<human>:  How can I make perfect sushi rice?
<bot>: To make perfect sushi rice, start with a high-quality short grain rice such as a Calrose or Koshihikari variety. Rinse the rice several times to remove any dust or impurities. After rinsing, let the rice soak in cold water for at least 30 minutes. This helps to ensure your rice is fluffy and not clumpy. Then, cook the rice according to the instructions on the package, or using a rice cooker. Once cooked, gently fold in a mixture of rice vinegar, sugar, and salt until the sugar and salt have dissolved completely. Allow the rice to cool before using it to make sushi.