Commercial dishwashers are the backbone of any busy kitchen, ensuring clean, sanitized dishes quickly. High-temperature models use heat (180°F final rinse) to sanitize, meeting health codes without chemicals. Undercounter units save space but vary in throughput. For 2026, we examined five leading high-temp undercounter dishwashers. Key differentiators: racks per hour, voltage requirements, and tank capacity. Our picks help you match a model to your volume and kitchen setup.
RIOXC Commercial Dishwasher, High-Temp Undercounter Dishwasher, 40 Racks/Hr, 208-240V, Stainless Steel, CSA & ETL Certified for Restaurant, Bar & Café
RIOXC Commercial Dishwasher delivers 40 racks/hr at 208V, matching high-volume needs with reliable high-temp sanitization.
- 【Built for Busy Kitchens】Capable of cleaning up to 40 racks per hour, this commercial dishwasher keeps pace with high-volume operations. Designed for restaurants, bars, hotels, and catering businesses that require fast turnaround without sacrificing cleaning power.
- 【CSA & ETL】Built to meet strict North American safety and sanitation standards, this unit is ETL Listed and CSA Certified, giving you confidence in compliance, performance, and health code requirements.
- 【High-Temperature Sanitizing】Equipped with a Zoppas booster heating element, the high-temp rinse cycle quickly reaches commercial sanitizing temperatures, ensuring dishes, glassware, and utensils are fully sanitized and ready for use.
- 【Space Saving】Commercial dishwasher measures 24" W × 25" D × 32" H, weighs 158 lbs, and has a usable chamber height of 12". Perfect for kitchens, bars, and cafes with limited space.
Commercial Dishwasher restaurant high temperature, NSF Certified, 220v, 1or3 phase H60-S1
Commercial Dishwasher restaurant high temperature is NSF certified for 220V, 1 or 3 phase, offering flexibility and certification at a practical price.
- The Overall dimension is 28"Length X 32"Depth X55"Height, weighted 225Lbs. Useable chamber height of 16″. Low 0.74 Gallons per cycle rinse volume dish/glasswasher. Double skin body and door- avoiding loss of energy/ steam. Maximum capacity is 50 Racks/H.
- EASY-TO-USE: electronic controls with 3 cycles-70,100&130 seconds. Digital temperature gauges Suitable for all dish & glass washing applications. It used 208-240V electricity, either single-phase or 3-phase can be used, booster power is 5.5Kw.
- Rotating stainless steel wash & rinse arm with WIDE ANGLE FAN nozzle to maximize wash & rinse performance. Wash pump inlet strainer to ensure machine reliability.Optimum hygienic-deep drawn tank with coved corners (no welds)
- Includes chemical dispensers, fill hose, drain hose for quick & easy installation, it also come with Cavity Drain and Pumped rinse system.
Commercial Undercounter Dishwasher and Glasswasher, High Temp, 30 Racks/Hour, 3-Phase, 208V-240V, ETL Certified
Commercial Undercounter Dishwasher and Glasswasher combines washing and glasswashing in one high-temp unit at 30 racks/hr, great for dual-purpose kitchens.
- EASY-TO-USE ELECTRONIC CONTROLS: Can be changed into 1-Phase Configuration by electrician. need electrician to install which may cost high. Features 3 selectable wash cycles of 120, 150, and 180 seconds with digital temperature gauges for precise monitoring.
- HIGH CAPACITY & VERSATILE: Handles up to 30 racks per hour for all dish and glass washing applications, with a spacious 12-inch useable chamber height.
- ENERGY-EFFICIENT DESIGN: Double-skin body and door minimize heat and steam loss, while the low 0.66 gallons per cycle rinse volume conserves water usage.
- SUPERIOR WASH PERFORMANCE: Rotating stainless steel wash and rinse arms with wide-angle fan nozzles maximize cleaning coverage, backed by a wash pump inlet strainer for reliable operation.
Commercial Dishwasher, High-Temp Undercounter Dishwasher, 40 Racks/Hr, 208-240V, 1 Phase Stainless Steel Glasswasher Perfect Fit for Restaurant, Catering, Bar & Cafe
Commercial Dishwasher, High-Temp Undercounter Dishwasher matches the 40 racks/hr high-temp performance at 208-240V, a solid alternative to the top pick.
- POWERFUL COMMERCIAL PERFORMANCE: Wash up to 40 racks per hour with high-efficiency rotating wash and rinse arms. Designed to handle peak hours in restaurants, bars, and busy kitchens without slowing down
- HIGH-TEMPERATURE SANITIZING: Built-in booster heater delivers up to 180F rinse temperature for thorough, hygienic cleaning. Helps maintain foodservice sanitation standards with every cycle
- PREMIUM IMPORTED COMPONENTS: Engineered with Italian water pump, France electric components, and Japanese heating elements for long-lasting durability, stable operation, and consistent performance
- ALL-IN-ONE PROFESSIONAL SYSTEM: Equipped with built-in detergent pump, rinse aid pump, and drain pump-no external setup required. Ensures optimal chemical dosing and reliable cleaning results every time
Eurodib DSP4DPS Lamber Deluxe High-Temp Rack Undercounter Dishwasher, 30 Racks/hr, Stainless Steel, 208-240v, Silver
Eurodib DSP4DPS Lamber Deluxe High-Temp Rack Undercounter Dishwasher offers reliable 30 racks/hr high-temp washing with Lamber brand quality.
- SPACIOUS BASKET: There is the large sized 20”x20” square basket glass washer that is designed specifically for glassware. This will help you to protect the important glass items you place inside.
- STAINLESS STEEL CONSTRUCTION: The glassware dishwasher includes stainless steel wash and rinse arms (top and bottom), high temperature boosters, easy to use digital controls and water consumption as low as 1/2 gallon of water per cycle on most models.
- 2 MINUTES WASH CYCLES: This glass washer machine takes 2 minutes from start to finish, and both the detergent pump and the rinse aid dispenser will help you in great ways to make sure that you are working with a high quality machine.
- WASH AND RINSE TEMPERATURE THERMOMETERS: The thermocontrol device included in the glasswasher will keep the temperature at the right place even with nonstop work, and the extractable control panel will give you access to everything you need when using it.
Key buying factors
Higher ratings mean faster cycles, critical for peak times. 30 racks/hr suits moderate volume; 40 racks/hr for high demand.
Most need 208-240V, single or three-phase. Verify your kitchen's electrical service before purchasing.
Larger tanks (e.g., 3.5+ gal) maintain temperature better during heavy use. Check water heater recovery rate.
High-temp uses 180°F rinse; low-temp uses chemicals. High-temp is faster and leaves no residue, but costs more upfront.
Stainless steel is standard for durability. Look for 304-grade for corrosion resistance in wet environments.
Programmable cycles (light, normal, heavy) add flexibility. Digital controls simplify operation and diagnostics.
Types explained
Compact fit under countertops, ideal for small to medium kitchens. Typically 30-40 racks/hr.
Best for: Restaurants, bars, and cafes with limited floor space.Uses 180°F final rinse to sanitize, eliminating chemical costs. Faster cycles than low-temp.
Best for: Operations prioritizing speed and avoiding chemical handling.Large machines for high-volume operations. Dishes move through on a belt; 200+ racks/hr.
Best for: Large restaurants, hotels, and institutional kitchens.Specialized for glassware with lower temperature and gentle cycle. Often combos with dishwashers.
Best for: Bars and pubs needing spot-free glassware.Care & usage tips
Scrape food debris from racks and strainers. Wipe door gaskets. Run a rinse cycle after shift to prevent buildup.
Monthly descaling (or per water hardness) removes mineral deposits. Use commercial descaler; follow manufacturer instructions.
Check spray arms for clogs weekly. Remove and rinse under running water. Replace if damaged.
High-temp undercounter dishwashers offer the best balance of speed, sanitation, and footprint for most small to medium restaurants.
Always confirm your kitchen's electrical capacity before buying. A 208V model may underperform on 240V line, and vice versa.
Frequently asked questions
What is the difference between high-temp and low-temp dishwashers?+
High-temp uses a 180°F rinse to sanitize; low-temp uses chemicals. High-temp cycles are faster and leave no residue, but require hotter water.
How many racks per hour do I need?+
For a moderate restaurant, 30 racks/hr is enough. High-volume kitchens need 40 racks/hr or more.
Can I install a commercial dishwasher myself?+
Not recommended. Requires electrical (often 208-240V) and plumbing (hot water, drain) modifications. Hire a licensed contractor.
Do high-temp dishwashers require a booster heater?+
Many high-temp models have a built-in booster to raise final rinse to 180°F. Verify if your incoming water is preheated.
Are all undercounter dishwashers the same size?+
Typically 24-30 inches wide, 24-26 inches deep, and 32-36 inches tall. Measure your space before buying.