First off, I want to address the confusion that is obvious after having read a few negative reviews. Folks, read the instructions. These are NOT K-cups; these are PODS. This pack is compatible only with a certain line of Keurig and not with another. Hence these pods will work only with the Keurig brewing systems like my K-Compact. Standard K-cups are not compatible with the brewers and won't work with them. K-cup pods provide a better coffee extraction and produce less waste, thus being environmentally friendly. When some of us use Pods where K-cups should be used, of course the Pods "malfunction". This is just a matter of compatibility. The pods use a different operating system, so to speak. That being said, these Pods worked wonders in my Keurig K-Compact Brewer, the taste is awesome, bold and full of flavor. I had it straight without cream or sugar, and loved it. These are made with 100% Arabica Coffee, and I picked the dark variety. Now it's going to be one of my favorites.