自然酒, or "natural wine," refers to wine 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. The fermentation process typically relies on wild yeasts, and additives like sulfites are kept to a minimum or avoided altogether. Proponents of 自然酒 emphasize its unique flavors and the expression of the terroir, or the specific environmental conditions of the vineyard. This approach aims to create wines that reflect the natural characteristics of the grapes and the land, offering a more authentic tasting experience compared to conventional wines.