I typically read reviews on Amazon before buying something. For some reason this time I didn't. I bought the Keurig K-Cup Reuasable and read all the directions. Then proceeded to make 7 different types of coffee with different types of grind (coarse grind to fine). Nothing worked. I also tried to fill it 1/4 way to full and nothing worked. The issue is that the machine attempts to fill the cup so fast, that the coffee plus the filter element can't drain the liquid fast enough. Hence the water overflows over the cup and drips down into your cup, making watered down coffee. Do not buy.