That hand washed dishes should be rinsed with clean water?

[Drew79]

When hand washing, interested in how many people either -

Wash dishes then rinse with clean water, then put on the drainer to dry

Or
Wash dishes and put on the drainer with soap suds and dirty water still on them?

I don't like the idea of eating and drinking from something that's got some cleaning chemicals left on it, but my partner says I'm being fussy!

If you use the recommended 3mL fairy liquid per 5L of water, that gives you a concentration of 0.6 mL/L (approximately 600mg/L or 600ug/mL) in the washing bowl. Fairy liquid consists of 15-30% Anionic Surfactants, 5-15% Non-Ionic Surfactants, Benzisothiazolinone, Methylisothiazolinone, Phenoxyethanol, Perfumes, Limonene so over half is water but let's assume your 3mL of fairy liquid results in 300mg/L or 300ug/mL of surfactants in your dishwater.

Assuming you live in a household of four people and the dishes are done twice a day using 3 bowls of 5L each time that's 9g of surfactants in your 30L of dishwater or 0.03% (well below the level that is known to result in irritation which is ~1% for many surfactants). Assuming you then digested quarter of all the surfactant in the washing up liquid used each day (4 people in the house so worst case scenario) that would be 2.25g consumed by a small 45kg person would be a dose of 50mg/kg/day which is less than half the oral toxicity NOAEL of 100mg/kg/day.

I used the NOAEL of SLS which is the most common anionic surfactant used in household products.

Nanette Newman will be very cross with anyone who doesn't meet her standards of washing-up. She ain't mild but goes green!

It wasn't my glass. It was one standing on the bar with the prints pouting at everyone. I think it was Revlon. The glass was definitely changed!

Exactly...just cos it doesn't kill you doesn't make it ok. Im sure smearing shit on your face wouldn't kill you but its hardly pleasant

I don't...I'm equally grossed out by restaurant plates and cups

When watching an episode of how clean is your house Kim taught these 2 men to wash up, they stacked everything with soap suds on so she told them (now you need to rinse everything in very hot water!"

Kim Woodburn was an advocate of Vim scouring powder, which has been around since God was a boy. I have some but I don't need it often, thankfully.

It's not about that its about rinsing off dirty dish water from stuff you eat or drink from

Another thread on here is about silly things that give you the rage...seeing Nigel on eastenders washing up and putting stuff in the drainer with TONS of bubbles all over it!!!

Always rinse, was raised to and can’t imagine anything else now

I have always rinsed if hand washing-up; I don’t understand why you wouldn’t…it’s just doing the job properly. Though of course, with dishwashers, as used by the hotels, pubs, restaurants you refer to, the rinse cycle is part of normal operation and so there is no need to think about it. I first encountered a non rinser when sharing a house as a student, and so I now associate non rinsing with the slovenly student lifestyle ;)

You're probably thinking of acrylamides, not formaldehyde. Some foods can contain small amounts of formaldehyde naturally, but potatoes are not among them. Acrylamides form in starchy foods when they are cooked at high temperatures.

Are you talking about Sodium lauryl sulfate?

The NOAEL is determined by experiments on animals that last weeks or months. If a human is ingesting Sodium lauryl sulfate in small amounts over decades then the NOAEL is not much help in determining how much of a problem it will be. That could only be determined by a longitudinal cohort study and only then if they asked the right questions.

Skin and Eye Irritation: SLS can strip away natural oils, leading to dryness, irritation, or allergic reactions—especially in people with sensitive skin or conditions like eczema.

Cumulative Exposure: While most studies involve high concentrations not typical of everyday use, there’s concern about the long-term effects of repeated, low-level exposure. Research on this is still limited.

Toxic to aquatic life: Studies show that SLS can damage the cell membranes of fish and amphibians, impairing nutrient absorption and waste expulsion. In some cases, it caused 100% mortality in zebrafish embryos at higher concentrations.

Developmental effects: In early life stages of fish and amphibians, SLS exposure led to malformations, reduced hatching rates, and altered heart rates.

Community-level disruption: Even at low concentrations, SLS reduced populations of Daphnia magna, a key grazer in freshwater ecosystems. This could ripple up the food chain, affecting fish and other predators.

Ecosystem imbalance: By harming sensitive species like amphibians and microcrustaceans, SLS can shift the balance of aquatic communities, potentially leading to algal blooms or reduced biodiversity.

And you're happy to have this chemical in your gut? It might be only half the NOAEL but I wouldn't risk the possible long-term effect of harm to my gut bacteria or the cells lining the gut. I also don't buy dispersible aspirin containing SLS.

@SeaShellsSanctuary1

It's not about eliminating all risk, just the risk you can personally control.

If I wanted to eliminate all risk I'd never go out. I'd sit at home all day inhaling only air from a purifier, and bathe in dettol.

Another take on it; theres no real need to shower after swimming in a pool - it's only water and the level of chlorine is miniscule, and anything else in the water (!!) is so diluted it poses no threat. But, we all still do shower after the pool becuase to do otherwise is to not feel properly clean. That's how I view rinsinig after hand washing-up :)

Not sure about that! After swimming even after showering I can smell chlorine on me and it irritates some areas of my skin, particularly my nose for some reason!

Also, I'm not eating food off someone's post swimming chlorinated body... or are you?!

Why rule it out 😂😂

I'm with the common sense view that not rinsing is a lazy half arsed way of washing up by hand ;)