Choosing an Ice Machine Cleaner and Sanitizer

Commercial ice machines

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Updated October 14, 2026

Quick answer

Use the cleaner and sanitizer your ice machine's manufacturer approves, mixed at the stated strength. Evaporators on many cube machines are plated, and the wrong acid can strip the plating and ruin the most expensive part of the machine. 'Nickel-safe' cleaners are made for those plated evaporators.

Why the brand's cleaner matters

Manufacturers test their cleaners against the metals and plastics in their machines. Manitowoc's maintenance instructions, for example, name Manitowoc's own cleaner/descaler and sanitizer as the only products approved for its ice machines. Hoshizaki's cleaning sheets warn against ammonia-type cleaners and specify the products and mixing ratios to use. Following the sheet protects the machine and keeps the cleaning consistent with what the manufacturer considers proper maintenance.

What 'nickel-safe' means

Many cube evaporators are nickel-plated (or tin-plated) copper. Strong acids or the wrong concentration can etch that plating. Once the plating is damaged, ice sticks, harvests slow, and the evaporator may need replacement. Cleaners labeled nickel-safe are formulated for plated evaporators. If your manual names a specific cleaner, use that; nickel-safe on the label is not a substitute for checking the manual.

Products to avoid

Ammonia-based cleaners (Hoshizaki's sheets warn they can damage the icemaker).
General-purpose descalers not listed for ice machines.
Abrasive pads and scrapers on the evaporator.
Mixing cleaner and sanitizer together, or using more than the stated strength.

Safety

Ice machine cleaners are acids. Wear the gloves and eye protection the label requires, ventilate the area, and keep cleaner away from the ice bin during a clean cycle unless the procedure says otherwise. Discard any ice made during cleaning.

How often

Follow the manufacturer's interval. Too-frequent acid cleaning can also wear parts, so more is not always better. Hard water, slime or a hot location justify a shorter interval; see hard water and what the health code requires.

What each brand specifies

Brand	Cleaner and sanitizer guidance
Manitowoc	Manitowoc Ice Machine Cleaner/Descaler and Sanitizer are the only approved products
Ice-O-Matic	Nickel-safe cleaner and the approved sanitizer; do not mix; clean no more than monthly
Follett	Follett-specified cleaner and its sanitizer for machines and dispensers
Hoshizaki	Products and ratios per model sheet; no ammonia-type cleaners
Scotsman	Scotsman-approved cleaner and sanitizer per the user manual

Step by step: a safe clean cycle

Read your model's cleaning instructions end to end first.
Put on gloves and eye protection.
Empty the bin and discard ice; protect it if the procedure says so.
Start the machine's clean mode and add cleaner at the stated amount.
Rinse as directed, then run the sanitize step separately.
Return the machine to ICE mode and discard the first batch if instructed.
Log the date and products.

Signs the wrong chemical was used

Dull, discolored or peeling evaporator surface.
Ice sticking where it used to release easily.
Cracked or cloudy plastic parts.
Foam that will not rinse away.

If you see these, stop and have a technician inspect the evaporator.

Descaler vs sanitizer vs cleaner

Product type	Job	When
Ice machine cleaner / descaler	Removes mineral scale	Every scheduled clean; more often on hard water
Sanitizer	Reduces microbes on food-contact surfaces	After cleaning, every scheduled clean
Mild detergent	Exterior and some removable parts	As the manual allows

Hard water makes the choice matter more

On very hard water (Zone 7 groundwater averaged 318 mg/L in 2025) you descale more often, so the cumulative effect of the cleaner on the evaporator plating matters more. That is exactly when sticking to the approved, nickel-safe product pays off. See hard water by area.

What our technicians use

We carry the products each manufacturer approves and match them to the machine in front of us. We also log what was used so your next cleaning is consistent. See ice machine cleaning service.

Storage and handling

Keep cleaner and sanitizer in their original labeled containers, away from food and ice.
Never store chemicals on top of or inside the ice machine or bin.
Keep the safety data sheets where staff can find them.
Do not mix products; some combinations release harmful gases.

When to call a pro instead

Heavy scale that a normal clean cycle does not remove, slime behind panels, or any sign of evaporator damage needs a technician. Repeated strong-acid cycles to fight heavy scale can do more harm than one professional descale. See cleaning service.

Brand notes in practice

Manitowoc is strict: its maintenance instructions name only its own cleaner/descaler and sanitizer. Ice-O-Matic calls for nickel-safe products and warns against cleaning more than once a month. Hoshizaki's sheets spell out products and ratios per model and rule out ammonia-type cleaners. Follett names its own sanitizer. When a manual names a product, that is the product to use.

Keep the log

Record the date, product, who cleaned and anything unusual. A log supports warranty claims and health inspections, and shows whether your interval matches your water.

When to call a technician

If you are unsure which product fits your model, or scale is heavy enough that a normal clean cycle does not remove it, have a technician do a full descale.

Open 7 days, 8 AM to 5 PM, with emergency service until 9 PM. CA Lic. #776244.

Call 1-800-266-5243 Request service online

Frequently asked questions

Can I use vinegar to clean an ice machine?

It is not an approved cleaner for commercial machines and may not remove scale fully. Use the product your manual names.

What is a nickel-safe ice machine cleaner?

A cleaner formulated not to damage nickel-plated evaporators. Check your manual before choosing one.

Is one brand's cleaner OK in another brand's machine?

Only if the machine's manufacturer approves it. Some, like Manitowoc, approve only their own products.

Does the wrong cleaner void the warranty?

Read your warranty terms. Manufacturers generally exclude damage caused by improper maintenance or chemicals.

Can I use a nickel-safe cleaner in any machine?

Only if that machine's manufacturer approves it. Check the manual first.

Is ice machine cleaner dangerous?

It is an acid. Wear the gloves and eye protection the label requires and keep it away from food and ice.

Related guides

Sources

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