Keurig users beware. I loved mine. Greatest thing since grits. Makes great coffee, especially for me since I'm the only drinker in the house. That regular cleaner they sell you for your occasional descaling process. Garbage. Doesn't tackle the biggest issue with Keurig. And it does not clean that tank. If you suffer from repeated sickness, you Keurig might be the source. The reason you get a hot cup so quickly a sealed internal little water holding tank that heats up quickly. The fresh water you put in is not the cup you are drinking. It only re-supplies that little tank. a tank which cannot be accessed without tearing your Keurig apart. I watched a You Tube video on this very thing. So, I filled mine with vinegar and Clorox and let sit for a couple days, then started flushing it with water and the stuff that came out of it OMG. Didn't even start clearing up until about 4th or 5th pass. Might as well have been brewing form shrapnel from a old sink drain. Nasty ain't the word. I tossed mine and haven't drank coffee for a Keurig or similar machine since. Broke my heart, but it had to be done.
keurig water tank mold - Bing video
keurig water tank mold - Bing video
keurig water tank mold - Bing video
I realize this can also be the case with drip coffee makers as well. But, if you do not clean properly, you are drinking some nasty stuff. I think I will be getting me one of those little metal stove top espresso brewers.