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Yep anything with abrasives in it "might" damage etching. The bubbles isn't an abrasive, just a cleaner. It's not going to make it mirror shiny, but will clean it up.

+1 and I'd just clean it with some scrubbing bubbles foaming bathroom cleaner, rinse, wipe down, have it honed and go with it. I have one that's etched and the bubbles worked well for the surface...