THE third biggest wine producer in Australia has celebrated its 40th year of operation.

The 140 staff at Buronga Hill Winery are winding down from this year's vintage, where about 90,000 tonnes of grapes were brought in for processing.

Between 2500 and 2500 tonnes of grapes were processed each day on the 22 acre property, which operates 24 hours a day five days a week all year, upscaling to seve...