Made primarily of citric acid anhydrous which exists in all plants, especially in lemons and limes. Removes any stubborn residue remaining in the boiling tank, and also great for other household water scaling problems, (coffee pots, tea kettles, etc.)
Cleaning Instructions: Fill 1.5 gallon stainless steel boiling chamber with water to fill line as normal and add 1 1/2 - 3 tablespoons of cleaner. Leave top lid OFF and turn unit on until water just begins boiling. Turn unit off and wait 20 minutes to 1 hour depending on amount of water scale. Use the drain valve to discard water and rinse interior well.