(Decanter) - California's Ridge Vineyards has thrown its weight behind full disclosure of ingredients on wine labels, beginning with its 2011 vintage.

From its 2011 vintage onwards, Ridge Vineyards, which refers to its winemaking approach as 'pre-industrial', is adding to labels a list of ingredients it uses, such as sustainably grown grapes, calcium carbonate, indigenous yeasts and minimum effective SO2.

By doing so, it is eschewing additives such as Mega Purple, a 2000-to-1 concentrate from red grapes that adds texture, body and color, and dimethyl dicarbonate, a chemical known commercially as Velocorin that eliminates Brettanomyces along with any other living organism in a wine.

Its move adds weight to those who argue full-disclosure offers more transparency for wine drinkers.