Maker’s Mark is America’s only handmade bourbon whisky – never mass produced. Each individual batch is less than 19 barrels. Old-style sour-mash methodology is used, starting each new batch fermentation by using a little of the last, resulting in a more consistent product. The first bottle of Maker’s Mark was sold in 1958 and featured the dipped red wax seal. Unlike most bourbon, Maker’s Mark is not aged for any specific period of years; rather it is bottled and marketed when expert tasters agree that it is ready. Also, the barrels are moved from the lower to the upper floors of the warehouse and back down during the aging process to benefit from the differences in temperature at the various levels. This practice was once common in the distilling industry, but has been largely abandoned due to the high labor expense. Maker’s Mark is sold in unusually-shaped squarish bottles which are sealed with a red plastic resembling the original wax seal.