Citron is a large aromatic citrus with thick rind prized for its fragrant zest and pulp. Commonly used in marmalade, confectionery, baking, and savory recipes. Sold individually for home and professional kitchens; handle gently, refrigerate short-term, and use the rind or peel in recipes that call for intense citrus flavor. Store in a cool, dry place or refrigerate to extend freshness. Use within a week for best flavor.