Commercial Dishwasher Temperature Australia

The temperature a commercial dishwasher should reach depends on how it sanitises. High-temperature machines typically wash at around 60C and finish with a final sanitising rinse near 82C or hotter to sanitise with heat, while low-temperature machines run cooler and rely on a chemical sanitiser injected into the rinse instead. In both cases, the goal is the same: clean, then effectively sanitise crockery and utensils. Because the safe target varies with the machine and method, you must follow the manufacturer's specification and verify that the machine actually achieves it. Standard 3.2.2 of the Australian Food Standards Code requires eating and drinking utensils and food contact equipment to be cleaned and sanitised. A dishwasher is often the workhorse that delivers both steps, so knowing its correct temperatures, and confirming it hits them, is central to kitchen hygiene. What is the difference between high-temp and low-temp dishwashers? Commercial dishwashers sanitise in one of two ways, and the required temperatures follow from that choice. High-temperature machines These sanitise with heat. They wash at a high temperature and then deliver a very hot final rinse, commonly cited around 82C or above, to sanitise the load. The high rinse temperature is what does the sanitising, so if the rinse runs cool the load may be clean but not sanitised. Low-temperature machines These run at lower temperatures and inject an approved chemical sanitiser into the rinse to do the sanitising that heat would otherwise provide. Here the wash temperature matters for cleaning, but the sanitising depends on the correct sanitiser concentration being dosed into the rinse. Machine type Sanitising method Critical control High-temperature Heat via hot final rinse Final rinse reaches the specified temperature Low-temperature Chemical sanitiser in rinse Correct sanitiser concentration dosed What temperatures should each stage reach? Exact targets are set by the machine manufacturer and should be displayed on the unit or in its manual, but the general pattern for a high-temperature machine is: Wash cycle: Hot enough to remove grease and food soil, commonly around 60C. Final sanitising rinse: Much hotter, commonly around 82C or above, to sanitise by heat. For a low-temperature machine, the wash and rinse run cooler and the manufacturer specifies the sanitiser type and concentration instead of a hot-rinse target. Always treat the manufacturer's figures as the authority, because a glasswasher, undercounter machine and conveyor unit may each differ. The FSANZ cleaning and sanitising guidance confirms that either heat or chemical sanitising is acceptable provided it is effective. How do you verify a dishwasher is working? A dial or built-in gauge tells you what the machine intends to do, not always what it achieves at the dish surface. Verification confirms reality. Practical methods include: Built-in temperature displays: Read and record the wash and rinse temperatures shown during a cycle. Thermometers and thermolabels: Heat-sensitive labels or a probe placed on a plate confirm the surface reaches the sanitising temperature during the rinse. Sanitiser test strips: For low-temperature machines, strips confirm the rinse contains sanitiser at the correct concentration. Routine servicing: Regular maintenance keeps heating elements, thermostats and dosing pumps accurate. Verification matters because faults are easy to miss. A scaled-up heating element, a failing thermostat or an empty chemical drum can leave a machine washing but not sanitising, while everything looks normal to staff. Why should you record dishwasher performance? Recording temperatures and checks turns a one-off glance into evidence of consistent control. A log shows an Environmental Health Officer (EHO) that the machine is monitored, and it reveals trends such as a rinse temperature slowly dropping over weeks, which signals a developing fault before it becomes a failure. A digital temperature monitoring log lets staff record wash and rinse readings each shift, while corrective action records capture what happened when the machine fell short, such as switching to a two-sink manual wash and sanitise until it was repaired. Tying these checks into a cleaning schedule makes dishwasher verification a routine task rather than an afterthought. What if the dishwasher is not reaching temperature? If a high-temperature machine will not reach its rinse target, or a low-temperature machine is not dosing sanitiser, stop relying on it for sanitising and switch to an alternative such as manual cleaning followed by heat or chemical sanitising in a three-sink or two-sink setup. Tag the machine, log the issue and arrange service. Never assume a warm cycle is good enough, because heat sanitising fails quickly below the required temperature. Keeping staff training records current ensures every team member knows both the correct manual backup method and how to verify the machine. For further reading, the FSANZ website and state resources such as NSW Health provide guidance on cleaning and sanitising equipment in food businesses. Setting up a reliable three-sink manual backup Every kitchen that leans on a commercial dishwasher needs a manual fallback for the day the machine fails, and in Australia the standard answer is the three-sink method. A machine that will not reach its sanitising rinse, or a low-temperature unit that has run out of chemical, cannot be trusted to sanitise, so knowing how to wash by hand correctly keeps you trading safely rather than sending out utensils that are merely warm and wet. The three sinks give you a dedicated station for each stage of the wash-rinse-sanitise sequence. Sink one, wash: Fill with hot water and detergent, scrape utensils first to remove food debris, then wash to lift grease and soil. Change the water once it cools or becomes dirty, because greasy, cold water cleans poorly and will later deactivate your sanitiser. Sink two, rinse: Rinse in clean, warm water to remove detergent and loosened soil. Leftover detergent carried into the next sink interferes with chemical sanitiser, so this step is not optional. Sink three, sanitise: Sanitise using either very hot water held at the temperature required for heat sanitising, or an approved chemical sanitiser mixed to the correct concentration and verified with a test strip. Give items the full contact time, then let them air dry on a clean rack rather than towel-drying, which can recontaminate them. A practical scenario: a pub bistro's high-temperature glasswasher stops reaching its rinse target on a Friday night. Rather than keep running glasses through a machine that is washing but not sanitising, the team tags it out of service, switches the pot sink over to a three-sink setup and keeps trading. They record the fault, the switch to manual sanitising and the service call as a corrective action , so when the EHO visits the following week there is a clear, dated trail showing the failure was caught and managed rather than ignored. Make sure your three-sink area is set up and stocked before you need it, keep sanitiser and test strips on hand, and confirm through staff training records that every shift knows the method. A backup that only exists in theory is no backup at all when the machine dies mid-service. Frequently asked questions What temperature does a commercial dishwasher need to sanitise? A high-temperature machine sanitises with a hot final rinse, commonly around 82C or above, following a wash near 60C. A low-temperature machine sanitises chemically at lower temperatures. Always follow the manufacturer's specification for your unit. How do I know if my dishwasher is actually sanitising? Check the built-in display, use heat-sensitive thermolabels or a probe to confirm the plate surface reaches the sanitising temperature, and for low-temperature machines use test strips to confirm sanitiser concentration in the rinse. Can I use a low-temperature dishwasher safely? Yes, provided the correct chemical sanitiser is dosed into the rinse at the right concentration and verified. Low-temperature machines are effective when the dosing system is maintained and checked regularly. What do I do if the dishwasher fails to reach temperature? Stop using it for sanitising, switch to a manual wash-rinse-sanitise process, tag the machine out of service, log the fault as a corrective action and arrange repair before returning it to use. How often should a commercial dishwasher be serviced? Follow the manufacturer's servicing interval, and in practice schedule professional maintenance at least annually, with more frequent checks in hard-water areas where scale builds up on heating elements and rinse jets. Descale regularly, inspect dosing pumps on low-temperature machines, and verify wash and rinse temperatures each shift so a developing fault is caught long before the machine stops sanitising. Confidence that every load is sanitised comes from monitoring, not assumption. FoodSafety HQ lets your team log dishwasher wash and rinse temperatures, run sanitiser checks and record corrective actions from a phone, building an audit-ready trail of machine performance. Explore dishwasher and temperature monitoring or start a free trial from our pricing page .