guest review Best Coffee Invention EVER - Started using these not long after buying my first Keurig, probably 10+ years ago! I fell in love instantly! From the easy use, just pop one into the reusable k cup & fill with your own FRESH coffee grinds, and put into Keurig to brew your cup of coffee. I am always repurchasing these before I run out. I don’t care for the actual k cups as they aren’t as fresh & is a lot of waste using so much plastic! If you haven’t tried these you are DEFINITELY missing out on your true cup of coffee! Buy now!