new arrival insulated food warmer 4L,5L,6Lfood warmer with gold silver painting new arrival insulated food warmer4L,5L,6Lfood warmer with gold silver ... best heat retention ,pre-heat the food warmer with hot water before putting the ... warmer to be out of shape.do not put the food warmer directly on the fire source,the induction cooker of the microwave new arrival insulated food warmer ...