Cleaned and sanitized items should always be

URL of this page: https://medlineplus.gov/cleaningdisinfectingandsanitizing.html

Germs are a part of everyday life. Some of them are helpful, but others are harmful and cause disease. They can be found everywhere - in our air, soil, and water. They are on our skin and in our bodies. Germs are also on the surfaces and objects that we touch.

Sometimes those germs can spread to you and make you sick. For example, there could be germs on a tv remote. You could get infected with the germs if you touch the remote and then rub your eyes or nose or eat with your hands.

How can I avoid getting germs from surfaces and objects?

To avoid becoming infected by germs from surfaces and objects, it is important to wash your hands often. But you can't wash your hands every time you touch something. So it's also important to regularly clean and disinfect surfaces and objects.

What is the difference between cleaning, sanitizing, and disinfecting?

Some people think that disinfecting is same thing as cleaning or sanitizing. But they are actually different:

  • Cleaning removes dirt, dust, crumbs, and germs from surfaces or objects. When you clean, you will likely use soap (or detergent) and water to physically clean off the surfaces and objects. This may not necessarily kill the germs. But since you removed some of them, there are fewer germs that could spread infection to you.
  • Disinfecting uses chemicals (disinfectants) to kill germs on surfaces and objects. Some common disinfectants are bleach and alcohol solutions. You usually need to leave the disinfectant on the surfaces and objects for a certain period of time to kill the germs. Disinfecting does not necessarily clean dirty surfaces or remove germs.
  • Sanitizing could be done by either cleaning, disinfecting, or both. Sanitizing means that you are lowering the number of germs to a safe level. What is considered a safe level depends on public health standards or requirements at a workplace, school, etc. For example, there are sanitizing procedures for restaurants and other facilities that prepare food. What you do to sanitize will vary, depending on your needs. You might be mopping a floor using a mop, a chemical, and water. You might use a dishwasher to sanitize the dishes. Or you could be using an antibacterial wipe on a tv remote.

If you both clean and disinfect a surface or object, you can further lower the risk of spreading infection. There are products that clean and disinfect at the same time.

Which surfaces and objects do I need to clean and disinfect?

To prevent the spread of infection, you should regularly clean and disinfect surfaces and objects that are touched often. For example, in your house, this would include countertops, doorknobs, faucet and toilet handles, light switches, remotes, and toys.

How can I safely clean and disinfect?

It's important to be safe when using cleaning and disinfecting products:

  • Store them in the containers they came in. Always follow the instructions and pay attention to the warnings on the label.
  • Do not mix cleaners and disinfectants unless the labels say that it is safe to do so. Combining certain products (such as chlorine bleach and ammonia cleaners) can cause serious injury or even death.
  • Check the label to see whether you need to use gloves to protect your hands and/or eye protection when using the products
  • If you swallow, inhale, or get them on your skin, follow the directions on the label or get medical help
  • Store them out of the reach of children

The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health.

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Clean and sanitary tableware is as fundamental to restaurants as a menu. When used properly, three compartment sinks help restaurants stay up to health code standards. However, you must train your staff to follow all the steps in the three sink method. Noncompliance with three compartment sink rules can lead to food-borne illnesses, hefty fines, and, at worst, restaurant closures. To help prevent these damaging consequences, we’ve created a guide explaining how to use your three compartment sink correctly.

Shop All Three Compartment Sinks
Cleaned and sanitized items should always be

The three sink method is the manual procedure for cleaning and sanitizing dishes in commercial settings. Rather than providing additional workspace to perform the same function, the three compartments allow kitchen staff to wash, rinse, and sanitize dishes. Each step has its own set of rules and requirements.

The three sink method predates commercial dishwashers and is a reliable, FDA-approved way to clean commercial dishware, cookware, and kitchen utensils. Since not all utensils and cookware items are dishwasher safe, and many large pots won't fit in dishwashers, three compartment sinks remain essential to foodservice establishments.

Important: Never use your three compartment sink for anything other than cleaning, rinsing, and sanitizing dishes. Do not permit hand washing or the dumping of mop water in your three compartment sink.

3 Compartment Sink Order

The FDA requires commercial foodservice establishments to both clean and sanitize their dishes in their manual washing process. Three compartment sinks have a logical order to help you properly clean and sanitize dishes. While those who misunderstand the terms use them interchangeably, cleaning and sanitizing refer to two separate functions. Cleaning is the act of removing surface debris, and sanitizing is the act of using a chemical agent or hot water to kill invisible bacteria. Label each sink to help staff remember the FDA required three compartment sink order.

  • Sink 1 = Wash
  • Sink 2 = Rinse
  • Sink 3 = Sanitize

Three Compartment Sink Steps

Cleaned and sanitized items should always be

While there are only three sinks, there are five essential steps you need to complete when using your three compartment sink. We’ve outlined the five steps in the manual commercial dishwashing method below so you can adhere to the FDA’s three compartment sink rules.

  1. Remove food: Scrape leftover food off the dishes.
  2. Scrub: Use the first sink to scrub the dishes in soapy, warm water (minimum temperature of 110 degrees Fahrenheit required).
  3. Rinse: Use the second sink to rinse the dishes in clean, warm water (minimum temperature of 110 degrees Fahrenheit).
  4. Soak: Use the third sink to soak the dishes in a chemical sanitizing solution. Refer to the directions provided by your chosen sanitizer to determine how long the dishes need to remain submerged. Alternately, you can use hot water at 171 degrees Fahrenheit or hotter instead of sanitizing chemicals. If you choose to sanitize in hot water, leave the dishes sitting in the scalding water for a minimum of 30 seconds.
  5. Dry: Always air-dry the dishes. Otherwise, you risk recontamination.

Important: Replace the water whenever it appears dirty.

Water Temperature in a Three Compartment Sink

The required water temperature in a three compartment sink depends on the sink you’re filling. The water in the first and second sink needs to be a minimum of 110 degrees Fahrenheit to meet the FDA requirements. If you plan to use water in your third sanitizing sink, the water must be 171 degrees Fahrenheit or hotter. Check with your local health guidelines to make sure you’re adhering to regional requirements.

Important: Use a thermometer to check the water temperature.

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What Sanitizer Is Commonly Used in the Three Sink System?

Cleaned and sanitized items should always be

The most commonly used sanitizer in the three sink system is chlorine bleach because it’s the cheapest option. You can purchase regular bleach, dilute it to 50 or 100ppm, and use it in your three compartment sink. Other popular sanitizer options for three compartment sinks are quat (QAC) and iodine.

Important: Protect your employees by outfitting them with dishwashing gloves.

3 Compartment Sink Sanitizer Temperature

Each of the commonly used chemical sanitizers has a unique temperature requirement. Whichever sanitizing solution you choose, you must leave the dishes submerged in the sanitizer for at least one minute. Check your local health guidelines to comply with their specific sanitizer soak time stipulations.

  • Chlorine Solution = 75-120 degrees Fahrenheit
  • Quaternary Solution = 75-90 degrees Fahrenheit
  • Iodine Solution = 75 degrees Fahrenheit

When Is It Essential to Clean and Sanitize a Utensil?

From utensils to kitchen sheers, you must clean and sanitize every surface that interacts with food items after four hours of use. However, there are additional requirements that increase cleaning and sanitizing frequency. We break down when you need to clean and sanitize utensils and kitchen tools below.

  • Every item used requires cleaning and sanitation.
  • If your food prep task is interrupted, clean and sanitize your tools when you return.
  • Clean and sanitize when you switch to a new food item (ex. chopping vegetables to working with raw meat).
  • Every surface that interacts with food items must be cleaned and sanitized after every four hours of use.

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3 Compartment Sink Procedure Review

Cleaned and sanitized items should always be

Now that you’ve learned all about three compartment sink rules and the steps you need to take to comply with them, it’s time to test your knowledge. Answer the questions below to see if you’re ready to use your three compartment sink or if you need to review this resource some more.

  1. Dumping mop water
  2. Hand washing
  3. Thawing meat
  4. All the above

Click to Reveal Answer

4. All the above. Only use your three compartment sink to wash, rinse, and sanitize dishes.

  1. Rinse, Wash, Sanitize
  2. Wash, Rinse, Sanitize
  3. Sanitize, Wash, Rinse

Click to Reveal Answer

  1. 180 degrees Fahrenheit
  2. 160 degrees Fahrenheit
  3. 110 degrees Fahrenheit

Click to Reveal Answer

3. 110 degrees Fahrenheit

  1. Rinsing dishes
  2. Washing dishes
  3. Sanitizing dishes

Click to Reveal Answer

  1. Disinfectant
  2. Soap
  3. Sanitizing solution

Click to Reveal Answer

  1. Clean warm water
  2. Soapy water
  3. Sanitizer

Click to Reveal Answer


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When used correctly, three compartment sinks are a reliable way to clean and sanitize commercial dishware, cookware, and kitchen utensils under the FDA’s standards. While our guide is a helpful resource for understanding the basic three compartment sink rules, please check with your local guidelines for any additional requirements.