How often should I descale my K-Slim Coffee Maker?
You should descale your coffee maker every 3 months. Regularly descaling helps maintain the heating element and other internal parts that come in contact with water, and it prevents calcium deposits from building up and hindering coffee maker performance. Depending on mineral content of your water, you may need to descale more often. (Page 4)
From the official Keurig K-Slim Single Serve Coffee Maker manual, page 4
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