At Broc Cellars, all of our wines are made using spontaneous fermentation, a process that means we only use native yeasts and bacteria that exist on the grapes in order to make wine. We don’t add anything – this includes nutrients, yeast, bacteria, enzymes, tannins or other popular fermentation agents. Sulphur is a naturally occurring element in all wine, the amount found can vary. We add little to no S02, depending on the wine and style.
We used the Petillant Natural method for making our sparkling Chenin Blanc. We pressed whole clusters into stainless steel and fermented the wine until it reached 15 grams of sugar. Then we chilled the wine down to stop fermentation and bottled the juice. As it warmed up, fermentation began again in bottle. Wine spent 4 months in bottle, and was disgorged by hand with no dosage.