Peter launched his career as a chemistry and mathematics teacher before succumbing to a long-held interest in wine. After graduating as dux from a Bachelor of Applied Science (Oenology) at Roseworthy College, Peter joined the winemaking team in 1989, initially in the craftsmanship of sparkling wines, before moving on to reds as Penfolds Red Wine Oenologist. In 2002 Peter became the fourth ever Chief Winemaker for Penfolds. Peter’s careful custodianship has ensured that Grange and the other ‘older’ members of the Penfolds family, have continued to set the benchmark for their style and quality, while new additions to the range push the boundaries ever wider. 

In 2017, Peter was recognised for his work in the Australian wine industry, becoming South Australia’s Great Wine Capitals Global Ambassador, and received the significant honour, his appointment as a Companion of The Order of Australia (AC). In 2018 he was awarded an Honorary Doctorate from the University of South Australia. In 2021, Peter joined Decanter’s prestigious ‘Hall of Fame’. 

There has been an unbroken line of the Schroeter family working at Penfolds for 80 years. Kym, a third generation Penfolds winemaker, started in the Penfolds laboratory in 1987. Over the last two decades, Kym has overseen the development of the hallmark Penfolds White Wine Style. Wines renowned for their quality and style.

His Reserve Bin A Chardonnay 2009 was awarded ‘Best White Wine in the World’ at the 2011 International Wine Challenge. Kym himself was also honoured at the same event, being named as one of the top three white winemakers in the world. At the 2015 awards Penfolds went on to be named ‘International White Winemaker of the Year’. In 2025, his Yattarna was awarded a Master medal at the Global Chardonnay Masters and Bin 51 Riesling received a Gold Medal at the Global Riesling Masters.