An important component of a regular maintenance regimen, Keurig® Descaling Solution is vital to keeping your Keurig® coffee maker performing at its peak, extending its life span, and letting you enjoy the freshest, most delicious cup every time you brew. Over time, non-toxic calcium deposits, called scale, can build up inside your Keurig® coffee maker. If left unchecked, these build-ups can hinder coffee maker performance over time. Keurig® Descaling Solution is a fast-acting, odourless liquid that helps to remove these calcium deposits and keep your coffee maker brewing at its absolute best, so you can go on enjoying your coffee, tea, hot cocoa, or any of the hundreds of delicious varieties of beverages you can make with your Keurig® coffee maker. To preserve the long-term health of your coffee maker, it's recommended to use Keurig® Descaling Solution every 3 to 6 months.