Keurigs (and all drip coffee machines, for that matter) can harbor harmful bacteria and mineral buildup in their inner workings. This can affect the machine’s performance, yes, but failing to clean—also known as “descale”—your coffee maker is unsafe. So if your Keurig hasn’t been performing its best, your coffee tastes off, or you can’t remember the last time you cleaned it, it’s definitely time to learn how to descale a Keurig. But where to begin with so many moving parts? We asked the experts at Keurig how to clean the machine in a flash. Below, find out how to get it sparkling clean and working better with the one household item you always have on hand: White vinegar. The process will take a few hours, so it’s the perfect rainy day (or quarantine) activity to help you get back to better tasting coffee. Here’s how to clean a Keurig in four simple steps.