Fantastic, I don't think mycoffee pot has ever been cleaner. No residue, coffee taste great and I didn't have to rinse it 4 or 5 times. I would recommend to all coffee lovers. Great price too, could be less than the bottle of vinigar I used to buy that left an icky taste behind if you didn't rinse, rinse, rinse and rinse again.
Descaling Solution for All Brands of Coffee and Espresso Machines By Housewares Solutions - 4 Fluid Ounce Bottle (2-Pack)
https://www.amazon.com/Descaling-Solution-Espresso-Housewares-Solutions/dp/B0176C4YXI
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