Ireland produced a significant amount of the corned beef in the Atlantic trade from local cattle and salt imported from the Iberian Peninsula and southwestern France. Coastal cities, such as Dublin, Belfast, and Cork, created vast beef curing and packing industries, with Cork producing half of Ireland's annual beef exports in 1668. Although the production and trade of corned beef as a commodity was a source of great wealth for the nations of Europe, in the colonies themselves, the product was looked upon with disdain due to its consumption by the poor and slaves.