A Magics Hydrometer is, presumably, a magical version of an alcoholometer, a tool used to determine the alcohol proof of a beverage.[1]

The Swott Malt Whisky blend, produced by Swotts & Swotts Scotch Distilleries since 1874, was tested by a Magics Hydrometer, and certified to be 18% below the standard proof for distilled drinks.[1]


Notes and references