Tracking trends in Australian wine composition and vineyard and winery practices
This project will track trends in Australian wine composition and vineyard and winery practices. Compositional trends will principally be monitored by collating analytical data from wines submitted to the AWRI’s analytical laboratories for commercial analysis; thereby extracting substantial value from an existing sample set consisting of more than 25,000 samples analysed annually, at a cost of considerably more than a million dollars. If necessary, that existing data set will be augmented with supplementary samples and analyses to address identified gaps (for example, in relation to specific regions, wine types or analytes), or through the addition of other data sets (such as Wine Australia’s export certificate data).
Trends in production practices will principally be monitored via a web-based survey of vineyard and winery practices performed at approximately five-yearly intervals, supplemented by visits to a range of producers and industry bodies, to consult and gain additional perspectives on the compiled data. These surveys will be equivalent to the AWRI Vineyard and Winery Practices Survey performed in 2016, which is to be published in 2018.
Extension of knowledge gained through practices survey
Information from the AWRI Vineyard and Winery Practices Survey released in May 2019 has continued to be extended through a number of platforms with additional information and analysis. This included multiple posters, workshops and a presentation at the 17th AWITC and articles published in Australian & New Zealand Grapegrower & Winemaker.
Several articles have contrasted technologies that have been quite widely adopted in the Australian wine industry such as cross-flow filtration (Figure 1) and juice flotation with others such as in-tank fermentation progress sensors that have very low levels of adoption. Australian trends on many practices appear to be very similar to those in other wine-producing nations.
Other data from the report have been used by AWRI staff and other authors to provide background on diverse topics ranging from under-vine weed management to inert gas use during grape pressing.
Eric Wilkes, Simon Nordestgaard