Found Sprecher's being sold locally draft, not reconstituded syrup and co2 water, any other root beer sold in this fashion?
Many of the Amish nearby make home made rootbeer and sell it from their farms or at a nearby market by the glass or jug.
Their recipe is basically water, yeast, sugar and rootbeer extract (sometimes a few raisins). It has a nice light flavor and carbonation but has a limited shelf life. Because of the yeast there is a limit to how much you may wish to drink in a day........we call it bellyache beer
Good stuff and cheap too.
Tony