Keurig™ Descaling Solution is the only solution approved for Keurig® brewers aside from white vinegar and it’s completely odorless and descales faster than white vinegar. Brewer performance matters. That is why the descaling process is important - to remove mineral build-up that can happen over time. Depending on the mineral content of the water in an area, calcium deposits or scale may build up inside a brewer. Descaling every 3 to 6 months helps to preserve the heating element and other internal parts of the brewer that come into contact with water – by removing the calcium and scale build-up. Calcium and scale is non-toxic but left unattended, it can hinder your brewer's performance.