Frostop Root Beer is a fizzy drink from the United States and is made by Frostop. Frostop started making this super creamy root beer way back in 1926. Soon its smooth old-fashioned flavor and long-lasting head became famous all across the heartland. Frostop Root Beer is still made in small batches from the proven formula of a percolation of various barks, herbs and berries as well as premium vanilla, caramel color and sweeteners. Frostop is and has always been caffeine free!