vIced Senior Member Joined: 2 Jun 2012 Posts: 1 Location: Aachen Expertise: I love coffee
Espresso: QuickMill Andreja Premium... Grinder: Mazzer Super Jolly
Posted Sat Jun 2, 2012, 12:41pm Subject: New used Quickmill Andreja Premium - temperature and flow issues
a few days ago, I acquired a used, five year old Andreja Premium 0980. Now I'm trying to get started with the E61 brew group, but fail miserably. Up to now, I had a Lelit PL41EM, where I produced really nice espresso results with my bottomless PF and a little of temperature surfing. Now, my espresso is quite sour - at first I thought about just letting the HX rest longer or even pull without a cooling flush, but none of that worked. The beans are freshly roasted, high-quality beans, which were excellent on my Lelit.
First problem - Temperature: I put a multimeter's thermosensor into the bottom of the portafilter, with a small distance to the metal and slightly off-center. The temperature during a flush reads about 90°C and drops after a short while (how much volume does the HX have?) - that should be more, I guess. My hot water wand output reads about 97-98°C. The boiler pressure peaks about 1.25 bar and mostly is a little over 1.0 bar.
Second - Water Throughput: I don't really get hissing sounds or a real stream out of the brew group, as in many E61 videos. This is how it looks: http://www.youtube.com/watch?v=lBnCvJOp1fc After a minute, I have got about 350 ccm of water in the cup.
Third - steam smells: The steam smells like wet stone or so. Any guesses? At the same time, the hot water output tastes fine. The inside of the steam wand looks clean.
Perhaps someone can help me to connect all these issues - or is it the fourth "M" - me?
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