These mints have been made in Vichy since 1828, when a local pharmacist figured out how to extract the minerals from the town's famous thermal waters. He mixed the extract with sugar and natural mint flavors, and produced the tablet. A favorite of the Empress Eugénie, the octogonal pastilles were immensely popular in the nineteenth century, not only for their reputed ability to cure heartburn but for their fresh minty flavor. The vogue for thermal waters has passed, but the candies remain, a testament of their tastiness. This product comes in a 25g (0.88 oz) roll.