'the reid' Vodka is made from three ingredients: barley, water and yeast. 'the reid' starts life in the same way as Cardona Distillery Single Malt Whisky, giving fullness and body to this uncompromising Vodka. The Scottish two-row barley is milled and mixed with the Cardrona water and then fermented. It is then distilled in two 7.5 metre German column stills to over 95 percent alcohol. Cardrona water is then added back to bottle at a strength of 44 percent alcohol by volume.