Natural wines are made with minimal intervention in the vineyard and winery. This means that the grapes are often grown organically or biodynamically, without the use of synthetic pesticides or fertilizers. In the winemaking process, natural wines typically avoid additives like sulfites, which are commonly used in conventional wines to preserve freshness and prevent spoilage. The fermentation of natural wines relies on wild yeasts found on the grape skins and in the environment, rather than cultivated yeast strains. This can lead to unique flavors and characteristics, making each bottle distinct. Natural wines are often unfiltered and may have a cloudy appearance, reflecting their artisanal production methods.