Live data from Hacker News

Gut epithelial barrier damage caused by dishwasher detergents and rinse aids

jacionline.org

61–70 of 420 posts

Re: Gut epithelial barrier damage caused by dishwasher detergents and rinse aids

#62

Rinse aid is completely unneeded if you properly maintain and use your dishwasher. I never use any, and my dishes are completely spotless. 30 years old dishwasher, super hard water. Specifically, you should: - always fill the salt of the dishwasher's water softener once it's empty. It cannot soften the water if it doesn't get cleaned by the salt. If the water is not softened you will get spots. EDIT: Apparently US fo…

For everyone confused by this comment: In some countries you might find dishwashers with a sort of built-in water softener: https://en.wikipedia.org/wiki/Dishwasher_salt It's not common in the United States. Some all-in-one detergent packets might contain some amount of dishwasher salt, though.

I'll give you an upvote for that little dive into Wikipedia. For those who haven't already swum as deep, the article on ion exchange resins[0] is also worthwhile. Turns out they are used for reprocessing spent nuclear fuel as well as softening water. Plus a few other things.

[0] https://en.m.wikipedia.org/wiki/Ion-exchange_resin

Re: Gut epithelial barrier damage caused by dishwasher detergents and rinse aids

#63

Rinse aid is completely unneeded if you properly maintain and use your dishwasher. I never use any, and my dishes are completely spotless. 30 years old dishwasher, super hard water. Specifically, you should: - always fill the salt of the dishwasher's water softener once it's empty. It cannot soften the water if it doesn't get cleaned by the salt. If the water is not softened you will get spots. EDIT: Apparently US fo…

> Apparently US folks often have dishwashers which don't soften the water. Ugh. In Europe I haven't even heard that such a thing exists!

I've only come across this in Spain so far. Never seen in Norway. But maybe I just haven't been paying attention. Then again, the water in Norway in :chefskiss:

Re: Gut epithelial barrier damage caused by dishwasher detergents and rinse aids

#64

Earlier quoted context omitted.

It is talking about professional dishwashers like the ones used in restaurants. So if you dine out on a regular basis you're probably getting exposed to this stuff even if you don't use it at home. PS I have no chemical expertise, but the article singles out alcohol ethoxylates as the cause of this damage. And while I don't use rinse aid in my home dishwasher, my Cascade dishwasher pods list "Isotridecanol Ethoxylate…

Many years ago I worked as a skivvy in a hotel kitchen. We never used any detergent for the crockery, it just used extremely hot water. The dishes seemed very clean and they dried very rapidly.

How... many... years ago? When I started cooking professionally in the 80s three-stage hand wash had already been required by health codes everywhere for decades. I've seen all kinds of shit but every kitchen at least has the setup and chemicals for that for health inspections if nothing else. In practice even the sketchiest restaurants will have quats even if they only fill it once a day.

Re: Gut epithelial barrier damage caused by dishwasher detergents and rinse aids

#65
post #3

So what does this mean for all of us who buy coffee at coffee shops every morning? Will this cause serious problems long term since we are consuming residues of their dishwasher chemicals? One potential solution is to always get your coffee to go, but that probably only partly solves the problem.

What are you getting from a coffee shop that has been through a dishwasher? The mug?

Re: Gut epithelial barrier damage caused by dishwasher detergents and rinse aids

#67
post #60

What the hell is rinse aid anyway

It’s just surfactants. Aka detergent. That doesn’t get rinsed off, it gets “rinsed on.” It’s function is to make water bead off the glass so that water spots are not left

Dishes also dry off faster as water beads off more.

Re: Gut epithelial barrier damage caused by dishwasher detergents and rinse aids

#68
post #3

So what does this mean for all of us who buy coffee at coffee shops every morning? Will this cause serious problems long term since we are consuming residues of their dishwasher chemicals? One potential solution is to always get your coffee to go, but that probably only partly solves the problem.

Oh I bet that is a frying pan fire thing. The cups are probably endocrine disrupters too with a plastic lining.

Hot beverage cups are coated with polyethylene which is one of the most inert polymers you can get. You could do much worse.

Re: Gut epithelial barrier damage caused by dishwasher detergents and rinse aids

#69
post #48

Earlier quoted context omitted.

Importantly, when they tested a household dishwasher, they didn't find the same issues: > In contrast, the residual substances on the cups washed in a household dishwasher with detergent B were not present at sufficiently high concentrations to exert cytotoxicity and impair the epithelial barrier function (see Fig E9).

If you use a rinse aid in your dishwasher I bet you’d find harmful results. Home detergent does contain AES (sulfates) but it gets rinsed pretty well. However if you use rinse aid, the rinse water itself has surfactants (AES, more sulfates), which will remain on the dishware- that’s the whole point actually, so the water beads off.

One of the most popular brands in the US, Jet Dry, has the ethoxylated alcohol mentioned in the article:

http://www.rbnainfo.com/MSDS/CA/FINISH%20-%20JET-DRY%20Rinse...

Post reply on HN