Organic wines are produced by using only organically grown grapes. No pesticides, herbicides, fungicides, chemical fertilizers, or synthetic chemicals of any kind are allowed on the vines or in the soil of the vineyards claiming to be organic. Strict rules govern the winemaking process such as hand-harvesting, the types of yeasts that can be used during fermentation and storage conditions in the vineyards of all imported and domestic wines that acquire certification.