Japanese Kitchen Cooking Wooden Drop Lid Pot Cover Ceda Wood Otoshi-Buta 20cm (20cm (7.9")) Fragrant pot cover of solid cedar wood provides even heat distribution Use to cover or drop into pots. Float on surface to keep soups from boiling too much Protects fragile ingredients from over-cooking Wash and dry before storing. Soak in water for 20 minutes before using, to preserve flavor of the food