The Interwinery Analysis Group was founded in the Barossa Valley in 1983. Prior to this, informal comparison of results was made by a few laboratories in the area, beginning in about 1966. The Group commenced with approximately six members, among them Orlando, Seppelts, Penfolds, Saltram and Tollana. Incorporated in December 1992, the group now includes over 200 members from every winemaking region in Australia plus wineries and laboratories from New Zealand, South Africa, the United States and France, making it the largest proficiency testing organisation of its type in the world.

Interwinery Analysis Group (IWAG)

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Interwinery Analysis Group (IWAG)

Org chart

Teams

Offices

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