Samuel Smith's Old Brewery, popularly known as Samuel Smith's or Sam Smith's, is an independent British brewery in Tadcaster, North Yorkshire, England. It is Yorkshire's oldest brewery, founded in 1758.HistoryThe Old Brewery in Tadcaster, Yorkshire, in the North of England, was established in 1758. Samuel Smith, a successful butcher and cattle dealer from Meanwood, Leeds, funded his son John to buy it from the Hartley family in 1847. John Smith took over the brewery forming John Smith's Brewery, before moving his location next door. John Smith left the old building of John Smith's Brewery to his young nephew Samuel in 1886.In 1886 Samuel Smith opened the brewery Samuel Smith's Brewery under his own name.The Old BreweryThe Old Brewery at Tadcaster was founded in 1758 and bears the name of local brewer Samuel Smith. It is both the oldest brewery in Yorkshire and the only surviving independent brewery in Tadcaster.The smallest of the three modern-day Tadcaster breweries, Sam Smith's is one of the few remaining British breweries to employ the traditional Yorkshire Square system in the production of its beers.Brewing water for ales and stouts is still drawn from the original 85ft well, sunk when the site was established in 1758, and the yeast used in the fermentation process is of a strain that has been used continuously since approximately 1900 - one of the oldest unchanged strains in the country.