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Title: Metallic like effervesence when boiling plain water
Review: I use this to heat and keep water hot throughout the day for tea, etc. There is grey metal like effervescence from the heating element. You eventually see particles in the water; and when you run you finger on the element it picks up a grey powder like slurry. This would not be noticed when making coffee because of the dark color.I had bought two, returning the first thinking it was a one-time defect, but same thing happened with the second one.
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