The first Kaesler Vineyards were established circa 1893, the Bogan Block at Marananga was planted in 1899. Kaesler are the grateful custodians of these marvelous old vines, which have seen the federation of a nation, two world wars and several generations of blood sweat and tears. The amazing quality of fruit from Bogan are combined with parcels from Kaesler's 1965 Nuriootpa block, planted to the same clonal material as the precious Old Bastard vineyard, crafted to form a synergy between the finest Barossa Shiraz and quality new oak.

Soils are quite different at Marananga, consisting of sandy loam, followed by clay with limestone thinly dispersed. This tends to give the wine more blue fruit characters and lift combined with the intensity of the old vines. Bogan is vinified over a range of 28C to 30C before being transferred to oak for the completion of malolactic and a term of maceration on skins, followed by pressing to barrel. The wine is topped regularly and treated to another racking, matured thirteen months in a combination of new and seasoned Allier and Vosges French oak barriques. Kaesler try not to bother the wine unless it needs assistance, the Bogan is bottled without fining or filtration. Alcohol 15.0%