The AquaTru Carafe Descaling Kit is the official branded maintenance kit for the AquaTru Carafe, containing six pre-measured packets of food-grade citric acid powder alongside three reusable descaling filters that slot in place of the regular filters, allowing the descaling solution to circulate through the internal system without damaging the filtration media. No other descaling method can replicate this process, as the dedicated descaling filters are unique to AquaTru and essential to protect the regular filters during cleaning. It is a shame that the powder comes in individual plastic sachets rather than a single refillable pot, which would reduce plastic waste and offer better value, given that monthly descaling is needed in hard water areas. Essential for all AquaTru Carafe owners, though note that using generic citric acid as a cheaper alternative may void your warranty.