I'll give Hatchbox the benefit of the doubt and say it's probably just their silver (I reviewed it that way on Amazon, specifying that it was the silver that I was giving the bad review for and not Hatchbox in general). That said, the only reason that I even tried Hatchbox is that eSUN doesn't have silver. So, given this experience... odds are I won't be buying another color of their filament to see.