Mirin is a traditional Japanese sweet rice wine used primarily in cooking to add sweetness, gloss, and umami flavor to dishes. It is produced through a fermentation process involving steamed rice, koji (Aspergillus oryzae), and yeast. The resulting product contains approximately 40-50% sugars, 14% ethanol, and various amino acids and organic acids that contribute to its characteristic taste. Unlike sake, mirin has a higher sugar content and lower alcohol level, making it suitable for culinary applications rather than drinking. It helps in tenderizing meats and balancing flavors in sauces and marinades. As a complex mixture rather than a single compound, it lacks a defined chemical formula or molecular weight.