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Commercial dishwashers are only sterilizers. They don't do the cleaning that a residential dishwasher does. They expect as input dishes that are visually "cle

• davkan 3y ago
  Yeah, you need to pair it with a person who’s entire job is to spray and scrub the dishes before loading them. That said the high pressure sprayer before the dishwasher is enough to get almost everything off dishes except hardened melted cheese. If it didn’t spray everywhere I’d want one for my house.
• eru 3y ago
  > The 60 second cycle just cuts remaining grease then kills all the germs with harsh chemicals and then rinses. Are you sure they actually use harsh chemicals? I thought it's mostly about the extra heatL
  • amluto 3y ago
    There are low temperature dishwashers that sanitize with a sanitizing solution (generally chlorine based) and high temperature dishwashers that sanitize with heat. If I ran a restaurant, I would go with high temp to avoid residual chlorine taste. And I would skip the rinse aid, thank you very much.
    • eru 3y ago
      If your water is hard, rinse aid helps a lot to make the glasses and dishes look good. For someone running a restaurant, that might be useful.
      • mschuster91 3y ago
        > If your water is hard, rinse aid helps a lot to make the glasses and dishes look good. Or if you want a decent job, install a reverse-osmosis water filtration system in the central water piping that takes out all the nasty mineral salts responsible for the hardness and limescale. Also makes cleaning way easier.
        • eru 3y ago
          Some people like the taste of hard water. Famously the Romans liked to found cities where the water was hard. But the preference persists for some people today. (And the reverse osmosis thing is a big investment, and might not be feasible when renting.)
        • amluto 3y ago
          It would be nifty IMO if dishwashers had two water feed lines, one for wash and one for rinse. Then plain water could be used for washing and expensive softened or other low-TDS water could be used for rising. Or bonus points for a dishwasher that uses RO concentrate/brine for washing.
    • danw1979 3y ago
      My recently purchased residential dishwasher actually says in the manual that you can use a 10% citric acid solution as rinse aid. Bought a 5kg bucket at the weekend and made some up - works a treat.
• amluto 3y ago
  > Commercial dishwashers are only sterilizers. They don't do the cleaning that a residential dishwasher does. I “learned” this in college, too. And then I did a bit more research and discovered that the dishwasher was very much capable of cleaning, but only if it had appropriate detergent or cleaning solution. But commercial dishwasher cleaning solution is nasty and highly basic, so apparently whoever was in charged decided students shouldn’t have access to cleaning solution. So we only had sanitizer, and the dishwasher only sanitized. After a discussion with the facilities department, I got cleaning solution and its feed line, and the dishwasher magically started washing dishes! One should still spray the food off first, but commercial dishwashers wash just fine.
  • sneak 3y ago
    I worked in a commercial kitchen that had all 3 (wash, sterilize, rinse) of the fluids properly stocked. (In fact, they didn't own the dishwasher or fluids, but subscribed to a machine rental, maintenance, and refill contract, which was just "x loads for y dollars per month, rain or shine", to make costs predictable for the low margin small restaurant.) You still need to thoroughly clean the dishes before they go in, otherwise in 1-2 loads the filters are completely clogged. They are absolutely not designed for dishes to go in that have any residual food on them. In a residential setting if you're going to clean the dishes to that extent, you should just finish washing them, as it's basically the same amount of time for a household's amount of dishes. The only time a commercial dishwasher makes sense is if you need to do dozens of plates and cups and kilograms of silverware. Commercial dishwashers are a bad choice for residential use.