I messed up. You're using too much detergent.
Technology Connections10 HN recommenders · recommended in 8 months, 2021–2025
explainer · general · evergreen · 2021–2025 on HN
Technology Connections explains dishwasher detergent use, arguing people use too much and that powder beats pods and gels. It follows an earlier dishwasher video and covers enzymes, bleach, rinse aids and when salt is needed.
HN regards the dishwasher videos as must-watch practical explainers, linked whenever dishwashers, detergents or pods come up.
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12 comments from Hacker News
For those that haven't seen them, the two Technology Connection videos on dishwashers are must watch 1 - link 2 - ▶ this video
This[0] and this[1] are the ultimate dishwasher talks. From what I gather, European dishwashers heat the water, while American do not. [0] link [1] ▶ this video
Relevant - since there is more to learn about operating a dishwasher: Technology Connections' series on dishwashers - link ▶ this video link link
If you want to understand rinse aids better, I recommend this Technology Connections video (I've set the time stamp to the rinse aid section): ▶ this video
The follow-up to the video is worth linking to, if only because it explains why liquid detergent is crap: ▶ this video
I've gone back and forth with dishwashers my whole life, spending years with followed by years without, etc. and I finally am team dishwasher. There are a few tips I've learned, such as immediately rinsing a dish after using (I don't bother scrubbing), running the hot water for a minute before starting, using the pre-wash detergent and shine stuff appropriately. I also don't bother entirely filling it up to run it - which may seem wasteful, but I'd imagine filling it completely and having to rewash some percent of them ends up being more wasteful. Also, just like getting a manual dishwashing routine figured out, dishwashers are all different and need to be learned like any tool. Understanding where pieces are, which cycles run when, which compartments open and close and even how they do it, are all important. It really is best to think of it as a tool. Some useful videos: link ▶ this video
Here's an interesting video by Technology Connections on how most dishwasher "pods" are overkill: ▶ this video I see the bubbles foaming at the edges of my cups when I fill them with water, so I always rinse them before use. I would avoid most dishwasher detergent pods if I could, but I can't sell the idea to my significant other.
It's made by a company called Candy (EU) but unfortunately I don't have the exact model number. I can't say how it's going to hold up over time since I've only had it for around 2 years since I moved in. The only advice I have in this regard is making sure you're loading it correctly and not overloading it to the point where water spray can't reach your dishes. You've probably come across these videos already but just in case you haven't, Technology Connections released 2 videos on the topic of dishwashers that could be helpful: link ▶ this video
> Doesn't even need special tablets […] A thirty minute video explaining why tablets are bad and that you should simply use powder: * link Also, a follow-up video: * ▶ this video
Sadly, I don't think dishwashers will last 20 years any more. Since 2005, I'm on my third dishwasher. The first one lasted 9 years, the second one around 5 (with one under warranty repair). At some point the repairs/parts cost more than what the original dishwasher is worth. Regarding the algorithm, I'm not sure they make a huge difference anyways. FWIW, The Technology Connections channel on YouTube has a couple of pretty interesting videos on how dishwashers work and how to get the most out of them: link ▶ this video
Alec actually looked at that in a previous video of the dishwasher series. There is no "different dissolve rate" or "dispensed in sequence". ▶ this video
> America's Test Kitchen, back when it was good (AKA when Chris was in control), said that the easiest thing to do was just use the pods that had as many colors of liquid as possible. 1. I don't see any/much difference in pre- and post-Christopher Kimball ATK. The rest of the senior staff is basically the same, so I'm not sure what would have changed. 2. What exactly is so special about the colored liquids? What is the chemical make-up of them and their purpose? And are the liquids the same between difference brands? Is the red of one the same as the red as another? Or is the red of one have an equivalent to another (brandA->red = brandB->blue)? Because unless you know what the liquids are/do, you're just cargo culting. By some account the liquids to nothing practical: > Chemistry expert and former detergent chemist here, chiming in. Modulo some small semantic differences, you're 100% spot on. Functionally, there is zero difference in the formulations. Every powder dish detergent on the market comprises the same functional components, though the exact chemicals selected may vary. It's always some combination of detergent, anti-deposition agent, water conditioners, strong base, oxidizers, enzymes, buffers, "processing aids", and what I call "foo foo juice" - colors and fragrances. * ▶ this video