keurig descaling solution new keurig keurig brewer performance matters! descaling is an important process that removes calcium deposits, or scale, that can build up inside a brewer over time. calcium and scale is non-toxic, but left unattended, it can hinder your brewer's performance over time. descaling should take place every 3 to 6 months to preserve the long-term health of your brewer. helps extend the life of your brewer (when used regularly) removes calcium deposits that can build up inside your brewer descaling is recommended every 3 to 6 months compatibility: compatible with all keurig k-cup, keurig 2.0, rivo and vue brewing systems.