Personally, I don't like gear that has shit floating in it. It's not a good sign.
If it's UG (which I would never suggest using), and you must use it, you can reheat and refilter it pretty easily to minimize your chances of problems. If it's HG just refilter it.
And, just for the record, in the over fifteen years that I've been using juice, I've never once seen anything floating in HG gear. So, that would immediately make me very suspect of the authenticity.