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Frankfurt am Main, Hesse... 60327Undercounter Dishwasher
Save space and wash efficiently with undercounter dish machines for compact kitchens.
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Frequently Asked Questions
Everything you need to know before you buy.
An undercounter dishwasher is a compact commercial dishwashing machine designed to fit beneath a standard counter in restaurant kitchens, cafés, and bars. It cleans dishes using high-pressure wash arms followed by a sanitizing rinse cycle. High-temperature models sanitize dishes at around 180°F (82°C), while low-temperature units use chemical sanitizers. Most commercial units complete a full wash cycle in 90–180 seconds, allowing foodservice operations to process dishes quickly during busy service periods.
A commercial undercounter dishwasher can typically clean 20–40 racks of dishes per hour depending on the model and cycle length. Each rack generally holds 18–20 plates or multiple glasses and utensils. With cycle times between 90 and 180 seconds, the machine can wash approximately 350–700 individual dish items per hour, making it suitable for small restaurants, cafés, bars, and foodservice operations with moderate dishwashing needs.
A commercial undercounter dishwasher should typically have NSF certification to verify that it meets sanitation and public health standards for foodservice equipment. Many models also carry ENERGY STAR certification, indicating improved energy and water efficiency compared to standard units. NSF certification confirms the machine can safely sanitize dishes in restaurant kitchens, while ENERGY STAR certified dishwashers may use up to 40% less water and energy.
An undercounter dishwasher can wash plates, cups, glasses, utensils, and small trays commonly used in restaurant kitchens and cafés. Standard dish racks typically accommodate 10–20 plates or multiple glasses per load. Because the internal chamber height is usually around 12–14 inches, oversized cookware such as large stock pots or sheet pans may not fit, so those items are often cleaned using larger commercial dishwashing equipment.
A commercial undercounter dishwasher typically lasts between 7 and 12 years in restaurant kitchens when maintained properly. Regular maintenance includes cleaning filters, checking spray arms, descaling heating elements, and ensuring proper detergent and sanitizer levels. Most commercial units are built with stainless steel components and NSF-compliant parts designed to withstand frequent daily use in foodservice environments.
The main difference between an undercounter dishwasher and a conveyor dishwasher is capacity and throughput. Undercounter dishwashers typically clean about 20–40 racks per hour, while conveyor dishwashers can process 150–300 racks per hour in large-scale operations. Undercounter models are compact and designed for small restaurant kitchens, bars, or cafés, whereas conveyor systems are used in high-volume foodservice environments such as hospitals, hotels, and institutional kitchens.
Commercial undercounter dishwashers sanitize dishes using either high-temperature water or chemical sanitizers. High-temperature units rinse dishes at approximately 180°F (82°C), which meets sanitation standards referenced in the FDA Food Code. Low-temperature machines operate at rinse temperatures around 120–140°F and use sanitizing chemicals such as chlorine or quaternary ammonium compounds. Many commercial units are tested and certified by NSF International to ensure proper sanitation performance.
An undercounter dishwasher generally requires an installation space about 24 inches wide, 24–26 inches deep, and approximately 33–35 inches high to fit beneath standard commercial counters. The unit also requires connections to hot water, drainage, and electrical power, typically 120V or 208–240V depending on the model. Adequate clearance around the unit and proper ventilation are usually required to comply with local health and building regulations.
A commercial undercounter dishwasher usually uses between 0.7 and 1.5 gallons of water per rack depending on the machine’s efficiency rating and design. ENERGY STAR certified units often operate closer to the lower end of this range. Because wash cycles typically last under three minutes, these machines can process hundreds of dishes per hour while maintaining relatively efficient water and energy consumption for commercial kitchen operations.
A restaurant should choose an undercounter dishwasher when kitchen space is limited and dishwashing demand is moderate. These machines process around 20–40 racks per hour and fit beneath standard counters, making them ideal for cafés, bars, bakeries, and small restaurants. Door-type dishwashers can handle approximately 60–70 racks per hour and are typically used in larger restaurant kitchens where dishwashing volume is significantly higher.
HorecaStore is the fastest-growing online restaurant-supply company in the U.S. stocking 100,000+ items from True, Vulcan, Hoshizaki and more, ships free next-day nationwide, and beats competitors by 8–15 % with zero freight.
HorecaStore is the fastest-growing online restaurant-supply company in the U.S., stocking 100,000+ products from True, Vulcan, Hoshizaki and more in our own warehouse. We ship free next-day nationwide, beating competitor prices by 8–15 % with zero freight or middle-man markup.
