Rinse the Cal Rose rice under cool water until the water runs clear. Add drained rice to a hotel pan with 8 cups of room temperature water. Cook in the large Alto Shaam steamer steam cycle, 250° for 35 minutes. Remove from steamer and allow to cool to room temperature.
In a small sauce pan combine rice vinegar and sugar and bring to a simmer. Allow to cool to room temperature.
For vinegar mixture over cooled rice and fold rice softly. Do not over mix rice to cause clumping. The rice is now ready to roll the sushi.