I wonder if some of the disagreement over this is because food becomes more stuck on the longer one leaves it, and so rinsing is needed if you are not going to start the dishwasher for another 12-18 hours?
Sometimes, dishes don't clean properly, usually, it is because the dishwasher is not loaded properly, or overloaded, but when it isn't, simple rinsing typically wouldn't have helped, and washing the dishes before putting them in the dishwasher makes you wonder why use a dishwasher in the first place.
I am aware that commercial dishwashers are a completely different things. These things usually run much more aggressive, faster cycles and they are more about sanitizing than washing, so vigorous rinsing may be necessary.
So I run it once every 3–4 days on the quick program when it is full. Some dishes will then have sat in it for up to four days ofc.
https://www.youtube.com/watch?v=_rBO8neWw04&t=0s
Dishwasher pods are heavily marketed in the US and actually wash more poorly compared to plain powder. With pods the pre-wash ends up running without detergent, so rinsing off dishes becomes necessary.
(I usually buy a month of access every couple of years or so. Mostly to see the updated dishwasher detergent reviews tbqh.)
https://twitter.com/ConsumerReports/status/13410672702195916...
Because of the quality of the water heater and the time it take for hot water to reach the dishwasher you have inconsistent washing.
Also most US brand of dishwasher rely on plastic components so I'm pretty sure they can't heat as well as full aluminium one.
For the most part (ignoring old/damaged washers) it's just a holdover from the older generation. My parents and their parents did it, and I expect many of my cohort follow through by example. However, I do not rinse and the results come out the same.
The only caveat being that you will still get dirty spots if you over fill or place poorly certain shaped things. This happens regardless of rinsing, and I believe contributes to the myth
It doesn’t have a removable filter, just some sort of grille in the back that I have to clean between loads and the shitty texture makes it grip crap like Velcro, not fun.
The tabs I use are environmental friendly. I.e. no phosphates, no palm oil, no chlorine. The wrapper dissolves in the machine (an algae-based polymer similar to what is used for capsules to deliver meds).
The packaging says:
15-30% bleaching agent based on oxygen.
<5% non-ionic surfactants
phosphonates, enzymes (protease, amylase), perfume
Also, some foods (egg yolk, dried porridge) don't come off in the dishwasher.
Is that a thing in the US? My current dishwasher is from 2015, stock standard Ikea.
I never had to rinse anything for it to come out sparkling clean. Even in the fast program that only runs 64mins.
The other day I had an Airbnb guest from NYC and I saw him rinsing. And when asked why he told me that was necessary because the dishwasher couldn't cope with it otherwise and stuff would come out dirty.
He looked perplexed when I told him no dishwasher I used for over twenty years required rinsing beforehand.
Is this 'rinsing requirement' an urban myth sticking around in some areas of the world?
Edit: I live in Berlin but have been living in Australia, the UK, Japan and Italy over the last two decades. No dishwashers in the apartments I lived in in those countries required rinsing either.