E181 – Tanni
ColouringDescription
Tannins are complex polyphenols found in various plants, characterized by their astringent taste and ability to bind with proteins.
Notes
Tannins are natural compounds found abundantly in plants, particularly in tree bark, leaves, fruits, and seeds. You've probably experienced tannins without realizing it – they're what makes red wine taste dry and astringent, and they're responsible for that puckering feeling you get when drinking strong black tea or eating unripe fruit. These complex molecules, called polyphenols, are extracted from natural sources like grape skins, tea leaves, or oak bark using water or alcohol-based solutions. In food production, tannins serve primarily as natural antioxidants and flavor enhancers, helping to prevent spoilage while adding that characteristic astringent, slightly bitter taste. You'll find them naturally occurring in red wines, teas, coffee, chocolate, and many fruits like grapes and apples. Food manufacturers sometimes add concentrated tannins to beverages, particularly fruit juices and wines, to enhance flavor complexity and extend shelf life. Since tannins come from plant sources, they're suitable for vegetarian and vegan diets and generally acceptable under most religious dietary laws. They're considered very safe – after all, humans have been consuming tannin-rich foods like tea and wine for thousands of years. Some people who are sensitive to tannins might experience headaches from red wine or find very tannic foods unpalatable, but this is a matter of personal tolerance rather than a safety concern.