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Liquid Ice Machine Cleaner

• Rapid scale remover
• Highly concentrated
• For use in food areas
• Formulated for use in all makes and models
of ice makers
• Functional in cubers, flakers, drum and
tube machines
• NSF Registered


Liquid Ice Machine Cleaner is a 75% phosphoric acid of the highest food-grade quality. Because of its 75% phosphoric acid content, it is the most concentrated ice machine cleaner in the market. Usage rate is 3 fluid ounces with one gallon of water. The number one category of problems troubling an ice machine are water-related, and the most frequent problem is lime scale. As the water is frozen into ice during an ice maker’s cycle, the naturally occurring dissolved minerals in the water, some of which can combine to form lime scale, remain behind in the unfrozen recirculating ice water simply because water tries to freeze in its pure state. As the cycle continues and more water is made into ice, the minerals over concentrate and eventually precipitate as a lime scale deposit. As the scale begins to form, it creates a physical obstruction that results in: plugged distribution holes, restricted water flow and eventually the ice maker will hang-up or jam. Ice harvest is reduced and eventually the machine will shut down, requiring service. Once the machine is scaled up, it must be cleaned, requiring the use of an acid so that the scale can be dissolved. The acid must be effective in order to dissolve the scale but it must also be food grade and equipment-safe.

Packaging Size Part Number Additional Info
55 gallon drum 4207-01
236 ml bottle (Canada) 4834-C7
1 gallon bottle 4207-08
3.78 liter bottle (Canada) 4834-08
8 oz bottle 4207-47


This product must be used in accordance to the following directions by HVACR professionals only.


1. Leave ice machine pump in operation but turn off

2. Drain unit and refill with fresh water.

3. Add Liquid Ice Machine Cleaner to water in unit. Use
8 fluid ounces for up to 3 gallons of water, or one fluid
ounce of product for every 48 fl. oz. (3 pints) of water.

4. Allow cleaner to circulate for about 30 minutes. If
solution does not contact all scaled surfaces use a
brush to get cleaning solution to those parts. If scale is
extra heavy, another dose of cleaner may be necessary.
Ice machine drums may be cleaned by adding bottle
of cleaner to a glass or plastic container holding two
quarts of water and brushing the solution on the scaled

5. After scale has been removed, drain out all the water
and flush thoroughly with fresh water.

NOTE: DO NOT use on nickel plated or galvanized surfaces. On these surfaces, you should use Nu-Calgon’s Nickel-Safe Ice Machine Cleaner. Do not mix with chlorine bleach.

Product Information:

Literature Downloads

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Product Safety

RTK Information

2611 Schuetz Rd. St. Louis, MO 63043
  • Telephone: 800.554.5499
  • Email:
  • Hours: Mon–Fri: 8:00am - 5:00pm (Central Time)

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