To use an oroshiki, clean your wasabi (or other firm vegetable or fruit) by trimming off any leaves, stems, or damaged tough parts. Peeling is optional though it will allow for a smoother creamier paste. Place the oroshiki on a secure flat surface with a wet tea towel to prevent any movement or slipping during grating. To grate the wasabi, place it at a slight angle on the textured surface of the grater and run it in gentle but firm circular motions. This will ensure a smooth texture in the paste. Collect the paste with a small stiff brush like our Bamboo Oroshiki Scraper Brush and serve immediately for maximum flavour. To clean a single or double-sided oroshiki, hand wash using a gentle soap detergent, warm water, and brush to clean out any left behind fibres or pulp. Air dry thoroughly before storing in a dry place.