
Hi Nicole, I had the exact same issue with my Keurig a few months back when it started brewing super slowly, probably from all the hard water we have here. I first tried using white vinegar like some online guides suggested, but it didn't really clear things up and left a weird taste that took forever to rinse out. What finally did the trick was getting a proper maintenance kit that included everything I needed to descale and clean it thoroughly.
I ended up using the Keurig maintenance kit and it worked wonders for me. The descaling solution in it effectively broke down the scale buildup without any harsh smells or residues, and it's specifically made for Keurig machines so I didn't worry about damaging anything. Plus, it comes with water filter cartridges that help prevent future buildup, keeping my coffee brewing fast and tasting great ever since.