Dish rack care in 6 steps: empty the tray, hand-wash and dry
Dish racks need attention too: drain standing water, follow plastic or metal care labels, and let everything dry.
Water can sit in the tray even after the dishes dry. IKEA specifies hand washing for its polypropylene RINNIG drainer; for its stainless KUNGSFORS rack, it recommends a cloth with mild cleaner and a dry finish. Use this sequence as a general guide, with your product manual taking precedence.