Ive worked in the service industry for years, just moved into a place with a dishwasher for the first time in a long time. Why does it take like 2 hours to run a load of dishes, when a commerical dishwasher takes only minutes?
In: Chemistry
Commercial dishwashers cost a few thousand, the one in your home is a few hundred. You get what u pay for!
There are two ways a commercial dishwasher sanitizes dishes:
1. Hot water (180 degrees where I live) – requires a booster outside of the machine to heat up incoming water as most water heaters on site only heat to Around 120 degrees so people don’t burn their hands when washing. The water passes through the booster, gets heated, then travels to the dishwasher. The dishes get sprayed just before they are finished the cycle.
2. Chlorine – a jug or pail sits outside of the machine and a calculated amount is auto-dispensed into the fresh water rinse cycle.
At home a relatively small heating element in a household dishwasher takes a really long time to heat water to a temperature. Required to sanitize.
Extremely hot recycled water at high temperatures will kill germs in a short period of time. Plus add the chemicals used to wash dishes as well.
I think commercial dishwashers use extremely hot water at very high pressure. Plus maybe something to do with drying time? I dont recall the ones from my misspent youth commercial dishwashering having a dry time.
Because in a commercial kitchen you have a dish bitch. Like someone literally thoroughly washes them first, a commercial dishwasher is actually really just a sterilizer. Plus they use a ton of water and totally causitc chems you couldnt use in a home environment. As well as this they have large heating elements and are always on.
source 20 years in commercial kitchens.
More thrust more energy more water more heat more chemicals. I am a dishwasher producer. There 8s no energy saving in industrial dishwashers. They are so powerful with more thrust and heat and they use a lot of strong chemicals.
Everyone has already pointed out the operating differences, but the costing of them is also of merit.
You get what you pay for.
Average price for a commercial dishwasher would be about $4000.
Average domestic dishwasher $500.
[removed]
Is there any reason I shouldn’t throw the cash at a commercial underbench (cafe type) dishwasher for my home kitchen renovation? I had a domestic one that shat me to tears with its 2 hour cycle.
Up to an hour? Try up to three hours.
Latest Answers