A pot sink is a large commercial sink designed for washing oversized cookware and kitchen equipment that may be difficult to clean in a standard sink or commercial dishwasher.
Restaurants commonly use pot sinks for items such as:
- Stock pots
- Sauce pots
- Fry pans
- Mixing bowls
- Sheet pans
- Steam table pans
- Large utensils
- Food-preparation containers
The term pot sink generally describes the function of the sink rather than one exact configuration.
In many restaurants, the main pot sink is actually a large three-compartment sink that allows employees to wash, rinse, and sanitize cookware manually.
The simplest way to think about it is:
A pot sink is the restaurant's heavy-duty washing station for cookware that is too large or awkward for regular dishwashing equipment.
This guide explains what a restaurant pot sink is, what it is used for, how it differs from a three-compartment sink, and what to consider when planning a pot-washing area.
What Is a Commercial Pot Sink?
A commercial pot sink is a large stainless steel sink used to clean cookware and other oversized foodservice items.
Compared with a small prep or hand sink, a pot sink usually has:
- Larger bowls
- Deeper compartments
- More surrounding workspace
- Heavy-duty commercial construction
The goal is to give employees enough room to properly handle large pots and pans.
What Is a Pot Sink Used For?
A pot sink may be used to wash:
- Large stock pots
- Commercial sauce pots
- Fry pans
- Saute pans
- Braising pans
- Steam pans
- Sheet pans
- Large mixing bowls
- Food-storage containers
- Large utensils
The exact items depend on the restaurant's menu and cooking equipment.
Why Do Restaurants Need Large Pot Sinks?
Commercial kitchens frequently use cookware much larger than what you would find in a home kitchen.
A restaurant may use:
- 40-quart stock pots
- 80-quart stock pots
- Large sauce pots
- Full-size sheet pans
- Large mixing bowls
If the sink bowls are too small, washing these items becomes difficult and inefficient.
Pot Sink vs. Three-Compartment Sink
These terms often overlap, but they do not mean exactly the same thing.
A pot sink describes a sink used primarily for cleaning large cookware.
A three-compartment sink describes a specific sink configuration with three separate bowls for:
- Wash
- Rinse
- Sanitize
A large three-compartment sink can therefore serve as the restaurant's pot sink.
| Pot Sink | Three-Compartment Sink |
|---|---|
| Describes how the sink is used | Describes the sink configuration |
| Designed for pots and large cookware | Designed for wash, rinse, and sanitize |
| May have one or multiple bowls | Has three separate compartments |
| Often built with large bowls | Can also have large bowls suitable for pots |
Can a Three-Compartment Sink Be a Pot Sink?
Yes.
In many restaurants, the three-compartment sink is also the main pot-washing station.
Employees can move cookware through:
Wash → Rinse → Sanitize → Air Dry
while still having bowls large enough for oversized items.
Why Bowl Size Matters More Than the Name
A sink may be advertised as a three-compartment sink, but that does not automatically mean it is large enough for your cookware.
Always look at the individual bowl dimensions.
Important measurements include:
- Bowl width
- Bowl front-to-back depth
- Bowl vertical depth
Measure Your Largest Pot Before Buying
One of the easiest ways to choose a pot sink is to measure the largest cookware in your kitchen.
Check:
- Stock pot diameter
- Pot height
- Sheet pan dimensions
- Mixing bowl diameter
Then compare those measurements with the sink bowls.
Why a Pot Needs to Fit Inside the Sink
If a large pot cannot fit comfortably inside the bowl, employees may have difficulty:
- Scrubbing the interior
- Rinsing it properly
- Turning it around
- Cleaning the exterior
A larger sink can make this process much easier.
What Is a One-Compartment Pot Sink?
A one-compartment pot sink has one large basin.
It may be useful for:
- Rinsing very large cookware
- Soaking pots
- Specialized washing applications
However, the overall warewashing setup still needs to support the restaurant's required cleaning and sanitizing process.
What Is a Two-Compartment Pot Sink?
A two-compartment sink provides two large bowls.
It may be used in certain specialized applications, but many restaurants rely on a three-compartment setup for complete manual warewashing.
What Is a Three-Compartment Pot Sink?
A three-compartment pot sink combines large sink bowls with the standard wash, rinse, sanitize workflow.
This is one of the most practical configurations for full-service restaurant kitchens.
How Does a Pot Sink Work?
When a three-compartment pot sink is used, the basic workflow is:
- Scrape or remove food debris.
- Pre-rinse if needed.
- Wash in the first compartment.
- Rinse in the second compartment.
- Sanitize in the third compartment.
- Allow the item to air dry.
Why Scrape Pots First?
Cookware may contain:
- Rice
- Sauce
- Grease
- Burned food
- Vegetable scraps
Removing excess debris before washing helps keep the sink water cleaner.
What Is a Pre-Rinse Faucet?
A pre-rinse faucet is a flexible commercial spray faucet used to remove food residue before washing.
It is common near:
- Pot sinks
- Three-compartment sinks
- Commercial dishwashers
Why Is a Pre-Rinse Faucet Useful for Pots?
Large cookware can be difficult to rinse using a short standard faucet.
A flexible sprayer lets employees direct water into:
- Deep stock pots
- Large bowls
- Sheet pans
- Food containers
What Is a Pot Sink Drainboard?
A drainboard is a stainless steel surface next to the sink that provides room for cookware before or after washing.
A large pot-washing station may have:
- Left drainboard
- Right drainboard
- Both
Why Are Drainboards Important for Pot Washing?
Large cookware takes up a lot of space.
Without sufficient landing space, employees may end up placing dirty or wet pots:
- On the floor
- On unrelated prep tables
- Inside sink compartments that are still needed
Drainboards keep the process more organized.
What Is the Dirty Side of a Pot Sink?
The dirty side is where used cookware arrives before washing.
This area may include:
- Dirty drainboard
- Soiled dish table
- Scraping area
- Pre-rinse faucet
What Is the Clean Side?
The clean side is where washed and sanitized cookware goes to air dry.
It may include:
- Clean drainboard
- Drying rack
- Commercial work table
- Storage shelving
Why Dirty-to-Clean Flow Matters
A good pot-washing station should move in one direction.
For example:
Dirty Pots → Scrape → Wash → Rinse → Sanitize → Air Dry → Storage
This keeps dirty cookware from crossing back over clean items.
Can a Commercial Dishwasher Replace a Pot Sink?
Not always.
Commercial dishwashers can process many items quickly, but some cookware may be:
- Too large
- Too deep
- Too awkward
to fit comfortably inside the machine.
This is why many restaurants use both.
What Usually Goes in the Dishwasher?
A commercial dishwasher may handle:
- Plates
- Bowls
- Glasses
- Utensils
- Smaller cookware
What Usually Goes in the Pot Sink?
The pot sink may handle:
- Large stock pots
- Sheet pans
- Large mixing bowls
- Oversized cookware
- Large food containers
Pot Sink vs. Prep Sink
A prep sink is intended for food preparation.
It may be used for:
- Washing produce
- Rinsing ingredients
- Other food-related preparation
A pot sink is used for washing cookware and foodservice equipment.
Can You Wash Food in a Pot Sink?
The pot-washing station should remain dedicated to warewashing when it is being used for dirty cookware.
Food-related washing should use the appropriate designated prep facilities.
Pot Sink vs. Hand Sink
A hand sink is used only for employee handwashing.
A pot sink is used to clean cookware.
The two serve completely different purposes.
Can Employees Wash Their Hands in a Pot Sink?
Restaurants should provide dedicated hand sinks rather than relying on a pot sink for handwashing.
Pot Sink vs. Mop Sink
A mop sink is used for janitorial cleaning.
It may receive:
- Dirty mop water
- Cleaning water
- Janitorial tools
A pot sink is for cookware.
Can Mop Water Go Into a Pot Sink?
No.
Dirty janitorial water should remain in the designated mop or service sink area.
Can You Pour Fryer Oil Into a Pot Sink?
No.
Used cooking oil should be handled through the restaurant's proper grease and waste procedures.
Large amounts of grease and oil can create serious plumbing problems.
Are Pot Sinks Good for Indian Restaurants?
They are especially useful in Indian kitchens because large-batch cooking often requires oversized cookware.
An Indian restaurant may need to wash:
- Patilas
- Lagans
- Large stock pots
- Large sauce pots
- Steam pans
- Large mixing bowls
A sink with small bowls can quickly become frustrating in this type of kitchen.
Why Indian Restaurants May Need Deeper Sink Bowls
Large pots used for curries, rice, dal, and catering production can be both wide and tall.
Deeper bowls provide more room for:
- Soaking
- Scrubbing
- Rinsing
Are Pot Sinks Important for Catering Kitchens?
Yes.
Catering operations often use large quantities of:
- Steam pans
- Stock pots
- Mixing bowls
- Serving utensils
A large pot sink can help handle high cleaning volume after events and production shifts.
Are Pot Sinks Useful in Bakeries?
Yes.
Bakeries may use them for:
- Mixing bowls
- Sheet pans
- Mixer attachments
- Large utensils
Are Pot Sinks Useful in Pizzerias?
Yes.
Pizzerias may need to wash:
- Dough containers
- Sheet pans
- Pizza screens
- Sauce containers
- Large mixing bowls
What Material Are Commercial Pot Sinks Made From?
Most commercial pot sinks are made from stainless steel.
Stainless steel is popular because it is:
- Durable
- Cleanable
- Suitable for wet environments
- Common throughout commercial kitchens
What Does Stainless Steel Gauge Mean?
Gauge refers to the thickness of the metal.
With stainless steel sheet metal, a lower gauge number generally means thicker steel.
For example:
16-gauge stainless steel is generally thicker than 18-gauge stainless steel.
Is Thicker Stainless Steel Better?
Thicker material may offer greater durability, but overall sink construction also matters.
Consider:
- Sink bowls
- Legs
- Cross bracing
- Drainboards
- Backsplash
Why Does a Pot Sink Have a Backsplash?
Pot washing creates a lot of water and splashing.
A raised backsplash helps protect the wall behind the sink from:
- Water
- Soap
- Food debris
Why Are Pot Sink Bowls So Deep?
Depth helps accommodate:
- Tall stock pots
- Large bowls
- Cookware soaking in water
It can also help contain splashing.
Can a Sink Be Too Deep?
Potentially.
The sink still needs to be comfortable for employees to use.
A very deep bowl can require employees to reach farther downward.
Consider both cookware size and working comfort.
Where Should a Pot Sink Be Located?
A pot sink is generally located in the restaurant's warewashing area.
Ideally, it should be close enough to the cook line that employees can bring large cookware to the sink without carrying it through unrelated prep areas.
Should the Pot Sink Be Near the Cook Line?
It can be helpful, particularly in kitchens generating many dirty pots throughout service.
However, it should not:
- Block the cooking aisle
- Create dirty traffic through food prep
- Interfere with clean dish storage
Should It Be Near the Commercial Dishwasher?
Often, yes.
Keeping the dishwasher and pot sink in the same general warewashing zone can simplify:
- Dish collection
- Pre-rinsing
- Waste handling
- Clean storage
What Should Be Next to a Pot Sink?
A well-planned station may include:
- Dirty landing table
- Pre-rinse faucet
- Pot sink
- Clean drainboard
- Drying rack
- Clean storage
Can a Work Table Go Next to a Pot Sink?
Yes.
A stainless steel Commercial Work Table can provide additional landing or drying space when appropriate for the dish area.
What Is a Soiled Dish Table?
A soiled dish table provides space for dirty dishes and cookware before washing.
It can help keep piles of dirty pots off:
- The floor
- Prep tables
- Clean surfaces
What Is a Clean Dish Table?
A clean dish table provides space for washed and sanitized items after cleaning.
It helps keep clean cookware separated from the dirty side.
Why Air-Drying Space Matters
Large pots take up significant room while drying.
A restaurant should have enough space for cookware to air dry without:
- Blocking the sink
- Being stacked while still wet
- Coming into contact with dirty cookware
Can Pots Be Towel Dried?
Cleaned and sanitized food-contact items are generally allowed to air dry rather than being wiped dry with a towel.
Can You Store Clean Pots Near the Sink?
Yes, if the storage area is appropriate and keeps clean cookware protected from:
- Splashing
- Dirty dishes
- Food debris
What Size Pot Sink Does a Restaurant Need?
The answer depends primarily on the largest cookware used.
Consider:
- Pot diameter
- Pot height
- Sheet pan size
- Mixing bowl size
- Daily warewashing volume
Small Restaurant vs. Large Restaurant Pot Sink
Small Restaurant
May primarily wash:
- Small pots
- Saute pans
- Food containers
Large Restaurant
May need room for:
- Large stock pots
- Sheet pans
- Large mixing bowls
- High-volume cookware
Why Total Sink Width Can Be Misleading
A 90-inch-wide sink does not tell you how large each bowl is.
A significant amount of that width may include:
- Drainboards
- Dividers
- Backsplash structure
Always check the individual compartment dimensions.
Measure the Wall Before Ordering
A large pot sink can take up substantial wall space.
Measure:
- Available wall width
- Plumbing locations
- Nearby doors
- Nearby equipment
Measure the Delivery Path
Large commercial sinks can be difficult to move into a restaurant.
Check:
- Exterior doors
- Interior doors
- Hallways
- Stairs
- Tight corners
before ordering.
Why Plumbing Location Matters
The pot sink needs access to appropriate:
- Water supply
- Drainage
- Faucet connections
Moving plumbing after construction can make the project more complicated.
Can You Move an Existing Pot Sink?
Potentially.
However, moving it can involve changes to:
- Water lines
- Drain lines
- Wall finishes
- Flooring
When taking over an existing restaurant, reusing a good sink location can sometimes simplify the kitchen layout.
Taking Over an Existing Restaurant
Inspect the existing pot-washing area before deciding what to replace.
Check:
- Sink bowl dimensions
- Stainless steel condition
- Faucet
- Pre-rinse sprayer
- Drainboards
- Plumbing
- Dirty landing space
- Clean drying area
Can You Reuse an Existing Pot Sink?
Potentially, if it is:
- In good condition
- Large enough for the new restaurant's cookware
- Compatible with the planned workflow
Do Not Assume the Previous Restaurant's Sink Is Big Enough
A restaurant concept using small saute pans may have very different needs from a kitchen using:
- Large stock pots
- Lagans
- Large mixing bowls
- Catering pans
Pot Sink Buying Checklist
Before choosing a pot sink, consider:
- Number of sink compartments
- Individual bowl width
- Bowl front-to-back depth
- Bowl vertical depth
- Largest cookware dimensions
- Drainboard size
- Backsplash
- Stainless steel construction
- Faucet type
- Pre-rinse sprayer
- Available wall space
- Plumbing location
- Clean and dirty workflow
- Delivery path
Frequently Asked Questions
What is a pot sink in a restaurant?
A pot sink is a large commercial sink designed for washing oversized cookware such as stock pots, pans, mixing bowls, sheet pans, and food containers.
Is a pot sink the same as a three-compartment sink?
Not exactly. Pot sink describes the purpose of the sink, while three-compartment sink describes a three-basin wash, rinse, and sanitize configuration. A three-compartment sink can also be a pot sink.
What do restaurants wash in a pot sink?
Restaurants commonly wash stock pots, pans, mixing bowls, sheet pans, steam pans, and oversized utensils in a pot sink.
How many compartments does a pot sink have?
Pot sinks can have different configurations, but large three-compartment sinks are very common because they support washing, rinsing, and sanitizing.
Can a commercial dishwasher replace a pot sink?
Not always. Large pots and pans may not fit comfortably inside a commercial dishwasher.
Can you wash sheet pans in a pot sink?
Yes, if the sink bowls are large enough for them.
Can you wash stock pots in a pot sink?
Yes. Large stock pots are one of the main reasons restaurants use oversized pot sinks.
Can you wash food in a pot sink?
A pot sink used for dirty cookware should remain part of the warewashing area. Food washing should use the appropriate designated prep facilities.
Can employees wash their hands in a pot sink?
No. Restaurants should provide dedicated handwashing sinks.
Can mop water go in a pot sink?
No. Dirty cleaning water should be handled in the appropriate mop or service sink.
Can fryer oil go down a pot sink?
No. Used cooking oil should be handled through proper grease and waste procedures.
Why are pot sinks so deep?
Deep bowls make it easier to accommodate tall stock pots, large cookware, and soaking applications.
Why do pot sinks have large drainboards?
Large cookware needs space before washing and after sanitizing, so drainboards help organize dirty and clean items.
What is a pre-rinse faucet?
A pre-rinse faucet is a flexible commercial sprayer that helps remove food residue from pots and pans before washing.
Where should a pot sink be located?
It is generally located in the restaurant's warewashing or dishwashing area.
Should a pot sink be near the dishwasher?
Often yes. Keeping the major warewashing equipment together can create a more efficient dish area.
How big should a restaurant pot sink be?
The sink should be large enough for the biggest cookware the restaurant regularly needs to wash.
Are pot sinks important for Indian restaurants?
Yes. Indian restaurants often use large patilas, lagans, stock pots, and other oversized cookware that benefit from larger sink compartments.
Can you reuse an existing restaurant pot sink?
Potentially, if it is in good condition, large enough for your cookware, and works with the planned dishwashing workflow.
What should I measure before buying a pot sink?
Measure your largest cookware, individual bowl dimensions needed, available wall space, plumbing location, drainboard space, and the delivery path into the restaurant.
Final Thoughts: What Is a Pot Sink in a Restaurant?
A pot sink is the heavy-duty washing area of a commercial kitchen.
It is designed to handle cookware that may be too large or awkward for normal dishwashing equipment, including:
- Stock pots
- Large pans
- Sheet pans
- Steam pans
- Mixing bowls
- Large food containers
In many restaurants, the pot sink is a large three-compartment sink that supports:
Wash → Rinse → Sanitize → Air Dry
When choosing one, focus on the size of the actual sink bowls rather than the overall sink dimensions.
The most important question is:
Will my largest cookware fit comfortably inside the sink?
You should also consider:
- Drainboard space
- Pre-rinse faucet
- Plumbing
- Dirty and clean workflow
- Available wall space
Nishi Enterprise carries Commercial Cookware, including Stock Pots, Sauce Pots, Steam Pans, and Commercial Work Tables for restaurant kitchens and warewashing areas.
Restaurants planning a new commercial kitchen or remodeling an existing operation can also learn more about Nishi Enterprise's Restaurant Design Consultation.
The simplest way to remember it is this: a pot sink gives restaurant employees enough room to properly clean the large cookware that regular sinks and dishwashers may not be able to handle.
