Sumeshi is a seasoned sushi rice that forms the base of various sushi dishes. It is made by combining cooked rice with a mixture of rice vinegar, sugar, and salt. The vinegar adds a tangy flavor to the rice, while the sugar and salt balance out the acidity. Sumeshi is an essential component of sushi rolls, nigiri, and sashimi. It provides a sticky texture and enhances the overall taste of the sushi. With its simple yet flavorful profile, sumeshi is a key element in creating delicious and authentic sushi dishes.