Redbreast dates back to 1903 when Jameson entered into an agreement with the Gilbeys Wines & Spirits Import Company to supply them with new make spirit from their Bow St. Distillery. The custom of that era was that distilleries sold bulk whiskey to bonders who, being in the business of importing fortified wines such as sherry and port, had ample supplies of empty casks in which to mature new make whiskeys under bond.
Single pot still whiskey is a style of Irish whiskey made by a single distillery from a mixed mash of malted and unmalted barley distilled in a pot still. Somewhat similar to single malt whiskey, the style was defined by its inclusion of unmalted raw barley in the mash in addition to malt.