Contemporary color and pattern help offset this table's traditional lines. Clean and dry the surface, then sand with 400-grit sandpaper. Wipe with a tack cloth; prime and paint, letting dry between coats. For the sunburst design, start at the edge of the table and use painter's tape to tape off angles. Paint with oil-base enamel colors using a stencil brush; remove tape when dry. For a glossy sheen, spray on a lacquer top coat./
How Do I Clean the Stains Off My Le Creuset Dutch Oven? — Good Questions
Cleaning stains off enamel coated dutch oven: La Creuset recommends: 1 part Tide, 3 parts water. Bring to a boil for 5 minutes (this makes the house smell lovely too!) Wash with soap and water. Dry and then use a dry cloth dipped in white vinegar to buff. Vinegar brings back the sheen on enamel.