Breville BES870BSXL The Barista Express Coffee .
I have been using the Brevill BES870BSXL The Barista Express Coffee Machine for a couple of weeks. We have very pure well water, though it is hard since it contains calcium and magnesium. This has no taste, but can affect the clogging of any water heating appliance. I mentioned this because the flavor of the espresso and the function of the machine can be affected.