Review on Keurig K-Duo Brewer Maintenance Kit - 3 Months Care, Regular, No Extras by Telly Roden

Easy to use but not very easy to clean. I didn't even realize I used a detergent. Expensive. Simply add vinegar to the water tank, run two empty brew cycles and turn off the device. Leave on for about 30 minutes, switch on again and run empty coffee cycles until the low water warning appears. Lift the water tank and fill it with clean water. Then perform empty coffee cycles until the water tank is empty. The cleaning has to be done and you saved money!