Hotaru Unseasoned Rice Wine Vinegar is savory, soft in its acidity, and has a natural subtle sweetness to it. Cherished for its natural sweetness and mild acidity, Unseasoned Rice Wine Vinegar by Hotaru can be used for many recipes, and is a fundamental ingredient for many Japanese dishes. With a 4.3% Acidity, Hotaru's Unseasoned Rice Wine Vinegar is all natural and has no salt or added sugar.