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Dishwasher Temperatures Tested for Safety

12/29/15 12:46 PM

Dishwasher manufacturers are faced with many challenges when it comes to designing and producing a top quality, full functioning dishwasher. The dishwasher must not only clean properly, but it must also reach sufficient temperatures during the washing cycles.

Dishwashers must reach certain temperatures in order to ensure that the dishes inside have been cleared of harmful bacteria or germs. Restaurants and food chains depend on commercial dishwashers to eliminate bacteria from plates and utensils, and this is achieved when the dishwashing equipment is working correctly.

There are primarily two different types of commercial dishwashers, high temperature and low temperature. While they both have advantages and disadvantages, it is all up to the buyer's preference or type of establishment. High-temperature dishwashers use heat to sterilize dishes, while a low-temperature dishwasher uses chemicals because the low temperature is not sufficient in killing bacteria. Both types still need to meet minimum temperature requirements to comply with regulations. No matter which type of dishwasher you choose, they are put through rigorous, mandatory safe temperature testing before being made available for purchase.

High-temperature dishwashers are tested by running an empty cycle and monitoring the temperatures throughout the entire cycle. The top rack of the dishwasher must be sprayed by water that is 180 °F or higher to meet National Sanitation Foundation regulations. A low-temperature dishwasher is tested the same way, but the water temperature only has to reach 120 °F - 150 °F before it complies with NSF regulations. Each owner or proprietor should test water temperature of their dishwasher before daily commercial use, they must also record the temperatures for HACCP compliance.

Dishwasher manufacturers must test their product before it can be sold to the public. All dishwashers must be tested and proven to reach and maintain the required temperatures before they reach the market. Once a dishwasher is purchased it is up to the user to check the temperature daily, to ensure it is working properly. 

Data loggers are the perfect tool to help manufacturers and commercial dishwasher owners to validate that the equipment is working correctly and appropriate temperatures are met. For dishwasher testing, a HiTemp140 data logger can be placed inside the dishwasher to monitor the temperatures inside for the duration of a cycle. The HiTemp140 is a rugged, completely submersible data logger that can accurately record high temperatures and withstand the environment inside the dishwasher during use. The temperature data is downloaded and stored to create reports as needed for product verification and HACCP compliance.

Dishwasher temperature monitoring is very important to the safety of consumers. Whether you are using a dishwasher in your home, restaurant or business you must always be sure it is working correctly and that foodborne illness are prevented by properly eliminating bacteria with high water temperature.

To learn more about MadgeTech data loggers for dishwasher studies and testing click here.

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