Limited-Edition Arabia Summer 2020 Moomin Mug Moomin summer mug 2020 by Arabia features the Moomins' summer adventure, based on Tove Jansson's comic book Moomin Valley Turns Jungle. Size 3dl Material Porcelain Dishwasher and microwave safe Can be used in ovens and freezers Moomin Summer Mug 2020 is part of the OURSEA campaing Now, 2020 marks the 75-year anniversary of‚Ä first Moomin‚Ä book by Tove Jansson. The 2020 summer mug is involved in the #OURSEA campaign organised by Moomin Characters to raise one million euros for the sea conservation. From every mug sold 1€ will be donated to John Nurminen Foundation, a maritime organization with a mission to save the Baltic Sea and its heritage for future generations. Arabia mugs are dishwasher safe except dishes decorated with gold or platinum. Use a rinsing agent in the dishwasher to improve the results, to maintain the color and glaze on the dishes. Very dirty dishes can be soaked in hot water with detergent. Rinse dishes before placing in dishwasher.