An Easy Guide to Hoshizaki Ice Machine Cleaning

Reading Time: 5 minutes Food/Ice Safety, Ice Machine Care

Hoshizaki ice machine cleaning

Keeping your ice machine clean is vital if you want to keep a safe ice supply. Following proper Hoshizaki ice machine cleaning processes includes not only disinfecting your ice machine but sanitizing it as well. Disinfecting and sanitizing help to keep the machine producing at max capacity. Unwanted dirt and grime can cause a dirty ice machine to overheat – slowing down your ice production rate.

Cleaning an ice machine involves not only washing away dirt and grime, but disinfecting and sanitizing the area as well. Disinfecting is the process of using chemicals to kill microorganisms like bacteria, viruses, and fungi, then rinsing the solution away. Sanitizing uses a lower concentration of chemicals to drop the number of bacteria to federally recognized health standards.

How to Clean Your Hoshizaki Ice Machine Bin

Your ice bin is responsible for holding your ice supply until someone needs it. Since no one wants dirty ice, cleaning your ice bin is of the utmost importance – and that starts with disinfecting the machine.

Ice bins are susceptible to mold and slime. Mold and slime love dark, moist environments where they can feed off of dust and yeast in the air. Unfortunately, ice storage bins provide the perfect environment for these growths.

A Hoshizaki ice bin consists of an outside frame made of vinyl or stainless steel and a polyurethane interior. The interior liner is treated with antimicrobial agents to help limit mold and slime growth. However, they still need routine cleaning to maintain a safe ice supply.

The FDA has a list of food grade cleaners you can use when cleaning your ice bin. They work to clean mold and slime that have formed.

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How Do I Disinfect My Ice Bin?

  1. Use a spray bottle to saturate the contaminated surfaces
  2. Wipe the areas to remove the debris and make sure to rinse the area well

How Do I Sanitize My Ice Bin?

  1. Once you’ve wiped the bin down after disinfecting, reapply the solution to sanitize
  2. Leave the mixture to air dry

How to Clean Your Hoshizaki Ice Maker’s Exterior

A Hoshizaki ice maker is made of stainless steel, which keeps it looking clean. However, microorganisms that you can’t see can still contaminate your ice supply.

Disinfecting and sanitizing the exterior of your Hoshizaki ice maker weekly will help to reduce food-borne contaminants that can make customers or staff sick.

While quat-based cleaners can help, a diluted solution of bleach and water is just as effective. When diluting bleach, follow the instructions on your brand’s label.

Whatever you do, DON’T mix bleach with other cleaners. The combination can produce harmful, toxic fumes that can cause respiratory issues.

How Do I Disinfect My Ice Maker’s Exterior?

Here’s how you disinfect the exterior of your Hoshizaki commercial ice maker:

  1. Pre-wash any soiled area with warm water
  2. Wipe the area with the quat-based cleaner or bleach solution
  3. Let the solution sit for at least 5 minutes
  4. Rinse the area with water and let air

How Do I Sanitize My Ice Maker’s Exterior?

  1. To sanitize further, wipe the area with a bleach mixture of 2 teaspoons of bleach to one gallon of water
  2. Let air dry

How to Clean Your Hoshizaki Ice Maker’s Evaporator

Evaporators are susceptible to scale, which is caused by hard water in your ice maker.

Hoshizaki makes their evaporators out of stainless-steel. Where other brands require a nickel-safe cleaner, Hoshizaki’s stainless-steel evaporators are durable and able to hold up to harsh cleaners. Here at Easy Ice, we recommend using Nu-Calgon Ice Machine Cleaner or Duda Food Grade 85% Phosphoric Acid.

Since Hoshizaki evaporators are made of high-grade stainless-steel, it’s not convenient to open the plate and scrub out the inside. Still, there is a convenient way to disinfect a Hoshizaki evaporator.

How Do I Disinfect My Hoshizaki Evaporator?

  1. Remove all ice from the bin
  2. Open the front panel of the ice machine and set the machine to “off.”
  3. Remove the water pump tube to the right of the sump. This will drain the water into the bin. After the sump drains, replace the tube.
  4. Many KM units have a cleaning valve. If so, you’ll need to open this valve. (note: you’ll need to close this valve after cleaning, or the ice machine won’t make ice)
  5. Turn your ice machine to the “wash” setting. KML units have another toggle switch that you’ll need to turn to “service.”
  6. As the water begins to run, add your cleaner to the sump. The amount of cleaner differs depending on the model. Check your model’s care guide for details.
  7. Run the wash cycle for 30 minutes and set the machine back to “off” and remove the water pump tube again to drain the sump.
  8. Set the machine to “ice” and wait 3 minutes. Set to off and drain the sump by removing the tube. Do this 3 times.
  9. Set the ice machine to “ice” and discard the first batch of ice the machine produces.

How Do I Sanitize My Hoshizaki Evaporator?

To sanitize your Hoshizaki evaporator, you can follow the same process you used to disinfect it. The only difference is that you will not use the same phosphoric cleaners as you did to disinfect it. Instead, a diluted mixture of bleach like Clorox Regular Bleach2 and water.

The concentration of bleach to water is about 2 teaspoons per gallon of water your sump holds. So, an ice machine with a 3-gallon sump will need a mixture of 3 gallons of water and 6 teaspoons of bleach (about 1 oz).

Make sure you do not skip the 8 and 9 during the disinfecting process. You don’t want the cleaners you used to disinfect the machine to mix with the bleach sanitizer, which can create toxic fumes.

You Still Need Professional Hoshizaki Ice Maker Cleaning

In addition to following a routine ice machine cleaning schedule, ice machines need professional cleaning, ice machine service, and ice machine repair. While routine cleaning will help keep your ice machine clean, a professional ice machine technician will dismantle the machine to disinfect and sanitize each component. Professional Hoshizaki ice machine cleaning is the best way to get rid of pesky scale that regular cleanings can’t clean.

You should aim to get at least two professional cleanings a year. If your ice machine is installed in a workplace with a lot of airborne yeast, like a bakery or brewery, you’ll likely need more cleanings. Professional cleanings will not only help to keep your ice supply clean but also keep your ice machine running in peak condition.

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