How do you use a bamboo steamer basket? Fill a wok or large flat-bottomed pan (ideally slightly larger than the steamer) with 2 inches of water and bring to a boil. Place the steamer on top, cover the bottom layer with the handily included paper liner, add dumplings, cover, and cook for the time directed. It’s that easy! How do you wash a bamboo steamer basket? Wash with mild dish soap and hot water and rinse thoroughly. Try not to let it soak, as the porous bamboo fibers can absorb off flavors and odors quickly. How do you store a bamboo steamer basket? Allow your steamer to air dry for at least 24 hours before storing, to ensure there’s no mold-baiting moisture left.