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How to Clean a Commercial Dishwasher: Do You Need Chemicals Like Domestic Models?
In any commercial kitchen, your dishwasher is one of the hardest-working pieces of equipment. Whether you're in a bustling café, a fine-dining restaurant, or a large-scale catering operation, keeping your commercial dishwasher clean is essential for hygiene, performance, and equipment longevity.A common question kitchen staff ask is: "Do I need to clean a commercial dishwasher like a domestic one — with cleaning chemicals?" The short answer is: Yes — but there's more to it.This guide covers everything you need to know about maintaining your commercial dishwashing equipment, from daily cleaning routines to chemical selection and preventative maintenance. Key Takeaways Commercial dishwashers require daily filter cleaning and monthly deep cleaning with specialised chemicals Foodservice-grade descalers and cleaners are essential — avoid domestic products Regular maintenance prevents costly breakdowns and ensures compliance with health regulations Commercial units operate at higher temperatures and require more frequent attention than domestic models Why You Must Clean Your Commercial DishwasherEven though commercial dishwashers are designed for heavy-duty, high-speed operation, they still accumulate buildup that affects performance and hygiene. Without regular cleaning, you'll face problems with wash quality and equipment reliability.Common buildup includes: Grease and food debris from plates, cookware, and kitchen utensils Limescale and mineral deposits from hard water Detergent residue that can leave streaks on dishes Bacteria and foul odours that create health hazards Regular cleaning ensures: Sanitary washing results that meet health code requirements Reduced breakdowns and longer equipment lifespan Lower maintenance costs through preventative care Compliance with health regulations for food service operations 💡 Key Insight: A poorly maintained commercial dishwasher can harbour bacteria even while appearing to clean dishes. Regular deep cleaning isn't just about performance — it's a food safety requirement.How to Clean a Commercial Dishwasher: Step-by-Step ProcessFollow this comprehensive cleaning routine to maintain your commercial dishwasher in optimal condition. This process should be performed daily for basic cleaning, with a deeper chemical clean monthly.Step 1: Turn Off and DrainStart by switching off the dishwasher at the power source. Allow the machine to cool if it's been in use, then drain any remaining water from the tank. This prevents scalding and allows you to access all components safely.Step 2: Remove and Clean FiltersTake out all filters, strainers, and screens from the machine. Rinse them thoroughly under warm water to remove loose debris. Use a soft-bristled brush to scrub away any trapped food particles, grease, or buildup in the mesh.This step should be done daily in busy kitchens to prevent clogging and maintain wash quality.Step 3: Clean Spray ArmsRemove the spray arms if your model allows detachment. Inspect each nozzle for blockages from mineral deposits or food particles. Soak the arms in warm water mixed with a degreasing solution for 15-20 minutes, then use a small brush or toothpick to clear blocked holes.Step 4: Scrub the InteriorUsing a non-abrasive cloth or sponge, thoroughly scrub the interior walls, floor, and ceiling of the wash chamber. Pay special attention to corners, gaskets, and door seals where grease and debris accumulate.Check behind removable panels and around the door edges for hidden buildup that can harbour bacteria.Step 5: Use Commercial-Grade Dishwasher CleanerRun an empty cleaning cycle using a commercial-grade descaler or machine cleaner specifically formulated for commercial dishwashers. These products are designed to remove: Limescale buildup from hard water Soap scum and detergent residue Grease films and odours Mineral deposits that affect heating elements ⚠️ Important: Do not use standard domestic dishwasher tablets, vinegar, or baking soda. These products are not formulated for commercial use, may not be strong enough for heavy-duty cleaning, and can damage machine components or void warranties.Step 6: Clean the ExteriorWipe down the control panel, door handle, and exterior surfaces with a disinfectant-safe cleaner suitable for stainless steel equipment. This prevents cross-contamination and maintains a professional appearance.Step 7: Refill Detergent and Rinse AidCheck the levels of commercial dishwasher detergent and rinse aid. Refill dispensers as needed to ensure the next wash cycle has adequate chemical dosing for proper cleaning and drying.Do I Need Chemicals to Clean a Commercial Dishwasher?Yes, absolutely. Just like domestic dishwashers, commercial models require periodic use of specialized cleaning chemicals — but they must be foodservice-grade and compatible with high-temperature, high-volume machines.Commercial dishwashers operate under more demanding conditions than household units. They process hundreds of items daily, handle heavier grease loads, and run at higher temperatures. Standard household cleaning products simply aren't formulated for this level of performance.Recommended Chemical Types for Commercial DishwashersStock your kitchen with these essential commercial cleaning chemicals: Commercial descaler – Removes limescale buildup in hard water areas, protecting heating elements and spray nozzles Machine cleaner tablets or liquids – Dissolves grease, protein residue, and mineral deposits throughout the system Chlorinated cleaners or sanitizers – Provides deep cleaning and disinfection for monthly maintenance cycles Degreasing solutions – Specifically targets heavy grease accumulation from cookware and baking trays 💡 Key Insight: Avoid DIY cleaning hacks like vinegar or baking soda. While these may work for domestic dishwashers, they can corrode commercial machine seals, damage pumps, and void manufacturer warranties. Always use products approved for commercial use.Domestic vs Commercial Dishwasher Cleaning: Key DifferencesUnderstanding how commercial dishwasher maintenance differs from domestic models helps kitchen staff appreciate the importance of proper cleaning protocols. Feature Domestic Dishwasher Commercial Dishwasher Cleaning Frequency Weekly or bi-weekly Daily (plus monthly deep clean) Type of Chemicals Consumer-grade tablets Foodservice-grade descaler & cleaner Cleaning Method Mostly automatic Manual + chemical + rinse cycles Water Temperature Lower (60–70°C) Higher (80–90°C sanitising) Downtime Impact Minimal Affects entire kitchen workflow Volume Processed 5–15 place settings per cycle 100–300+ items per hour Pro Tips for Maintaining Your Commercial DishwasherBeyond regular cleaning, these maintenance practices will extend equipment life and prevent costly breakdowns in your commercial kitchen.Establish a Daily Cleaning RoutineClean filters and strainers daily without exception. This single habit prevents most clogging issues and maintains consistent wash quality. Train all kitchen staff on this procedure, not just dishwashing personnel.Address Hard Water IssuesInstall and maintain a water softener in hard water areas to significantly reduce limescale buildup. Test water hardness quarterly and adjust softener settings as needed. This protects heating elements, spray arms, and pumps from mineral damage.Schedule Monthly Deep CleaningRun a dedicated descaling cycle with commercial-grade descaler every month, even if the machine appears clean. Set a calendar reminder to ensure this critical maintenance isn't overlooked during busy periods.Train Your Kitchen TeamEducate all staff to recognize early warning signs of dishwasher problems: unusual noises, reduced spray pressure, longer cycle times, dishes not drying properly, or unpleasant odours. Early detection prevents small issues from becoming expensive repairs.Follow Manufacturer GuidelinesConsult your machine's manual for brand-specific cleaning recommendations. Different manufacturers (such as Hobart, Washtech, or Fagor) may have unique requirements for chemical types, cleaning procedures, or maintenance schedules.Keep cleaning logs to track maintenance activities and identify patterns that might indicate developing problems. Quick Reference: Cleaning Schedule After each service: Empty and rinse filters Daily: Remove and clean filters thoroughly, wipe down exterior Weekly: Inspect and clean spray arms, check gaskets and seals Monthly: Run descaling cycle, deep clean interior, check water softener Quarterly: Professional service inspection recommended Common Problems Caused by Poor Dishwasher MaintenanceNeglecting proper cleaning leads to predictable problems that affect both operation and food safety. Understanding these consequences reinforces the importance of consistent maintenance.Reduced Wash QualityClogged filters and spray arms result in poor water circulation. Dishes come out with food residue, grease films, or spotting. This forces rewashing, slowing down kitchen operations and wasting water and chemicals.Equipment BreakdownsLimescale buildup on heating elements reduces efficiency and eventually causes element failure. Mineral deposits in pumps and valves lead to mechanical failures. These repairs are expensive and cause significant downtime.Health Code ViolationsBacterial growth in neglected dishwashers poses serious food safety risks. Health inspectors can shut down operations for dishwasher sanitation failures, resulting in lost revenue and reputation damage.Higher Operating CostsInefficient operation from buildup increases water, energy, and chemical consumption. The machine works harder to achieve poor results, shortening its lifespan and requiring premature replacement.Choosing the Right Cleaning ProductsNot all commercial dishwasher cleaners are created equal. Select products based on your water quality, machine type, and specific cleaning challenges.For Hard Water AreasPrioritise powerful descalers with phosphoric or citric acid formulations. Use these monthly at minimum, or more frequently if you notice white film on glassware or dishes.For Heavy Grease LoadsRestaurants using commercial fryers or handling significant grease need alkaline cleaners designed to break down oils. These products prevent grease accumulation in spray arms and wash tanks.For High-Volume OperationsBusy kitchens processing hundreds of covers daily benefit from weekly deep cleaning cycles in addition to daily maintenance. Consider enzymatic cleaners that break down protein and starch residues effectively.When to Call a ProfessionalWhile regular cleaning is a staff responsibility, certain situations require professional service technicians.Contact a qualified technician when you notice: Persistent poor wash results despite thorough cleaning Unusual noises, vibrations, or error codes Water leaks or drainage problems Heating element failures or inability to reach proper temperatures Pump malfunctions or pressure issues Annual professional servicing supplements your regular maintenance routine and catches problems before they cause breakdowns. Many suppliers offer service contracts that include scheduled inspections and priority repairs.Final Thoughts: Make Dishwasher Maintenance a PriorityCleaning your commercial dishwasher isn't optional — it's a critical component of kitchen hygiene, operational efficiency, and equipment longevity. While the process shares some similarities with domestic dishwashers, commercial kitchens require stronger, food-safe chemicals and more frequent cleaning protocols.Whether you're cleaning a pass-through, undercounter, or conveyor-style dishwasher, always use proper commercial-grade products and follow a consistent maintenance routine. A clean machine means cleaner dishes, fewer breakdowns, compliance with health regulations, and a better overall kitchen experience.Ready to upgrade your commercial kitchen equipment or stock up on proper cleaning supplies? Explore our full range of commercial dishwashing and cleaning products, or browse our complete selection of professional kitchen equipment designed for Australian hospitality businesses.
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Which Dishwasher Machine Should I Buy for My Restaurant?
Running a restaurant means dealing with heavy volumes of dishes daily — and choosing the right commercial dishwasher is crucial for keeping your kitchen running smoothly. But with so many models and brands on the market, how do you know which one suits your needs?In this guide, we break down what you need to consider before buying a commercial dishwasher for your restaurant, and compare top-rated models from trusted brands like Washtech, Eswood, Meiko, and Sammic. Key Takeaways Commercial dishwashers are essential for food safety compliance, labour savings, and operational efficiency Choose between underbench, pass-through, glasswasher, or conveyor models based on your volume needs Energy and water efficiency features can significantly reduce running costs Top Australian brands offer different strengths: Washtech for reliability, Eswood for value, Meiko for premium performance, and Sammic for flexibility Why a Commercial Dishwasher Is Essential for Your RestaurantA quality commercial dishwasher saves time, reduces labour costs, improves hygiene, and ensures compliance with food safety regulations. Compared to domestic dishwashers, commercial models are built for speed, durability, and higher temperatures — delivering sanitised, spotless results in minutes.For busy kitchens, the difference between a standard household unit and a proper commercial dishwashing system can mean the difference between smooth service and bottlenecks that frustrate staff and delay table turns. 💡 Key Insight: Commercial dishwashers typically operate at 82–90°C rinse temperatures, ensuring thermal disinfection that meets Australian food safety standards — something domestic models can't achieve.Key Factors to Consider When Choosing a Commercial DishwasherBefore investing in a dishwasher, you need to assess your specific operational requirements. Here are the critical factors that will guide your decision.1. Type of DishwasherDifferent kitchen formats require different dishwasher configurations. Understanding these categories will help you narrow your options quickly. Underbench Dishwashers – Ideal for small restaurants, cafes, or bars with limited space and moderate dish volumes Pass-Through (Hood-Type) Dishwashers – Best for medium to large kitchens with high turnover, allowing dirty dishes in one side and clean out the other Glasswashers – Designed specifically for bars or venues with a high volume of glassware, featuring gentler cycles and quick turnaround Conveyor or Rack Dishwashers – Suited for large-scale operations, catering halls, or hospitals handling continuous high volumes Your venue size, layout, and service style will determine which type fits best. A compact café will have very different needs than a high-volume restaurant or hotel kitchen.2. Capacity and SpeedThink about how many racks you need to clean per hour. Busy restaurants typically need machines that can handle at least 30–60 racks per hour.Calculate your peak service dish volume: count covers served per hour, estimate dishes per cover, and factor in prep items and cookware. This gives you a realistic baseline for the capacity you'll need. 💡 Key Insight: Match your dishwasher capacity to your peak hours, not your average. Undersized equipment creates service bottlenecks when you're busiest.3. Water and Energy EfficiencyLook for models with eco modes, heat recovery systems, and low water usage per cycle to save on utilities and boost sustainability. Australian water and energy costs make efficiency features a worthwhile investment.Modern commercial dishwashers can use as little as 2–3 litres per cycle, compared to older models that might use 10+ litres. Over thousands of cycles annually, these savings add up significantly.4. Ease of Use and MaintenanceTouchscreen controls, self-cleaning cycles, and easy access for servicing make life easier for your kitchen team. Staff turnover in hospitality is high, so intuitive operation reduces training time.Consider maintenance requirements and parts availability. Machines that are difficult to service or require specialist technicians can mean costly downtime when issues arise.5. Hygiene and ComplianceCheck for features like thermal disinfection and built-in temperature displays to meet food safety standards. Your dishwasher must reach and maintain proper sanitising temperatures to comply with Australian health regulations.Features like automatic chemical dosing, rinse aid dispensers, and temperature monitoring ensure consistent results every cycle — critical for food safety audits and customer health.Best Commercial Dishwasher Brands in AustraliaLet's compare the leading brands available through Australian suppliers, examining their standout features and ideal use cases.🧼 WashtechKnown for: Reliability, energy efficiency, and easy servicing.Top model: Washtech XP Pass-Through Dishwasher Up to 1,000 plates per hour Low water consumption (2.4L per cycle) Made in New Zealand with strong local support network Suited for medium to high-volume kitchens Best for: Restaurants looking for durability and low running costs with excellent after-sales support.🧼 EswoodKnown for: Australian-built, cost-effective machines with fast cycles.Top model: Eswood ES50 Underbench Dishwasher Up to 600 plates per hour 2-minute wash cycles for quick turnover Compact footprint with robust stainless-steel build Competitive pricing for local manufacture Best for: Small to medium restaurants, cafes, and bistros seeking value without compromising quality.🧼 MeikoKnown for: Premium German engineering, hygiene-focused features, and sustainability.Top model: Meiko M-iClean H Hood Type Dishwasher Heat recovery system for lower energy use Active drying system for immediately usable dishes Innovative hood opening for ergonomic operation Advanced sensors and automation for consistent results Best for: High-end restaurants and venues prioritising hygiene, speed, and eco-performance where budget allows for premium equipment.🧼 SammicKnown for: European-built dishwashers with easy operation and solid performance.Top model: Sammic X-60B Pass-Through Dishwasher 40 racks per hour capacity Electronic control panel with multiple programs Optional drain pump and water softener for flexibility Reliable mid-range performance Best for: Mid-sized kitchens needing dependable washing with flexibility and straightforward operation.Commercial Dishwasher Comparison Table Brand Type Capacity Best For Washtech XP Pass-Through 1,000 plates/hour High-volume restaurants Eswood ES50 Underbench 600 plates/hour Cafes & small restaurants Meiko M-iClean H Hood Type High volume Premium establishments Sammic X-60B Pass-Through 40 racks/hour Mid-sized kitchens Additional Equipment to ConsiderYour dishwashing area needs more than just the machine itself. Proper workflow requires supporting equipment to maximise efficiency.Consider investing in quality stainless steel work benches for dish sorting and loading areas. You'll also need commercial shelving for clean dish storage and potentially trolleys for transporting racks between dining areas and the dish pit.Don't forget proper cleaning chemicals formulated for commercial dishwashers — using incorrect detergents can damage machines and void warranties.Installation and Ongoing CostsBeyond the purchase price, factor in installation costs including plumbing modifications, electrical upgrades, and ventilation requirements. Pass-through models especially may need significant kitchen layout adjustments.Ongoing costs include water, energy, detergent, rinse aid, and regular servicing. Ask suppliers about maintenance contracts and parts availability. Some brands offer better local support networks than others, which can be critical for minimising downtime. 💡 Key Insight: A more expensive, energy-efficient model often pays for itself within 2–3 years through reduced utility costs, especially in high-volume operations.Final ThoughtsThe best dishwasher for your restaurant depends on your space, dish volume, staff flow, and budget. For compact kitchens, an Eswood underbench is a strong choice. If you're handling large volumes, Washtech and Sammic pass-throughs are reliable workhorses. And for ultimate performance and hygiene, Meiko is hard to beat.Take time to assess your actual needs rather than over- or under-buying. The right commercial dishwasher becomes the backbone of your kitchen's efficiency, supporting smooth service and maintaining the hygiene standards your customers expect.Whether you're outfitting a new venue or upgrading existing dishwashing equipment, choosing quality commercial-grade machines designed for Australian conditions will serve you well for years to come.Ready to upgrade your commercial kitchen? Explore our full range of commercial dishwashing equipment and other essential benchtop equipment to optimise your kitchen workflow.
Commercial vs. Domestic Dishwashers: Which One is Right for You?
If you run a busy kitchen, choosing the right commercial dishwasher can save you time, money, and effort. But how does a commercial dishwasher compare to a domestic dishwasher, and which one is right for your business? Understanding the key differences will help you make an informed decision that supports your operation's efficiency and hygiene standards.In this guide, we'll explore how commercial dishwashers work, compare them to domestic models, and help you choose the right solution for your foodservice business.How Does a Commercial Dishwasher Work?A commercial dishwasher is engineered for speed, efficiency, and hygiene—making it essential for restaurants, cafés, and foodservice businesses. Unlike domestic models designed for home use, commercial units are built to handle high-volume operations while meeting strict health and safety standards.Here's what sets commercial dishwashers apart:Faster Wash Cycles for High-Volume OperationsUnlike domestic dishwashers that take 30-90 minutes per cycle, a commercial dishwasher completes a wash in just 60-120 seconds. This rapid turnaround is critical for busy kitchens that need clean dishes, glassware, and utensils back in circulation quickly.Whether you're running a café during morning rush or a restaurant during dinner service, speed matters. Commercial units keep up with demand without creating bottlenecks in your workflow.High-Temperature Rinse for Superior SanitizationCommercial dishwashers rinse at 75-85°C, ensuring thorough sanitization by killing bacteria and pathogens. This high-temperature rinse also helps dishes dry faster without the need for towels, reducing cross-contamination risks.This feature is particularly important for businesses handling glassware and dinnerware in customer-facing environments where hygiene is paramount. 💡 Key Insight: The high-temperature rinse in commercial dishwashers isn't just about cleaning—it's a critical food safety measure that helps you meet health department standards and protect your customers.Automatic Chemical Dispensing SystemCommercial dishwashers come with an auto-dispensing system that delivers the precise amount of detergent and rinse aid for each cycle. This eliminates guesswork, reduces chemical waste, and ensures consistent cleaning results.Over time, this automation saves money on cleaning chemicals and reduces the labour involved in manual dosing—especially important when you're managing a busy kitchen team.Auto Drainage and Large Waste FiltersMost commercial dishwashers include automatic drainage systems and large waste filters designed to handle food debris without clogging. This keeps your dishwasher running smoothly throughout service and minimizes downtime for maintenance.The robust filtration system is essential when you're washing everything from cookware to serving platters with varying levels of food residue.Easy Maintenance and CleaningDesigned for high-use commercial environments, these dishwashers feature removable components and simple cleaning processes. This makes daily maintenance quick and hassle-free, so your team can focus on food preparation rather than equipment upkeep.How Do Domestic Dishwashers Compare?A domestic dishwasher is designed for household use and simply doesn't have the capacity or specifications needed in a commercial setting. While they work well in home kitchens, they fall short in foodservice environments.Here's why domestic models aren't suitable for commercial operations: Feature Commercial Dishwasher Domestic Dishwasher Cycle Time 60-120 seconds 30-90 minutes Rinse Temperature 75-85°C 50-60°C Chemical Dispensing Automatic Manual Capacity High-volume Limited Sanitization Level Commercial-grade Household-grade Longer Wash TimesDomestic dishwashers take 30-90 minutes per cycle, making them completely impractical for high-volume operations. In a busy café or restaurant, this would create severe bottlenecks and force you to stock excessive quantities of dishes.Lower Temperature RinseDomestic models typically rinse at 50-60°C, which may not be hot enough to fully sanitize dishes according to food safety standards. This lower temperature can also leave dishes wet, requiring manual drying with towels.Manual Chemical AdditionWithout an automatic dispenser, detergent and rinse aid must be added manually for each cycle. This leads to inconsistent results, potential chemical waste, and additional labour time.Smaller Capacity and Durability IssuesDomestic dishwashers hold fewer dishes and aren't built to withstand the constant use required in commercial kitchens. They're more likely to break down under heavy workloads, leading to costly repairs and downtime. 💡 Key Insight: While a domestic dishwasher costs less upfront, the slower cycles, lower sanitization standards, and frequent breakdowns make it a poor investment for any commercial operation—even small cafés or food trucks.Choosing the Right Commercial DishwasherWhen upgrading to a commercial dishwasher, several factors will influence which model is right for your business. Consider these key elements before making your purchase:Available Space and LayoutEnsure your kitchen layout can accommodate a commercial unit. Options include under-bench models for compact spaces, pass-through dishwashers for larger operations, or conveyor-style units for high-volume establishments.Proper placement is crucial—you'll want to position your dishwasher to create an efficient workflow from dirty dish collection to clean dish storage.What You're WashingAre you primarily cleaning cutlery, plates, glasses, or large cookware? Different dishwashers are optimized for different items. Some models feature adjustable racks or specialized cycles for delicate glassware.Understanding your specific washing needs will help you select a machine with the right capacity and features.Usage Frequency and VolumeHigh-volume kitchens need robust dishwashers with faster cycles and higher capacity. Calculate your peak service periods and estimate how many racks you'll need to wash per hour.For busy restaurants and cafés, investing in a faster, more durable model pays for itself through improved efficiency and reduced labour costs.Water and Energy EfficiencyModern commercial dishwashers are designed to be water and energy efficient, which reduces operating costs over time. Look for models with efficient heating systems and water consumption ratings that suit your sustainability goals. Key Takeaways Commercial dishwashers complete cycles in 60-120 seconds versus 30-90 minutes for domestic models High-temperature rinse at 75-85°C ensures proper sanitization and faster drying Automatic chemical dispensing reduces waste and ensures consistent cleaning results Commercial units are built for durability and can handle high-volume operations Choose your dishwasher based on space, washing needs, and usage frequency Additional Considerations for Your Commercial KitchenBeyond the dishwasher itself, consider how this equipment fits into your broader dishwashing and cleaning setup. You'll need appropriate stainless steel work benches for dish sorting and a proper drainage system.Don't forget about chemical storage and staff training on proper operation and maintenance. A well-integrated warewashing area improves efficiency and helps maintain hygiene standards throughout your kitchen.Ready to Upgrade Your Dishwashing Equipment?Choosing between a commercial and domestic dishwasher isn't really a choice for serious foodservice businesses—commercial units are essential for maintaining speed, hygiene, and efficiency in busy kitchens.At Hospitality Connect, we specialize in café equipment and commercial kitchen solutions for Australian businesses. Our team can guide you in selecting the best commercial dishwasher for your operation, considering your space, budget, and specific washing needs.Contact us today to discuss your dishwashing requirements and find the perfect solution for your commercial kitchen.