten your throat, wet your tongue–and cause you to salivate, which is the best lubrication you can find. One glass per 45-minute set, a sip or two between songs, that’s all you need. Remember, you’re just lubricating, not quenching thirst. Do not go overboard with pineapple juice, you will spend the next morning in the bathroom. Crazy as pineapple juice sounds, it’s the best thing you can use, and I’ve converted every opera singer I’ve ever mentioned it to.