Which compound requires a disclaimer on wine labels for safety reasons?

The requirement for a disclaimer on wine labels specifically pertains to sulfites. Sulfites are a common preservative used in winemaking to prevent oxidation and spoilage, but they can cause allergic reactions in some individuals, particularly those with asthma. Because of this safety concern, regulatory bodies mandate that wines containing sulfites must include a statement on the label that alerts consumers about their presence. This notice is important for consumers who may have sensitivities or allergies to sulfites and helps them make informed choices about the products they consume.

In contrast, while alcohol is the primary component of wine, it does not require a specific disclaimer on labels beyond the general alcohol content information. Tannins and phenolics are natural compounds found in wine that contribute to taste and mouthfeel but are not associated with allergens or safety warnings that necessitate labeling disclaimers. Thus, sulfites stand out as the compound requiring clear communication to protect consumers’ health.