Acidic additives are substances added to food and beverages to enhance flavor, preserve freshness, or adjust acidity levels. Common examples include citric acid, acetic acid, and tartaric acid. These additives can help prevent spoilage by inhibiting the growth of harmful bacteria and molds. In addition to their preservative qualities, acidic additives can improve the taste of products by providing a tangy or sour flavor. They are often found in items like pickles, sodas, and candy. The use of these additives is regulated to ensure safety and proper labeling in food products.