Switchel was a popular drink among laborers and field workers in the 18th and 19th centuries. We found references to it while researching ideas for a our YouTube cooking channel. After producing a video on how to make switchel, a viewer brought this switchel concentrate to our attention. Easy to mix, and so delicious. This was the original energy drink perfect for quenching the driest thirst and for replenishing those electrolytes. 16-ounces makes nearly a gallon of pure, natural refreshment.