Wash the rice until the water runs clear, strain and drain well. Wash the peppers, remove the stem, cut open lengthways, unfold, core, lengthways into thin threads and cut them crossways into small cubes. Weigh frozen goods and allow to thaw (approx. 10g). Freeze the remaining cubes. Wash the fresh celery, pluck the flawless leaves and freeze them deeply. Cut the flawless stems crosswise into pieces approx. 3 mm wide. Weigh the required amount and freeze the rest. Measure frozen goods and allow to thaw.