rice vinegar*

Rice vinegar is a mild vinegar produced through the fermentation of rice or rice wine, originating in East and Southeast Asia where it has been manufactured for centuries. The production process involves first fermenting rice into an alcohol (sake-like liquid) through the action of koji (Aspergillus oryzae), then converting this alcohol into acetic acid through acetic acid bacteria fermentation. The result is a pale golden to amber liquid with lower acidity than Western vinegars (typically 4-5% acetic acid), a delicate flavor, and subtle fruity or slightly sweet notes depending on the fermentation method and rice variety. Common varieties include unseasoned rice vinegar, seasoned rice vinegar (sugarand salt added), and black rice vinegar made from black glutinous rice, which has a deeper, more complex flavor.

Rice vinegar is fundamental to East and Southeast Asian cuisines, particularly in Japanese, Chinese, Vietnamese, and Korean cooking. It is essential in sushi preparation, where it is mixed with sugar and salt to season sushi rice; used in salad dressings, dipping sauces, and marinades; and incorporated into stir-fries, soups, and braised dishes to provide acidity and balance. The mild acidity and subtle sweetness make it suitable for delicate applications where harsh vinegars would overpower; it pairs well with seafood, vegetables, and aromatic ingredients. In pickling, it preserves vegetables while imparting a gentle tang.