The rubber plugs are not important. In the same shipment I will get both colors. The best way to identify the fakes is the label. On the originals the label is cut off right at the blue, top and bottom. The fakes have a white border all the way around the blue. Also, the exp date and lot are stamped pretty hard into the label on the original where you can feel it, while the fakes are smooth. By the way, really good stuff. Pretty much my favorite if I can get enough of it.
Shredded