High High Proof is a fivefold filtered moonshine with an alcohol concentration of 72%, extra strong, just as smooth, providing that further kick for the more robust Moonshine lovers. It was an illegal grain alcohol distilled during the era of the American Prohibition, bottled in traditional Mason Jars to avoid the suspicion of the authorities. O’Donnell Moonshine brings just a hint of that infamous epoch to a new generation. Bottled in traditional Mason Jars.