VibeSurgeon@piefed.social 2 weeks ago
It’s correct if in a country where the dishwasher lacks its own water heater.
Dishwashers in the U.S don’t have water heaters and therefore it’s beneficial to purge lukewarm water from the hot water line before starting the dishwasher, such that the water in the dishwasher is on average hotter and as such more effective at washing the dishes.
Dishwashers in Europe have water heaters and as such it’s entirely irrelevant to do it there
I live in the US and every dishwasher I ever owned had a heating element, and was capable of heating it’s own water as needed, depending on what cycle was selected.
Same with my washing machines, my current one even has a steam cycle.
I feel like if dishwashers without heating elements were ever a common thing here, it must have been many decades ago.
Its not so much about that, as it is about the fact that they almost always do an initial “clean-off-the-dirtiest-bits” cycle for around 10 minutes which pulls in (mostly) cold water if your line is not purged like the OP describes. And they don’t use the heating element for this initial cycle.
After the first 10 minutes they flush out the super dirty water with the dirtiest food bits and sauce and whatnot, fill in brand new water, and then run for the duration of the washing cycle (1hr plus) along with the heating element.
So flushing the cold water out of your kitchen water lines AND adding pre-wash detergent (such as some extra powder right in the door, outside of the main closable detergent compartment) helps a ton with this initial 10ish minute cycle.
AND adding pre-wash detergent (such as some extra powder right in the door, outside of the main closable detergent compartment) helps a ton with this initial 10ish minute cycle.
Yup, and that’s why some dishwashers include PreWash text somewhere on the side of the door. Sometimes it’s even on that little flap where you put the pod
I was so sure the answer was going to be no. TIL
So do dishwashers in North America they are just less powerful because of the 120 volt.
khannie@lemmy.world 2 weeks ago
Crazy. Mine only takes in cold water. Never even knew ones that take in hot water existed.
VibeSurgeon@piefed.social 2 weeks ago
You’ll be surprised to hear that U.S washing machines have the same setup, and this is why they talk about “wash cold” or “wash hot” instead of having specific temperatures on their washing programs like 30 C, 40 C, 60 C etc.
BorgDrone@feddit.nl 2 weeks ago
How do you do a 90°C wash? Surely the tap water doesn’t get that hot.
Melonpoly@lemmy.world 2 weeks ago
The washing machine heats the water, many go up to 95°C
VibeSurgeon@piefed.social 2 weeks ago
I wouldn’t know unfortunately, I’m in Europe.
TheBlackFang@lemmy.blahaj.zone 2 weeks ago
As a European that carefully checks the temperature levels indicated on the clothing before washing, I feel like I did it wrong - or at least overly complicated - my whole life now 😅
echodot@feddit.uk 2 weeks ago
It’s because the US electrical system sucks and they refused to upgrade it, although reasonably speaking it would be kind of impossible at this point. In order to be able to actually run a heating element you would have to have a special circuit fitted with a decent voltage.
raef@lemmy.world 2 weeks ago
it’s pretty trivial to combine two hots to get back up to 240. It’s common for industrial and some consumer appliances
khannie@lemmy.world 2 weeks ago
Ah that makes sense. Cheers.