Debbie Thompson remembers a moment 15 years ago just after she had started working as winemaker at Simonsig Wine Estate, located outside of Capetown in the sumptuous Stellenbosch region of South Africa. “Someone asked me to handle a group wine tasting,” she says, “so there I was before 200 people – me, a real greenhorn, before a roomful of elderly wine aficionados. Everything I said about the wines, the vineyards and terroir was met by a sea of stony faces.

