Sanitizing vs Disinfecting vs Cleaning Explained

Three words get used as if they were one, and the labels do not help. One spray says it cleans, another says it sanitizes, a third says it disinfects, and all three sit on the same shelf. At Homecourt we make a cleaner, so we spend a lot of time explaining where cleaning ends and the other two begin.

They are three different jobs, done in a fixed order, and most homes need only the first one most of the time. Our definitions come from the EPA, which registers sanitizers and disinfectants, and the CDC, which says when a home needs them.

The short answer

Cleaning removes dirt and most germs with soap, water and scrubbing, and it is all most surfaces need most days. Sanitizing lowers bacteria to a level public health codes consider safe and is meant for food contact surfaces. Disinfecting kills most viruses and bacteria with an EPA-registered product left wet for its full contact time. Clean first, every time, the CDC says, and sanitize or disinfect only when there is a reason to.

Chapter 01

Disinfect vs sanitize verdict

Clean every day, disinfect when someone is sick

Cleaning with soap and water removes most germs on its own
Sanitizing is for food contact surfaces, after cleaning
Disinfecting kills viruses and bacteria, after cleaning

Nearly every disinfect vs sanitize debate skips the step that does most of the work. Cleaning alone removes most harmful viruses and bacteria from a surface, according to the CDC, which adds that sanitizing or disinfecting at home is likely not needed unless someone in the house is sick.

Think of the verdict as a sequence. Clean regularly. Sanitize the counter after raw chicken. Disinfect when a stomach bug is going around.

A Homecourt Surface Cleaner handles the first job. It is not a sanitizer or a disinfectant, and we do not claim it is.

Key takeaway

Clean daily · Sanitize after raw meat · Disinfect during illness. Always clean before you sanitize or disinfect.

Chapter 02

Cleaning vs sanitizing vs disinfecting at a glance

Who regulates what & what each one kills

Put in a table, the difference between cleaning sanitizing and disinfecting comes down to three verbs. Cleaning vs sanitizing is removing germs versus reducing them with a chemical. Cleaning vs disinfecting is removing germs versus killing them.

Only the last two are regulated. Sanitizers and disinfectants are registered by the EPA as antimicrobial pesticides, and the agency checks that they do what the label says. A cleaner falls under no such rule unless it claims to do more than clean, which is why the words on its label deserve a close read. Our guide to what non-toxic really means explains them.

	Cleaning	Sanitizing	Disinfecting
What it does	Removes dirt, grime and most germs	Lowers bacteria to a level public health codes call safe	Kills most viruses and bacteria left on a surface
What you use	Soap or detergent, water and scrubbing	An EPA-registered sanitizer or a weak bleach solution	An EPA-registered disinfectant or a stronger bleach solution
Regulated by	Nobody, unless it claims to sanitize or disinfect	EPA, as an antimicrobial pesticide	EPA, as an antimicrobial pesticide, to a higher bar
Kills viruses	Removes them rather than killing them	Not intended to	Yes, when used for the full contact time
Comes first	Always	After cleaning	After cleaning
How often at home	Regularly, and after visitors	After raw meat, a recall or a flood	When someone is sick or immune-compromised

Chapter 03

Sanitizing vs disinfecting side by side

Five terms, read the way the agencies define them

Sanitize vs disinfect is a question of degree, and sanitizing vs disinfecting products are tested to different standards. According to the EPA guide to disinfecting vs sanitizing, sanitizers kill bacteria and are not intended to kill viruses, while disinfectants kill both and must clear a higher bar in testing. For what is inside these products, see our guide to common chemicals in cleaning products.

Cleaning: What cleaning removes from surfaces

Cleaning removes dirt, grime and most germs from a surface with soap or detergent, water and some scrubbing. It does not necessarily kill anything. Germs get lifted off and rinsed away, which is why the CDC calls cleaning the important first step.

Sanitizing: What sanitizing means on food contact surfaces

Sanitizing reduces bacteria on a surface to a level that public health codes or regulations consider safe, the standard restaurants work to. At home it belongs on food contact surfaces: the counter and the inside of the sink after raw meat, poultry or their juices, refrigerator shelves after a recall, anything that got wet in a flood.

A food contact surface sanitizer is either an EPA-registered sanitizing product or a weak bleach solution, applied after the surface has been washed with hot, soapy water. Daily sanitizing may not be necessary, the CDC notes, if surfaces are cleaned carefully after use.

Disinfecting: What disinfecting means on hard surfaces

Disinfecting kills most viruses and bacteria left on a hard surface after cleaning, using an EPA-registered disinfectant or a stronger bleach solution. In the EPA's definition, a disinfectant destroys or irreversibly inactivates bacteria, fungi and viruses on hard surfaces, but not necessarily bacterial spores. Add disinfecting to cleaning, the CDC advises, when someone in the home is sick or at higher risk because of a weakened immune system. For the coronavirus specifically, the EPA keeps List N, a searchable list of registered disinfectants expected to work against it when used as the label directs.

The label: Contact time on the product label

Contact time is the number of minutes a disinfectant or sanitizer has to stay visibly wet to do its job. It is printed in the Directions for Use, and the EPA says to pay close attention to it.

Spray and wipe in ten seconds, and the surface was cleaned, not disinfected.

Also on the label: the EPA registration number, the only reliable way to identify a registered product, and the list of organisms the product was tested against. A pathogen missing from that list means the EPA has not reviewed data showing the product works on it.

Sterilizing: Sanitize vs disinfect vs sterilize

Sanitize vs disinfect vs sterilize runs from least to most. Sterilizing, the top of that ladder in the EPA's definition, destroys everything: fungi and their spores, viruses, bacteria and bacterial spores. It belongs in hospitals and dental offices, done with steam under pressure, dry heat or chemical sterilants on instruments. No household spray sterilizes a counter, and none needs to.

Homecourt Surface Cleaner Refill, a 1 liter kraft-paper pouch in the Cece fragrance. — The 1L Surface Cleaner Refill fills two bottles and uses 92% less plastic.

Chapter 04

When to clean, sanitize or disinfect at home

A simple schedule for an ordinary house

Disinfecting vs sanitizing at home is mostly a question of what just happened. Nothing happened: clean. Raw chicken happened: clean, then sanitize. Someone is sick: clean, then disinfect.

A surface cleaner for everyday cleaning covers the first case, which is nearly every day, with a coconut-derived degreaser that lifts grease and smudges without streaks. For the other two, the CDC lays out the steps: clean the surface with soap and water, pick an EPA-registered product suited to the surface, follow the label, keep the surface wet for the contact time, never mix products, and wash your hands when you are done.

Clean

Every day: Counters, tables and the sink, with a plant-based cleaner or soap and water.
High-touch spots: Light switches, doorknobs and handles, regularly and after visitors.
Before anything else: Dirt shields germs, so the chemical steps only work on a clean surface.

Sanitize

After raw meat or poultry: Counters and the inside of the sink, with a sanitizer or a weak bleach solution.
After a recall: The refrigerator shelves that held the recalled food.
After a flood: Any food contact surface that got wet.

Disinfect

When someone is sick: The bathroom and the surfaces the sick person touches.
Weakened immunity at home: Chemotherapy, a transplant or an immune condition raises the bar.
Only with the right product: An EPA-registered disinfectant, left wet for its full contact time.

Chapter 05

Disinfect vs sanitize bottom line

What to buy & what to skip

Disinfect vs sanitize matters a few days a year. Cleaning matters every day.

Regular cleaning, in the CDC's view, is enough to prevent the spread of germs in most situations. Keep a disinfectant on hand for sick days, read its contact time, and spend the rest of the year with a cleaner you actually like using. Our guide to safe natural cleaning covers what to look for, and the Surface Cleaner Refill keeps the bottle you already own in rotation with 92% less plastic.

Cleaning, sanitizing & disinfecting FAQ

Quick answers to the three questions we hear most

Does Cleaning Come Before Disinfecting?

Yes, always. Clean the surface with soap and water first, the CDC says, because dirt and other impurities keep the chemical from reaching the germs. What does disinfect mean in practice, then? The second step, applied to a surface that is already clean and left wet for the label's contact time.

What Is an EPA-Registered Disinfectant?

An EPA registered disinfectant is a product the EPA has reviewed and registered as an antimicrobial pesticide, with a registration number on its label and approved directions for use. Registration means the EPA has verified that it kills the organisms on the label when used as directed.

Is Sanitizing the Same as Disinfecting?

No. What does sanitize mean? Reducing bacteria on a surface to a level public health codes consider safe. Sanitizers are not intended to kill viruses. Disinfecting kills most viruses and bacteria and is held to a higher testing standard by the EPA. Many products are registered as both because they passed both tests.