Choosing a Commercial Dishwasher for a Busy Kitchen

During a busy service, dirty plates can return faster than staff can wash them. A commercial dishwasher needs enough capacity to keep up, but it also needs to fit the tableware, available space, and way the team works.

Start with the busiest hour. Daily washing totals are useful, though they can hide a lunchtime bottleneck.

Work Out How Much You Need to Wash

Count the plates, bowls, glasses, and trays coming back during peak service. For a rack-based restaurant dishwasher, divide that quantity by the number of items each rack holds.

360 plates per hour ÷ 18 plates per rack = 20 racks per hour

That is the washing requirement. Staff still need time to scrape plates, fill racks, unload clean dishes, and handle other items. Leave some spare capacity for these tasks.

Check what the supplier’s cycle time includes. A 60-second cycle does not necessarily mean the kitchen will process 60 racks every hour.

Pick a Machine That Suits the Tableware

The choice of commercial dishwashing machine depends on what goes through it each day.

Glasswasher A good fit for bars and cafés with a regular supply of used glasses. Check the clearance for tall glasses and choose racks that hold them securely.

Undercounter dishwasher Useful where space is tight and washing volumes are modest. Make sure staff have somewhere nearby to put dirty racks and unload clean ones.

Hood type dishwasher Racks slide in from a loading table and out onto a clean table, reducing lifting. This layout suits restaurant and hotel kitchens washing repeated batches during service.

Rack conveyor dishwasher Loaded racks travel through the wash and rinse sections. It suits canteens, hotels, and catering kitchens where dishes return steadily in large quantities.

Flight type dishwasher Tableware is placed directly onto the conveyor belt. This type is commonly used for large operations with continuous washing demand. Loading, sorting, and unloading space need to be planned around the machine.

Utensil washer For pots, pans, mixing bowls, and bulky equipment. Check the internal washing space with your largest item, including its handles.

Plan the Space Around the Machine

When measuring for a commercial kitchen dishwasher, include the working area around it. Staff need room to scrape dishes, prepare racks, unload, and reach filters for cleaning.

Check the door or hood opening, service access, and connection positions. A machine may fit the floor space but still leave too little room to work comfortably.

Keep dirty dishes moving toward the machine and clean items moving toward storage, with as little crossing as possible.

Read the Consumption Figures Carefully

When comparing a commercial dishwasher machine, ask what the water and energy figures cover.

Water consumption per rack may refer only to fresh water used during the final rinse. Tank filling, pre-rinsing, and end-of-day cleaning add to the total.

Rated power, measured in kW, helps determine the electrical supply required. Energy consumption, measured in kWh, tells you how much electricity is used over a cycle or period. Compare figures measured under similar conditions.

Before ordering, confirm voltage, phase, frequency, water pressure, drainage, and any ventilation requirements.

Make Daily Cleaning Easy

Filters and spray arms need regular attention. Ask the supplier to show how they are removed, cleaned, and refitted.

Check the chemical dosing system, temperature displays, and sanitizing method required for your location. Correct loading and routine cleaning matter as much as the machine’s specifications.

Ask which spare parts are available, how technical support works, and what the warranty covers.

Put Installation and Running Costs in the Budget

Include plumbing, electrical work, tables, racks, chemicals, utilities, and maintenance alongside the machine price. An existing kitchen may need changes before a replacement can be connected.

For a Hengze quotation, send us your busiest-hour washing volume, the dimensions of your largest tableware, a layout or photos of the washing area, and your power supply details. This helps us recommend a suitable model and identify installation needs early.