Keurig Descaling Solution Set of 3 for 14 Ounce Brewers

Can’t complain about its effectiveness. My Keurig brews well. I think the solution is a bit overpriced based on my guess as to what it’s made of. I have a tea kettle and the instructions for it say to use one teaspoon of Cream of Tartar in a full reservoir of water and bring it to a boil then let it sit for a while and finally rinse it out. For the electric tea kettle, the deposits on the heating coils definitely get visibly clean and the treatment doesn’t affect taste. Keurig doesn’t recommend anything but their solution so I’ll stick with it. The other may work too but I haven’t tried it and don’t plan to – just saying.