I'm familiar with Anchor Steam beer, but this is the first time I have tried their Porter. This is in the robust style, and is very roasty - nearly a Stout. It poured almost black, with a thick, caramel colored head. When viewed in the light, it is a rich mahogany color. I am very impressed with Anchor's Porter - one of the best I have ever had. This might even warrant a six-pack one day! If you're a Porter aficionado, this one is definitely worth trying.