While waiting for other responses, you could check out the chart that Yale Appliance posted last February: https://blog.yaleappliance.com/fastest-dishwasher-cycle-times

Thank you!

Note that the LG Studio SDWB24S3 is very similar to the listed SKS SKSDW2401S and is $400 less. SKS is an LG brand.

Unfortunately, the Thermidor model that was listed is no longer in production.

I have found the Miele Professional line that offer a six minute cycle. PFD404U240 is the model.

That Miele PFD404U240 is $6700.

If I am not mistaken, those Miele Professional models require a 240 V power source. This is likely why they are able
to perform very rapid dishwashing along with very high water temperatures. And so you would need to take your home‘s electrical system capacity into account were you to invest in one of these. I have not checked to see what the amperage rating is on these models, but that too could be a factor when considering your homes overall electrical load capacity.

>>>" those Miele Professional models require a 240 V power source . . . not checked to see what the amperage rating is on these models. . ."<<<

240v/30Amp and requires a NEMA twist Lock L6-30 outlet.

With that plus needing a dedicated hot water line along with external feeds for detergent etc., these machines don't seem to be what John called "residential friendly." But, no more so than Miele's commercial Little Giant (LiGi) washing machines which nonetheless have had something of an enthusiast following here on Gardenweb's Appliances and Laundry Room forums.

I currently have an old Hobart high temp undercounter warewasher, so there’s 240v 40A there, I’d just have to change the receptacle to a twist-lock.

The Hobart is succumbing to old age and NLA parts, so I’m trying to see what alternatives there may be.

Basically, a new Hobart high temp costs $7,000-9,500; a used one costs $2,500-3,500 plus the crapshoot; the Miele Professional costs $6,700.

My old Hobart only cost me $250 from a friend’s bar going out of business . . .

That Hobart cost you $3200 for a 2022 model? Not bad. A couple of years ago when our church looked at getting one, the price (IIRC) for a new base-level Hobart "Centerline" undercounter high-temp model was about twice that.

I was pretty pleased. It is a Hobart LXeR Advansys, the high-temp with steam energy recovery. The current equivalent model, the LXnR, costs about $10,000. Mine is one model back, but the main thing they’ve added is WiFi, which in my opinion is mainly for people managing a whole fleet of machines at multiple locations.

FYI.

For anyone thinking about doing this (putting a commercial undercounter dishwasher in your home kitchen), aside from the electrical circuit needed, the other issue is the chemical bottles. My new Hobart uses three chemicals: detergent, rinse aid, and delimer. They come in gallon bottles, which are supposed to be placed on the floor next to the machine, with 1/4” plastic lines running to the bottles. I didn’t build my kitchen with space for these bottles, but I can fit them under the sink, and so can most people. I have a more elegant solution in mind, which I’ll show if it works.

From the Hobart LXeR Advansys spec sheet:

• "Capacities
• "Cycle Time (seconds) . . . . . Light 120 / Normal 146 / Heavy 275
• "Racks per Hour . . . . . . . . . . . . Light 30 / Normal 24 / Heavy 13"

What consumer needs to load his dishwasher 24 times per hour?

I find it extremely useful, for prep/cooking and after large dinners.

Prep/cooking: we do a lot of cooking and baking. With the Hobart, the dirty workbowls, pots, saucepans, sheet pans, food processor bowl/blade, mixer bowl/tools, whisks and spatulae, etc don't pile up in the sink and on the counters. As each is used, it gets blasted with the pre-rinse spray and set on the rack, when the rack is full the dishwasher is run, a couple minutes later the rack is pulled out and all that stuff is clean, hot, quickly dry, and put away. When the cooking is done, so is the clean up.

Large dinners: my spouse likes to set each place with everything when we have big dinner parties. Three stemmed glasses plus water glass, three forks, two spoons, knife, two or three plates, soup bowl, etc. We have dessert forks and fish forks and salad forks, for heaven's sake. Multiply by 10 or 12, add all the serving ware and utensils for six+ courses and the desserts, don't forget the pre- and post-aperitif glasses, and all the dirty stuff that piled up while cooking, and that's probably three regular dishwasher loads if you're really good at Tetris. I can get that whole dinner washed up in less than half an hour.

So on dinner party nights, say the last guest leaves at 11 pm. With dishwasher plus handwashing, we were up until 2 or 3 am doing the dishes. Now I'm in bed by midnight.

I'll run the machine a dozen times while cooking, maybe a dozen times for after-dinner cleanup.

Negatives abound, of course. The commercial machines are expensive and hard to get serviced, you have to run a new circuit, they use a lot of electricity, and it is an active clean-up process, more work than simply dropping a soiled dish into the dishwasher. I think the negatives outweigh the positives for most households, but I just love it. Other people have nice cars, I have a nice dishwasher. Gosh that sounds rather pathetic :-)

As far as I am aware, new Frigidaire models claim quickest cycle on the market. Thiugh, i do not recommend them at all.