Industry Kitchens stocks DIHR commercial warewashing machines — including undercounter glasswashers, undercounter dishwashers (GS series), hood-type passthrough dishwashers (HT and Optima series), and pot washers. Made in Italy by DIHR, an Ali Group company, with 14 international certifications and production of one machine every 3 minutes. Browse the range below or speak with a product specialist for expert recommendations.
DIHR
Why Choose DIHR Commercial Dishwashers?
- Italian Manufacturing at Scale: Founded in 1985 in Castelfranco Veneto, Italy, DIHR covers the complete manufacturing process — from stainless steel cutting and fabrication through to final product assembly — producing one machine every 3 minutes with consistent quality across the full range.
- 14 International Certifications: DIHR holds 14 international certifications, placing it among the most qualified companies in the warewashing industry — important assurance for operators specifying equipment for HACCP-compliant foodservice environments.
- Broadest Range Available: DIHR's range spans undercounter models and pot washers through to rack and flight-type machines — covering every venue size from boutique café to large-scale institutional kitchen with a single manufacturer and parts network.
- Low Operating Costs by Design: DIHR's vision is to minimise the use of environmental resources and customer operating costs — all equipment is designed to ensure top sanitation levels while minimising energy, water, and chemical consumption.
Buying Guide: DIHR Warewashing Range
- GS Series — Undercounter Glasswashers & Dishwashers: The GS series undercounter machines feature a wide loading capacity granting high performance at a reasonable price, with optional water softener, detergent dispenser, and drain pump — the specification choice for bars, cafés, pubs, and restaurants needing a compact, reliable underbench unit.
- HT Series — Hood-Type Passthrough Dishwashers: DIHR's HT range covers mid-to-high volume operations requiring passthrough workflow — models include the OPTIMA HR with energy recovery system that pre-heats incoming cold water using captured steam, reducing energy consumption and improving operator comfort at the wash station.
- Optima Series — Connected Warewashing: The Optima line features connected glass and dishwashers with clean water technology — IoT-enabled monitoring and performance data for operators running multi-machine or high-cycle operations who need real-time visibility over wash performance and consumption.
- LP Series — Rack & Pot Washers: The LP series features the PLUS system for stabilised rinse, guaranteed temperatures, consumption, and pressure monitoring — suited to institutional kitchens, aged care facilities, bakeries, and butcheries requiring heavy-duty pot and utensil washing capability.
Care & Maintenance
- Clean the wash tank strainer filters at the end of every service — DIHR machines use progressive multi-stage filtration and blocked strainers are the primary cause of rewash and reduced cleaning performance across all models in the GS and HT series.
- Descale the boiler element and wash arms weekly if your mains water hardness exceeds 150 ppm — scale accumulation on heating elements increases energy draw and can void the machine warranty; fit an inline water softener where hardness is a persistent issue.
- Inspect and clean the door gaskets monthly — DIHR's double-skin door construction minimises heat loss and noise, but compressed or damaged gaskets allow steam escape, reduce wash temperature consistency, and compromise HACCP documentation accuracy.
- Check detergent and rinse aid dosing accuracy monthly using a calibrated test strip — incorrect chemical concentrations are a common cause of spotting, film, and customer complaints that operators often misattribute to a mechanical fault rather than a dosing issue.
FAQs — DIHR Commercial Dishwashers
What is DIHR and who manufactures their machines?
DIHR was founded in 1985 in Castelfranco Veneto, Italy, and is a leading manufacturer of glass, dish, and warewashing machines for commercial applications, distributing equipment across more than 120 countries. DIHR is part of the Ali Group — one of the world's largest foodservice equipment groups. All DIHR machines are manufactured in Italy with full in-house production from raw material to finished machine.
What is the difference between the DIHR GS series and HT series?
The GS series are undercounter machines — compact front-load glasswashers and dishwashers suited to bars, cafés, and small restaurants where space and throughput requirements are modest. The HT series are hood-type passthrough dishwashers — the operator lifts the hood to load and the machine starts automatically on hood closure, suited to mid-to-high volume venues running 100+ covers per service. The HT OPTIMA HR models add an energy recovery system that captures steam to pre-heat incoming rinse water, reducing running costs on high-cycle operations. Confirm which series suits your venue with our product specialists.
Are DIHR dishwashers compliant with Australian food safety standards?
Yes — DIHR holds 14 international certifications and is among the most qualified companies in the warewashing industry. DIHR machines are engineered to reach the final rinse temperatures required to meet Food Standards Australia New Zealand Standard 3.2.3 and support HACCP critical control point documentation. Always confirm final rinse temperature at commissioning with a calibrated probe thermometer.
What power supply do DIHR undercounter dishwashers require?
DIHR GS series undercounter models are single-phase machines, typically running on a standard 10A or 15A single-phase circuit — making them accessible for venues without a dedicated high-amperage circuit or three-phase switchboard. HT series hood-type machines generally require a three-phase power supply. Always confirm the specific model's electrical requirements with your licensed electrician before purchase, as switchboard capacity varies significantly between premises.
How to Choose the Right DIHR Dishwasher
A quick step-by-step method for selecting the right DIHR machine for your operation.
- Step 1 — Identify your ware type and volume — Glassware-only operations suit a GS series glasswasher; mixed crockery, cutlery, and tray operations need a dishwasher. Count your peak covers per service and divide by 1.5 to estimate minimum racks-per-hour required — choose a model rated at least 20% above this figure.
- Step 2 — Undercounter or hood-type? — Under 100 covers per service or limited floor space: specify a GS series undercounter. Over 100 covers, or where a production-line dishwash workflow is required for HACCP clean/dirty zone separation: specify an HT series passthrough.
- Step 3 — Check your power supply — Confirm single-phase or three-phase availability with a licensed electrician before specifying any hood-type model. GS series undercounter machines are single-phase and accessible in most commercial premises without switchboard upgrades.
- Step 4 — Consider energy recovery and connectivity — For operations running high daily cycle counts, the OPTIMA HR energy recovery models reduce running costs by capturing steam to pre-heat rinse water. For multi-machine or managed operations, the Optima connected range provides IoT monitoring of wash performance and consumption data.
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