For good results, there's two releases of detergent, one for the pre wash and one for the main cycle. Detergent pods have kind of ruined the general dual compartment dishwashing ecosystem, though.
Uh, what? Must be a US thing, whatever the alternative is, because that's (those detergent, salt, perfume, whatever else tablets in a water-soluble wrapper are) all I've ever known. (UK.)
But even here in Aus now, there's a little compartment for pre-wash/rinse detergent... but nobody is aware of it that I've come across. That youtube video was revelationary!
Is that what the video was about? That tablets 'fly in the face of how dishwashers are supposed to work' because you also need rinse aid?
That's nonsense, how every dishwasher I've used has been supposed to work is you keep the salt topped up, the rinse aid topped up, and (supposedly optionally) use a tablet with each wash.
Most dishwashers are designed to have a little detergent in the first cycle and then most in the second cycle. The detergent from the first cycle becomes available to the water immediately, the detergent for the second cycle is the part that you put in the compartment.
If you want to know the details, watch the rest of the video. Or, if you don't want to do that, read your dish washer's manual. Maybe yours was designed without to forego detergent in the first cycle, because people have switched to pods anyway. Maybe it wasn't, and you can get a hygiene boost by using powder instead of pods.
If you use detergent pods, one of your cycles won't run with anything but water. If you put the detergent in the tub, the longer, second cycle runs without detergent. If you put the pod in the little compartment, the first cycle is much less effective than it can be.
Many machines are still designed for powder or gel detergents that you put into both compartments. You can get the same dishwasher performance by using two dishwasher tablets per run (one in the tub and one in the compartment) but that'll use up way more detergent than you actually need.
Rinse aid is for maintaining your dishwasher, that's something different entirely.
This is uncommon, possibly non-existent, in dishwashers sold in Europe in the last decade or longer.
I remember them having a pre-wash detergent compartment in the 1990s, but nowadays there's only a single compartment, for the main wash.
None that I've ever seen here.
> If you want to know the details, watch the rest of the video. Or, if you don't want to do that, read your dish washer's manual.
The video is.. I'm not its target audience. But I do actually have the manual: its 'programme phases' are 'pre-wash', 'wash' (different temperatures depending on setting), rinse, and dry. The detergent tablet is dispensed in the 'wash' phase. There's nowhere to put any to be dispensed in the 'pre-wash' phase. So, instead of 'some then most', it's 'none then all'. I've never known one work differently.
> Many machines are still designed for powder or gel detergents that you put into both compartments.
Right, again, not here: I don't have and have never seen one with two detergent compartments.
I still don't think tablets 'fly in the face of how the machine's supposed to work', there should just be big & little detergent tablets for markets with big & little detergent compartments.
Everywhere else with single compartments, a single tablet works fine, is exactly how the machine's designed to work, and they often even have a 'recommended brand' (for whatever commission).
Some comments here have mentioned that one can put it into the main compartment of the machine. Just squirt it in on the floor, if I understood correctly.
(Washing machines were of course the same - you put in liquid and powder in the draw at the top, rather than throwing in a tablet in with the clothes)
(For what it's worth, I still put liquid in the top of my washing machine! Tablets only seemed to appear for washing machines ~10y ago, at least that I was aware of, and still seem way more expensive /wash.)
Assuming you mean putting it directly in the "tub" versus in the compartment, no that's not true.
The initial fill - which will dissolve anything put directly into the tub - drains fairly quickly. The detergent in the compartment is only released after this point.
If there's nothing in the compartment, there won't be any detergent being used for the bulk of the washing - so regardless of form factor, it's important to use that.
But in addition - rather than instead, putting a small amount of powder in the tub will make the initial rinsing much more effective.
Good point though. A lot of people who use liquid (as opposed to a pod thing) put it in the drum anyway, in a reusable container that comes with some brands. I used to, until I bought a brand that didn't come with one of those on the lid; put it in 'that old-fashioned drawer', and wondered why I hadn't always.
I believe US (clothes) washing machines are usually top-loaders? And stored somewhere else, like a basement or garage?
In the UK most washing machines are front loaders, usually in the kitchen (large houses have a separate utility). There's a draw on the top to put various powders, but I don't remember ever using it and I've been washing clothes since the 90s.
I've never used them though, they seem to solve a problem that barely exists, and at quite a premium.
I suspect we're just much further along in this cycle compared to the US - where manufacturers have accepted that people like the tablets and that's that. There's still the opportunity to get better cleaning with this knowledge though.
It's worth noting there's no need for a pre-wash compartment. They do the exact same thing as if you just put the detergent into the "tub"