Schierker Feuerstein is a German herbal liqueur, a half-bitters at a strength of 35% alcohol by volume (61 degrees proof, or US 70 proof), originally produced in the village of Schierke, located in the Upper Harz region of Saxony-Anhalt, Germany. Due to its red-brown coloration, the liqueur is named after the so-called Feuersteinklippe, a rock formation near the village made of reddish granite. The recipe was developed by the pharmacist Willy Drube (1880–1952), since 1908 proprietor of the chemist's Zum Roten Fingerhut in Schierke, and which was patented in 1924. Initially administered to Harz tourists, the liqueur soon became a big seller until production was discontinued during World War II. By the end of the war, Schierke belonged to the Soviet occupation zone. More information...
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