When it comes to running a successful business, having clean and sanitary dishes is a top priority. The key to achieving this is investing in a reliable, efficient, and high-performance commercial dishwasher.

From restaurants and hotels to schools and hospitals, a dishwasher is an essential piece of equipment for any establishment that serves food. But with so many options on the market, knowing what to look for when buying a commercial dishwasher can be overwhelming.

That’s why we’ve put together the ultimate buying guide that covers everything you need to know about efficiency, performance, and reliability. So, whether you’re upgrading your existing setup or starting from scratch, get ready to make an informed decision that keeps your dishes sparkling and your customers happy.

Types of Commercial Dishwashers


Undercounter Dishwashers

Undercounter dishwashers are ideal for small to medium-sized kitchens or those with limited space. As their name suggests, these machines can fit comfortably beneath a countertop and are typically designed to handle a moderate amount of dishes.

Ideal for cafes, bars, and small restaurants, these under-counter dishwashers also come equipped with a variety of convenient features, such as built-in detergent and rinse aid dispensers, making them a reliable and cost-effective option for the budget-conscious.

Conveyor Dishwashers

For larger kitchens with high-volume dishwashing needs, conveyor dishwashers are the way to go. These machines can process a large number of dishes quickly and efficiently, thanks to their advanced technology and conveyor belt system.

One of the biggest benefits of conveyor dishwasher is that they require minimal manual labor, as they have automatic loading and unloading systems in place. This frees up kitchen staff to focus on other tasks, thereby increasing productivity.

Rack Dishwashers

Rack dishwashers are primarily used in small and medium-sized kitchens and are highly configurable, meaning they can be tailored to meet your exact needs. These machines come equipped with interchangeable racks, making them ideal for washing various types of dishware, from glassware to dinnerware.

They are also easy to operate, come with different cycle options, and can complete the washing process quickly, making them a valuable addition to any kitchen.

Flight-Type Dishwashers

Finally, we have flight-type dishwashers, which are designed for high-volume commercial kitchens, such as large hotels and banquet halls. These machines can wash thousands of dishes per hour, making them an indispensable part of any busy kitchen.

They use a conveyor belt system to move dishware through the machine and typically come equipped with advanced features like pre-rinsing and drying capabilities. While these machines can be expensive to purchase, they are a worthy long-term investment for those with high-volume dishwashing needs.

Capacity and Size Considerations


The first factor to consider when buying a commercial dishwasher is the number of dishes to be washed daily. The size of the dishwasher determines its capacity, and it is crucial to match it with the daily dishwashing needs.

If the dishwasher's capacity is too small, the washing process would be slower, causing delays in meal service. On the other hand, if the dishwasher's capacity is too large, the dishwashing machine would run underutilized, wasting electricity, water, and detergent.

To determine a dishwasher's capacity, consider the number of meals served per day and the average number of dishes per meal. Estimate the number of dishes that need to be washed daily, and choose a dishwasher with the appropriate capacity. A high-temperature dishwasher can wash and then sanitize dishes up to 200 dishes per hour, making it suitable for restaurants that serve many meals each day.

Another critical factor to consider when selecting a commercial dishwasher is the space available. Dishwashers come in different sizes and shapes, and it is essential to measure the area where the dishwasher would be installed. The space allocated should be enough to fit the dishwasher, its compartments, and person needed for operation comfortably.

The layout also plays a vital role in selecting a dishwasher. Machines come in various configurations, including undercounter commercial dishwasher, and freestanding. Undercounter dishwashers are ideal for small restaurants where space is limited.

In contrast, freestanding restaurant dishwashers are suitable for large restaurants with high dishwashing needs. Determining where the dishwasher would be installed is also crucial in terms of water and energy supply. The installation area should have the necessary utilities to operate the dishwasher and comply with local plumbing and electrical codes.

Efficiency and Energy Savings


Energy Star ratings are beneficial for commercial dishwashers, as they measure the efficiency of the dishwasher. The Energy Star label is given to dishwashers that meet strict energy-efficiency guidelines set by the Environmental Protection Agency (EPA).

These guidelines are based on their effectiveness in reducing energy consumption, water consumption, and low standby energy requirements. Energy Star-rated dishwashers can save over 30% more energy and over 20% more water than non-rated machines.

The amount of water used in dishwashing operations could reduce technology or techniques tailored toward reducing water usage to produce a significant reduction in operational costs. A dishwasher that is equipped with water-saving technologies can help save water and reduce costs.

Technologies such as accessible nozzles, pre-wash scrapping at the pre-rinse stage, and low-water rinse cycle cycles can offer significant water-saving benefits. Therefore, consider these technologies when choosing an efficient dishwasher for your business.

There are two heat types in many commercial dishwashers, such as electric heat and steam heat. Electric heating elements utilize electric resistance to generate heat energy, while steam generated inside the tank generates energy in a steam dishwasher.

A commercial dishwasher equipped with a stream heat system can save up to 50% energy compared to an electric heat system. The effectiveness of energy-efficient heating and drying options lies in their ability to maintain temperature and humidity, saving energy and reducing operational costs.

Cleaning Performance and Cycle Times


The cleaning efficiency of a dishwasher depends on several factors, including the quality of water, detergent, rinse aid, and temperature. Hard water with high mineral content can cause lime scale buildup and reduce the effectiveness of detergents.

Using the correct amount and type of detergent and rinse aid can enhance the cleaning process and prevent streaks or spots on dishes. Temperature is also a significant factor as it affects the speed and quality of cleaning. The ideal water temperature for most commercial dishwashers is between 140-160 degrees Fahrenheit.

Most commercial dishwashers offer multiple wash cycles to cater to different cleaning needs. It is essential to understand the purpose of each cycle to choose the right one for your dishes. Here are some common types of cycles:

- Quick Wash: Ideal for lightly soiled dishes or items that require immediate use.

- Normal Wash: Suitable for average cleaning needs and varies in cycle lengths from 1-3 minutes.

- Heavy Wash: Ideal for heavily soiled items with tough stains and caked-on foods. It can range between 4-6 minutes.

- Sanitise Cycle: Kills bacteria and other harmful microorganisms by exposing dishes to high temperatures of 180-190 degrees Fahrenheit for at least 90 seconds.

Consistency in cleaning results is crucial to maintain food safety and hygiene standards and avoid dish rejection by customers. Here are some tips to ensure consistent cleaning results:

- Train employees on proper loading techniques and detergent usage.

- Regularly monitor and record the dishwasher temperature and chemical usage.

- Clean and descale the dishwasher regularly to prevent lime scale buildup.

- Replace worn-out or damaged parts, such as spray arms, filters, and detergent dispensers.

- Use or install a water softener or filtration system to improve water quality and protect the dishwasher.

Construction and Durability


When it comes to the construction of commercial dishwashers, there are three main options: stainless steel, plastic, and combination machines. However, stainless steel is the most popular material used in the construction of commercial dishwashers. Stainless steel is durable, easy to clean, and can handle high temperatures and pressure, which is essential in a commercial kitchen dishwasher. It also resists corrosion and rust, making it a great long-term investment.

When it comes to the internal components of a commercial dishwasher, stainless steel’s importance comes into play once again. Stainless steel spray arms, wash tanks, and interior cabinet construction make the dishwasher durable and easy to maintain. Stainless steel components do not stain or corrode, which eliminates the buildup of bacteria and grime that can affect the performance of the dishwasher.

The lifespan and longevity of a commercial dishwasher depend on several factors. However, you should consider the manufacturing process, materials used, and the quality of the parts. The more high-quality components the dishwasher has, the longer you can expect it to last. Stainless steel components may cost more initially, but they are worth it in the long run. Maintenance is another essential consideration. It is crucial to clean your dishwasher correctly and use it efficiently because machines that receive proper maintenance and care will last longer.

Noise Levels and Environmental Impact


When choosing a commercial dishwasher, it's important to find one that operates quietly. Wash cycles in even some of the best commercial dishwashers can be loud and intrusive to the environment, which can impact the dining experience for customers and the workplace environment for staff. Fortunately, manufacturers are aware of this - and have been incorporating solutions to reduce this problem. So, what noise reduction features should you be looking for?

One such feature is an insulated enclosure. This is a layer of sound-dampening material that covers the dishwasher and helps reduce the noise level. Some dishwashers also come with sound-absorbing materials, which can further dampen noise. Additionally, consider selecting an appliance with a high-velocity dryer instead of a traditional one, which can help reduce the duration of the drying cycle and thus, unwanted noise.

Beyond noise reduction, there's the need to keep in mind the environment, an issue that affects all industries. This naturally leads to the adoption of eco-friendly options in commercial dishwashing, which entails the use of equipment that doesn't adversely affect the environment. Some eco-friendly options include:

1. Air-drying options or systems that use steam to dry dishes, reducing energy-intensive heating.

2. Energy-efficient equipment that uses low water consumption and low chemical usage while providing high performance.

3. Equipment that has smart software that assesses the load of dishes and automatically adjusts the water and energy requirements accordingly.

User-Friendly Features


A user-friendly commercial dishwasher should have a simple and intuitive control panel that is easy to navigate. You don't want to spend hours reading the manual or training your staff to use it. Look for machines with labelled buttons and clear indicators that show the cycle's progress. Also, consider machines with customizable settings that allow you to adjust the wash time, temperature, and detergent amount based on your needs.

Commercial dishwashers today come with advanced automation features that make them more convenient and effortless to use. For example, choose machines with pre-set programs such as eco-mode, quick wash, or heavy-duty that you can activate with a simple touch of a button.

Look for models with automatic detergent and rinse aid dispensers, which can save you time and money by reducing the waste and ensuring the correct dosage. You can also choose a dishwasher with programmability, which allows you to schedule the wash cycles in advance, saving you the hassle of manual operation.

Safety is paramount when it comes to commercial dishwashing. A user-friendly dishwasher should come with safety features that prevent accidents and injuries. For example, a machine with a door lock mechanism that prevents opening during the washing process or an automatic shutdown system in case of overheating or water overflow. Also, verify that the dishwasher complies with the regulations and certifications such as NSF, UL, or ETL, which ensure the quality, performance, and safety of the equipment.

Maintenance and Serviceability


One of the essential factors to consider when buying a commercial dishwasher is its ease of cleaning. Keeping the dishwasher clean and sanitized is crucial to prevent cross-contamination and foodborne illness. Look for models with removable and interchangeable parts that can be easily taken apart and cleaned.

Self-cleaning mechanisms like automatic cycle cleaning and sanitization options can save time and effort on manual cleaning. Some models also have built-in food grinders that can prevent clogs and ease the cleaning process.

Another critical factor to consider when buying a commercial dishwasher is the availability of replacement parts. Some brands may not offer spare parts, which can make repairs challenging and costly.

The availability of spare parts also determines the longevity of the dishwasher. Choose a brand that has a reputation for providing dependable customer service and support, with readily available parts that can be replaced when needed.

Regular maintenance is essential to ensure that your commercial dishwasher lasts longer and operates efficiently. Inspect the dishwasher regularly for any cracks, leaks, or worn-out parts. Follow the manufacturer's recommendations for cleaning and maintenance procedures, including descaling, replacing filters, and lubricating moving parts.

Daily cleaning and sanitization of the dishwasher and its components can prevent buildup of minerals, grease, and food residues that can damage the dishwasher or decrease its lifespan.

Budgeting and Total Cost of Ownership


The initial cost of purchasing a commercial dishwasher is high, but it's essential to think beyond that and factor in the long-term savings. Purchasing an energy-efficient dishwasher with a high-temperature sanitizing cycle will reduce your water and energy bills and the need for manual labor.

You'll save on the cost of hiring additional staff to wash dishes. Additionally, a commercial dishwasher helps increase restaurant efficiency, ensuring that your customers get their meals on time.

Another factor to consider is the warranty coverage and repair costs. Even the best dishwashers can break down, causing costly repairs and downtime while waiting for them to be fixed. Before purchasing a dishwasher, ensure you have the right warranty coverage in place. Additionally, check that authorized service providers in your area can perform repairs without delays.

Customer Reviews and Recommendations


Before making a purchase, it's essential to research and gather as much information as possible about the product. Customer reviews and recommendations provide valuable insights into the pros and cons of a commercial dishwasher.

It's advisable to check multiple sources, such as online reviews, forum discussions, and social media groups, to get a comprehensive understanding of the product's performance. By analyzing customer feedback, you can make an informed decision and avoid costly mistakes.

Customer feedback indicates that the ideal commercial dishwasher should be durable, efficient, and easy to use. Users appreciate dishwashers that can handle large volumes of dishes without compromising the cleanliness and quality of the wash.

Dishwashers with adjustable racks, spray arms, and temperature control features are popular among users who prioritize versatility and customization. Energy-efficient dishwashers that save on water and electricity bills are also highly recommended by customers.

Despite their usefulness, commercial dishwashers are not immune to faults and drawbacks. Some users complain about noise levels, especially with high-speed models. Others report issues with maintenance, repair, and spare parts availability, which can be frustrating and expensive in the long run.

In some cases, customers experience leakage, mold growth, and incomplete cleaning, which can compromise hygiene and safety in commercial kitchens. It's essential to consider these negative aspects and weigh them against the positive ones before deciding which dishwasher to buy.

Purchasing and Installation Process


Purchasing a commercial dishwasher is finding reputable suppliers and dealers. Take your time to research the different brands and models available on the market and read reviews from other customers to see how their experiences have been.

Always ensure that the supplier or dealer you're buying from has experience and knowledge in commercial dishwashers to provide you with the necessary support and guidance throughout the process. Additionally, consider suppliers or dealers that offer a range of warranties and service agreements to protect your investment.

Once you've made your purchase, prepare yourself for the installation process. Before the dishwasher arrives, ensure that you have the necessary utilities, such as water, drainage, and electricity, set up for easy installation. Consult with a plumber and electrician before the installation process begins to ensure your kitchen is compatible with the commercial dishwasher you've purchased.

Additionally, consider factors such as the layout of your kitchen, space availability and accessibility, and other modifications that may be necessary to accommodate the new dishwasher.

Conclusion and Final Tips

In conclusion, choosing the right commercial dishwasher can make all the difference in your restaurant's daily operations. Efficiency, performance, and reliability should be at the top of your list when considering which one to purchase.

Don't forget to keep in mind your specific needs and usage requirements. Maybe you have a small café that only needs to run a few loads a day, or perhaps a bustling restaurant that requires a machine that can handle large volumes of dishes.

Whatever your situation may be, taking the time to research and invest in the right commercial dishwasher will save you time, money, and headaches in the long run. So, remember to weigh your options carefully and make the best decision for your business.

FAQs

What is a commercial dishwasher?

It's a heavy-duty machine that's designed to handle the messiest of plates, glasses, and cutlery. But it's not just any regular dishwasher - it's built to power through loads of dishes in a fraction of the time it would take a human to scrub them clean. With its high-speed jets of hot water mixed with soap, it breaks down grime and grease faster than you can say "sparkling clean".

What is the difference between commercial and domestic dishwashers?

While both the other commercial dishwashers and domestic dishwashers essentially do the same job, the main difference lies in their capacity to handle large volumes of dirty dishes. Commercial dishwashers are designed to work continuously for long hours, using high temperatures and stronger detergents to clean dishes faster. In contrast, domestic dishwashers are more compact and can only handle smaller loads.

Is a commercial dishwasher worth it?

If you run a business that requires constant washing of plates, glasses, and utensils, then the answer is a resounding yes. Not only do they save you time and labor, but they also ensure your dishes are cleaned to a higher standard than a regular sink and sponge could provide.

And if you're worried about the cost, don't fret – there are plenty of models on the market that won't break the bank. At the end of the day, a commercial dishwasher is an investment in efficiency and quality that will ultimately benefit your bottom line.