Naturally effective limescale descaler use to protect and descale your washing machine dishwasher coffee maker kettle and taps also effective on stubborn stains including rust burns and tea practical metal pouring spout cardboard box without plastic bag inside how to use to decalcify your coffeemaker or kettle mix 2 tablespoons in a litre of water switch the appliance on so that the mixture is distributed through the machine to descale your washing machine or dishwasher pour 6 to