Stop in for a cup of coffee

Rainy Day Auto said
I just found a half drank Dew behind a stack of books.

I have no idea how long its been there but I am sure going to finish it now. Cant waste any of that green goodness you know.

How can you tell when a Dew has gone bad? It's not like it turns green or sumpthin'...

Maybe just pour it into a glass and look for floaters (or sinkers)...