De Bortoli's Yarra Valley estate, established in 1987, produces Noble One from Semillon grapes susceptible to beneficial botrytis cinerea fungus. However, the 1984 vintage predates the current Yarra Valley facility (established 1987); research indicates Noble One was originally created as 'Australian Sauternes Botrytis Semillon' by winemaker Darren De Bortoli in 1982, likely at another De Bortoli location. The botrytis infected grapes concentrate sugars and flavour compounds whilst reducing acidity, creating the wine's distinctive honeyed character. Vintage conditions for 1982-84 enabled reliable botrytis development in suitable sites.

Botrytis-affected Semillon grapes were carefully harvested and pressed to separate juice from concentrated must. Fermentation occurred slowly at cool temperatures to preserve aromatic volatiles and maintain natural acidity balance. The wine fermented to approximately 10-11% alcohol with significant residual sugar (typically 100-150 g/L), then aged in neutral vessels to allow flavours to integrate and mature. The wine's golden colour and complex dried-fruit character developed over time, with no added sulfites beyond minimal preservation additions.