I prefer the 189 for any dark roast or medium roast which have no acidity. As I said in the review, the 200 burr creates a lot sweetness whenever there is acidity in the coffee; but falls flat when there is none. The 189 is a little cleaner and sweeter on roasty flavors, but doesn't give a nice rendition of

Heat makes the citric acid more aggressive. The hotter the water, the quicker it works. When I descale I try to drain my boilers as much as possible then let the machine refill from a container of citric acid solution. Then let it heat to temperature and turn it off to soak for a while. How long depends

The headspace afforded by a larger basket with a lower dose versus a smaller basket with a higher dose can make quite a difference in the extraction and timing. I switch between the IMS competition basket and the Strada basket on my GS3. You just have to work with them and find what works best with a given coffee and

No 102 experience but lots of info on the forum about 98 mizen. It's outstanding. It has body, very nice tempering of acidity for light roasts and still really good flavor separation. I can get floral bomb espressos. It's not blended in style but more so than A 98 HU ssp would be- which

How is the 200d burr for medium - dark roast espresso ?

Did some more tinkering and bought the Clippard SCPV-1-3 valve and the driver. I modified the existing Arduino code and got it to work. I'll post some pictures and roasts once I dial it in

Well, that make sense, about the boiler. My main problem is with what the gauge is reading... I guess it is usable if the pressure is accurate, but I don't feel like I can trust what it is reading when I is doing the strange paradoxical movements... there is no way that the internal pressure is spiking so high... right?

Have a Quick Mill Monza Deluxe that I started the descale process on using the option in the menu. Unfortunately, it just continues to pump water through. I stopped by turning the power off after filling the reservoir 4 times with water. Now when turning it back on, it wants to start the descale process and I have to select

ChatGPT 4 does a good job: "I removed and cleaned the boiler of my very old Gaggia - 1960/1970. The seal on the lid was a ring of asbestos. It has broken into pieces and can no longer be used. I don't want to use it anyway. My question is which sealing material would be best to use for

Still have my original Pharos and early Lido 2. Just travelled with the latter and enjoyed using it just as much as I did ten years ago when I first got it. I have fond thoughts of D and B and the passion they helped stoke in my coffee hobby. Cheers!