Clean an ice cube maker by unplugging it, discarding all ice, draining water, and washing removable parts with a mild cleaner or the maker-approved solution.
Ice cube makers build up scale and slime over time, and cleaning protects both the machine and your health. The exact process depends on the maker you own, because countertop portables, built-in refrigerators, and commercial units each use different procedures and chemicals. Before you touch anything, unplug it and shut off the water supply if it’s connected. Then pull out any removable bins and trays, dump the old ice, and wash them by hand with warm soapy water.
The Universal Cleaning Steps That Work for Most Makers
Most home ice cube makers follow the same basic sequence regardless of brand. Start by disconnecting power and water. Empty the ice bin completely, wash the bin and any removable parts in warm water with dish detergent, rinse well, and air-dry everything before reassembling. For the interior, wipe down the liner with a soft cloth dampened with warm water and baking soda — about 1–2 tablespoons per quart — then rinse and dry.
Two things matter more than anything else. First, never use abrasive detergents, metal sponges, solvents, or boiling water, since these can scratch plastic surfaces and ruin the finish. Second, always drain the water completely before adding any cleaner; if you skip this, the old water dilutes the cleaning solution and makes it far less effective. A soft plastic-bristle brush and a sponge are the safest tools for removing sediment and buildup.
Countertop Portables: GE Opal and Similar Models
Countertop nugget and portable makers like the GE Opal need periodic descaling because mineral scale builds up fast.
For the outside of the Opal, wipe it with a soft cloth dampened with soapy water. Do not use chemicals or solvents on the exterior. These instructions apply to that specific Opal model family, so if you own a different countertop maker, check the manual before mixing any solution. Some portable makers permit a 10% vinegar-and-water mix for general cleaning instead of bleach, so your manual is the final authority.
Built-In Refrigerator Ice Makers: Whirlpool and Similar Brands
Built-in ice makers in refrigerators follow a different routine.
If your manual says internal sanitizing must be done by a service center, don’t DIY it — some components are restricted precisely because improper chemical use can contaminate ice.
Commercial Units: The ICE-O-MATIC Approach
Commercial ice machines require a stricter procedure because they produce ice for food service. The ICE-O-MATIC method starts with turning off the water supply, removing the front panel, and switching ICE/OFF/WASH to WASH to purge the water. Then mix an approved nickel-safe ice machine cleaner per the manufacturer’s instructions and circulate it for roughly 15 minutes. The cleaner must be approved nickel-safe — standard descalers can corrode the metal plates.
Public-health guidance on cleaning commercial ice machines stresses discarding all old ice before sanitizing and using only approved chemical agents. For a home unit, the takeaway is simpler: always check whether your manual mandates a specific cleaner before substituting vinegar or detergent. If you’re shopping for a new countertop maker and want one that’s easy to maintain, our roundup of the best cube ice makers compares cleaning ease across models.
One last rule that saves a lot of frustration: never treat one brand’s procedure as universal. The GE Opal, Whirlpool, and ICE-O-MATIC routines above are materially different because the machines are different. When in doubt, the manual that came with your unit wins every time.
References & Sources
- GE Appliances. “Opal Ice Maker – Cleaning and Descaling.” Official GE procedure for Opal models with no round reservoir.
- ICE-O-MATIC. “ICE Series Cleaning and Sanitizing.” Commercial cleaning procedure requiring nickel-safe cleaner.
- Safe Ice. “How to Clean a Commercial Ice Machine.” Public-health guide on discarding ice and using approved sanitizers.