️ Do not clean the ice cube trays with strong detergent in case they get corroded. ️ Keep these ice cube trays away from fire sources in case they get distorted. ️ Do not use metal brush to clean these ice cube trays. ️ Please wipe out the trays with soft cloth. ️ You'd better not add too much water in case the ice and the cover sticking together. ️ After freezing, please give icy tray a twist to loosen the cubes, then place the tray in a large freezer bag and pop each cube out.