Disappearing glaze on dinnerware - suspected as dishwasher related

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#3250668 18-Jun-2024 22:13

Gurezaemon:

A surprisingly interesting discussion on the pros and cons of prewashing is available here.

Came to post just this, glad somebody else already has. The only nemesis of the dishwasher for me is oats and egg, everything else if fine.

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#3250692 19-Jun-2024 06:58

Dynamic: We bought what we believed to be reasonable quality dinnerware around 2 years ago. While not top-shelf, the average price per piece is roughly $20 so it's not exactly a $50-ish box set either.

Price and quality are loosely related. I got nearly 25 years use out of a cheap 8 place setting.

How much is dishwasher and how much knife & fork, do you eat a lot of things that require cutting on the plate?

Do you spread the use of the set by rotating the plates or are the same 2 or 3 used every time?

Is it a cheap detergent?

rp1790

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#3250701 19-Jun-2024 08:07

That YouTube video was fascinating.

richms

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#3250740 19-Jun-2024 10:12

I have had some of my coloured plates go a little dull looking over the glaze, but it was a pretty unsightly matt finish on the plate to start with. The glossy white ones are all still good as ever. I tried cleaning off the dullness with a magic eraser and was not really that successful for the dull whiteness but it did get out the darker lines that were left where knives cut on it. That is not a problem on the shiny white glazed plates.

None of them were expensive because I don't see the point in spending a fortune on consumables. Probably from kmart or else the warehouse from back when they sold cheap things.

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neb

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#3250794 19-Jun-2024 13:22

robjg63: Certainly dish washers have a fairly 'harsh' chemical component of the washing process compared to handwashing. Continuous exposure to the chemicals will eat away at the surface eventually. Two years at the rate you mention seems bit quick though.

Came here to say the same thing. Because dishwashers can't scrub dishes as you do with a hand wash they rely on fairly abrasive dishwashing powders and detergents to do the cleaning for them. If you've had glasses go milky over time from repeated dishwashing, that's abrasive powders/detergents at work.

eracode

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#3250871 19-Jun-2024 16:45

A couple of posters have said that dishwasher powders are/can be abrasive. Not wanting to be overly pedantic but that probably creates the wrong impression - abrasive means wearing away by rubbing or grinding. Dishwasher powders dissolved in water can certainly be chemically harsh but not abrasive.

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#3250878 19-Jun-2024 16:54

eracode: Dishwasher powders in solution in water can certainly be chemically harsh but not abrasive.

Powders in water can be extremely abrasive, that's how waterjet cutters work.

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#3250879 19-Jun-2024 16:56

neb:

eracode: Dishwasher powders dissolved in water can certainly be chemically harsh but not abrasive.

Powders in water can be extremely abrasive, that's how waterjet cutters work.

True - but not in the modest pressures used in dishwashers. Abrasive water jet cutters operate at up to 90,000 psi. Also the particles in an abrasive wj cutter are not dissolved in the water as the chemicals in a dishwasher are.

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#3250896 19-Jun-2024 17:06

Thank you all for the interesting discussion so far.

We normally use the Earthwise dishwasher powder. On the back of the pack it says "It is advised to rinse dishes first as food scraps can linger in dishwasher filter and block draining water and can also create unwanted odour." This stuff: https://www.earthwise.co.nz/products/dish/powder/dishwasher-powder-lemon.html.

We use the default cycle on the dishwasher which is labelled ECO and takes around 3 hours. The manual recommends 27g of powder. The Earthwise bottle recommends 20g. We would typically use 10-15g. Dishwasher manual here: E14DWX_User-Manual.pdf (euromaid.com)

No, we don't rotate the plates. Some are more 'worn' than others. The wearing is even, which suggests to me that knife and fork action is not the culprit. Slicing of any proteins is generally done before plating meals, so knives are only occasionally used at the dinner table.

We've not had any glasses turn even remotely milky.

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#3250909 19-Jun-2024 17:53

We have the same dishwasher. It doesn't do a very good job - constantly leaving grime on dishes. It was about $600 good proof you get what you pay for.

I needed a cheap replacement to tie us over until selling the house. I wish I'd gone second hand tbh.

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#3250917 19-Jun-2024 18:25

For us, this was a temporary one as well. We're reasonably happy with the results, possibly because I tend to under-load it (always leaving a gap between plates)

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#3250996 20-Jun-2024 07:22

Dynamic:

We've not had any glasses turn even remotely milky.

High-quality crystal glasses are likely to go milky in a DW because they can contain high volumes of lead which reacts with DW chemicals. Manufacturers like Waterford have historically said not to put their stuff in a DW - but some of their recent products have less/no lead.

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#3251026 20-Jun-2024 08:42

Dynamic:

Thank you all for the interesting discussion so far.

We normally use the Earthwise dishwasher powder. On the back of the pack it says "It is advised to rinse dishes first as food scraps can linger in dishwasher filter and block draining water and can also create unwanted odour." This stuff: https://www.earthwise.co.nz/products/dish/powder/dishwasher-powder-lemon.html.

We use the default cycle on the dishwasher which is labelled ECO and takes around 3 hours. The manual recommends 27g of powder. The Earthwise bottle recommends 20g. We would typically use 10-15g. Dishwasher manual here: E14DWX_User-Manual.pdf (euromaid.com)

No, we don't rotate the plates. Some are more 'worn' than others. The wearing is even, which suggests to me that knife and fork action is not the culprit. Slicing of any proteins is generally done before plating meals, so knives are only occasionally used at the dinner table.

We've not had any glasses turn even remotely milky.

I have tried various Earthwise products. Once. That's all.

They were all rubbish - dishwashing detergent - you have to use twice as much, and it still doesn't soften up the water. Toilet cleaner, similar. Not brave enough to try their dishwasher powder.

Bluntj

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Ultimate Geek

#3251052 20-Jun-2024 09:32

You should only put dishwasher safe crockery in your washer. Always check before you purchase new crockery etc that it is dishwasher safe. This isnt related to the price you pay, but its about the glaze etc that is used.

farcus

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#3251257 20-Jun-2024 19:09

trig42:

I have tried various Earthwise products. Once. That's all.

They were all rubbish - dishwashing detergent - you have to use twice as much, and it still doesn't soften up the water. Toilet cleaner, similar. Not brave enough to try their dishwasher powder.

This is true. . . their laundry detergent is rubbish. I believe it is one of the detergents that Consumer rated worse than just water alone.
I have used their dishwasher powder.
Not as good as finish or Active.
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