About Kaesler Wines

Kaesler History

The first owners of the Kaesler vineyards were Silesian pioneers who came to the Barossa Valley in the 1840s and took up 96 acres in 1891. By 1893 they had planted the entire acreage with Shiraz, Grenache, Mataro (Mourvedre) and White Hermitage vines. Some of the gnarled dry-grown Shiraz still remains and provides the backbone of the intense wines we produce.

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Over time, the Kaeslers pulled vines to plant fruit trees and to keep horses and cows. The site now home to the Kaesler Cellar Door; the old brick horse stable now holds a private tasting room; the cow shed now the present restaurant, Kaesler Kitchen; Ernst Kaesler’s old house, now the Kaesler Cottages B&B.

The remaining vines mostly consisted of red and fortified varieties, some Grenache added in the 1930’s and more Shiraz planted in the 60’s and 70’s. These plantings accounting for some of the celebrated aged Shiraz we produce today. 

A Century of Tradition

The Kaesler vineyards were owned and operated by the Kaesler family from 1893 to 1986. In 1999, winemaker Reid Bosward seized the opportunity to become the head of the new Kaesler family when he and his partners bought Kaesler, becoming the third owners of this property. At this time, the Kaesler vineyards consisted of over 70% red wine vines, all 40 years of age or more.

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Now having access to premium old vine material, Reid set out to produce bold estate wines representative of the Barossa Valley. The intensity of the old vine Shiraz inspired Reid to produce a special premium batch, the “Old Bastard.” Classified as “Outstanding” by Langtons with its rich and intense fruit style, the Old Bastard Shiraz paved the way for Kaesler. A string of highly celebrated wines followed suit, the generous Stonehorse range and premium Old Vine Shiraz, “The Bogan” and Alte Reben wines to name a few.

A 5 star James Halliday rated winery, Reid and winemaker Stephen Dew, with their distinct style and modest winemaking techniques, consistently produce wines rated over 90 points by industry peers and publications.

Adding to our growing family, Reid and his partners acquired vineyards in the prominent wine regions of the Clare Valley and McLaren Vale, establishing the Clare Wine Co. and Nashwauk brands. Applying the same winemaking techniques and philosophies as their Barossa Valley wines, they created a signature style that emanates across the all their regional brands. 

Green Statement

Our tertiary educated vineyard managers take the modern approach to sustainable farming, in that soil health is paramount; we regularly monitor soil health and pursue natural means of soil care and protection. Estate-produced and local compost is used in our vineyards in combination with natural enhancers and mulch. Our partnership with ‘Trees for Life’ saw up to four hectares of saline land revegetated with native plants in an aim to reduce further degradation to the soil. We believe that the native vegetation planted around the vineyard promotes beneficial organisms and increases wildlife activity. Our viticulture is centred on sustainable efficiencies supported by traditional pruning techniques and canopy management that reflect the Australian climate; intelligent viticulture that we have evolved to suit our climate and wine styles.

Meet the Workers

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Reid Bosward

Winemaker / CEO

A graduate of Roseworthy winemaking college, Reid spent his early career in the Hunter Valley at Tyrrell’s.

With a wine making career that spans over 25 years, he has worked multiple vintages around the world in Bordeaux, Minervois, Moldova, South Africa and Spain.

Reid moved to the Barossa in 1997 to become chief winemaker for Cellarmasters and in 2000 he was able to purchase the Kaesler estate with his business partners. Since then Reid has been chief winemaker and has overseen the development of its portfolio of single vineyard old vine estate labels.

Reid has also acquired the legendary Yarra Yering as well as estates in Clare Valley and McLaren Vale, has been judge at both the Barossa and Melbourne Wine shows and in 2014 he was made a ‘Baron of The Barossa’ for his outstanding contribution to the Barossa.


Stephen Dew


Stephen is a passionate winemaker, an expert in old vine and single vineyard wines, and has been crafting red wine vintages at Kaesler, Nashwauk and Clare Wine Co since 2002.

With 30 years experience in the wine industry, Stephen was hooked from the first time he entered a winery and realised the power of the grape - and the person in the white coat!

He has worked in a number of wineries in his career including Lindemans, Penfolds and Charles Melton resulting in a wide breadth of knowledge from the science of oenology to the importance of marketing and presentation.

Stephen has acted as an Associate Judge at the Barossa Valley wine show and has also completed a number of vintages at Domaine Prieure Roch in Burgundy where he learned the natural winemaking process which lead to the creation of the Fave Grenache.


Nigel van der Zande

Vineyard Manager

A grape, a cow, a lamb or native wildlife - if it can be grown and nurtured, Nigel knows how.

Nigel trained at Roseworthy and has been involved in agriculture and grape growing all his life. Even his long past stints in a native park, a piggery and as a gardener have helped him appreciate respect for the harvest.

Nigel has worked with the group as a viticulturist since 2001 and has specialised in nurturing new growths and implementing sustainable practices across the industry.

Nigel has worked and trained in regions all over the country as well as internationally. This includes the Clare Valley, McLaren Vale, the Rhone Valley in France, China and in the north of New Zealand.



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