MP-AES Torch

We sometimes analyse samples that contain some iodine. We have a small build-up of a red color on the torch that the Aqua Regia doesn't remove. I would like to try to remove this buildup with ethanol since it is pretty good to remove the Iodine. I want to know is Ethanol bad fot the torch? I would make sure not to touch where the glue is.

Thanks for the help!

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