Sushi vinegar, also known as "sushizu" in Japanese, is an essential ingredient in the preparation of sushi rice. It is a blend of rice vinegar, sugar, and salt, offering a unique balance of sweetness, acidity, and a hint of saltiness.
Chefs use sushi vinegar to season sushi rice, giving it a subtle tang and a slight sweetness, which complements the freshness of the fish and other toppings, and is crucial for achieving the perfect flavor and texture in sushi.