3 grams. Sushi has requirements on the quality and quantity of rice. Generally, rice is soaked for more than two hours. Take 3 grams of steamed rice, and take about 2-3 grams of cooked rice for each sushi, and then mix with other materials and condiments to make a complete sushi. Sushi is one of the most world-famous foods in Japanese food culture. It not only has a thousand-year-old history, but also is increasingly loved by people all over the world.