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I have a new aluminium ravioli cutter which went into the dishwasher and
now has a dreadful black powdery film. I’ve tried scrubbing it with ordinary
detergent but all the little teeth in the cutter will need to be cleaned.
Is there any way you can contact/ask the manufacturer about that?
No, it is made in China so I don’t think they will be helpful. I have it boiling in
a bath of water and cream of tartar but I am not noticing that much of a change. I don’t have much aluminium in the kitchen but this was a gift so I would like it to be shiny by
Thanks for the idea though.
Do you know if it is one of those flat ones from Aldi by any chance? I have found our local Aldi extremely helpful and respectful of any issues with what they sell.
But it sounds like a reaction between the aluminium and the product you use in your dishwasher.It might be possible to ask the producer of the washing up product what the problem might be?
Aluminium forms a protective layer that keeps it from reacting with water and air, in a process called passive corrosion. The alkaline components of your dishwashing powder have destroyed the oxide protecting the aluminium metal, allowing it to react and form other products, such as aluminates.
The only thing I can think to suggest is to gently wipe it clean with a dry cloth, and store in a cool dry place to give passive corrosion another chance. Hopefully you can protect it from further damage.
A cellist and a scientist!! What a great combination!
I knew someone on ALS would know the answer! And it’s a very interesting one too.
This may be useful. 🙂