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Old 31.10.2015, 01:33
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Reoccurring residue on one dish

Hi EFers


I used one of my porcelain bowls several months ago to soak something in baking soda and vinegar. Since then, every time I wash it it comes out of the dishwasher with a crumbly white residue on it. The dishwasher does a perfect job on other dishes.

This occurs no matter which temperature I wash the bowl with. Even if I wash the residue off by hand and dry it (and it looks sparkly clean when put away), when I check it a day or so later, the residue is back.


Any ideas as to what the residue is and what I could do to get rid of it once and for all?
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Old 31.10.2015, 01:48
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Re: Reoccurring residue on one dish

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Hi EFers


I used one of my porcelain bowls several months ago to soak something in baking soda and vinegar. Since then, every time I wash it it comes out of the dishwasher with a crumbly white residue on it. The dishwasher does a perfect job on other dishes.

This occurs no matter which temperature I wash the bowl with. Even if I wash the residue off by hand and dry it (and it looks sparkly clean when put away), when I check it a day or so later, the residue is back.


Any ideas as to what the residue is and what I could do to get rid of it once and for all?

The chemical reaction of mixing sodium bicarbonate and acetic acid has probably stripped the the protective glaze off your bowl, resulting in the formation of kaolin over the surface.

Solution: don't use delicate porcelain for prolonged contact with strong chemicals; and to get rid of it for once and for all ....... bin the bowl.
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