Selecting the right warewasher for my business
Calculating your rack per hour needs: Enter the information below and click "Calculate" to determine what your rack per hour needs are:
Use the chart below to determine which type of warewasher meets your requirements.
| Meals/hour | Washer type | Max racks/hour |
| Up to 100 | Undercounter | 35 |
| 100-500 | Door-type | 125 |
| 500-2000 | Conveyor | 450 |
| 2000+ | Flight-type | 1000+ |
Warewasher Types
Door Type
- Also known as pass-through, pull-down hood or stationary-rack
- Require dish tables for most efficient cleaning process
- Can be field converted to corner configuration
- Rack usually need to be purchased separately
- Meals per hour: 100-500
- Maximum racks per hour: 125
See Door-Type Warewashers 
Undercounter
- Resemble residential dishwashers
- Single pull down door for loading and unloading one or two racks
- Racks are usually included
- Rack usually need to be purchased separately
- Meals per hour: Up to 100
- Maximum racks per hour: 35
See Undercounter Warewashers 
Conveyor
- Racks pulled through each stage of wash cycle on chain conveyor
- Come with one to three tanks and varying features
- Some models have variable conveyor speeds for different load requirements
- Put anything in them
- Meals per hour: 500-2000
- Maximum racks per hour: 450
See Conveyor Warewashers 
Flight-Type
- Also known as rackless or belt conveyor
- Largest warewashers in the industry
- Dishes placed directly onto conveyor
- Have dedicated tanks to contain each stage of wash cycle
- Put anything in them
- Meals per hour: 2000+
- Maximum racks per hour: 1000+
Specialty Machines
Glasswasher
- Conveyor or submerged brushes (fit in sink)
- Offers delicate wash cycle for fragile glasses
- Smallest of specialty machines
See Glasswashers 
Circular Conveyor
- Add-on that allows for a quicker scraping, prerinse and removal of clean dishes
- Most customized wash system
- Ideal in larger self-serve areas and cafeterias
Pot and Pan Washer
- Similar to door-type machines
- High internal clearance
- Turbulent spray jets break up baked-on food and grease
See Pot and Pan Washers
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