To me it just looks like some sort of stain like an oil stain or something. Perhaps it got some sort of stain on it before the final prep rinse.
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To me it just looks like some sort of stain like an oil stain or something. Perhaps it got some sort of stain on it before the final prep rinse.
I have the same item, and it had a few spots that looked a bit like grease. That was five years ago, and although fractionally more mellow the old DMT still goes alright.