Keep your brewer in top shape with this Keurig descaling solution. Rinse away calcium buildup in Keurig K-Cup, 2.0, Rivo or Vue coffee makers for better tasting beverages. Descaling with this Keurig solution every three to six months to remove accumulated minerals keeps the brewer in top shape and extends its service life. Application: Descaler/Cleaner; Applicable Material: Coffee Makers; Chemical Compound: Citric Acid; Dirt Types: Calcium Deposits; Minerals.