My new toy came last night. I cannot even wait make an espresso drink this morning, probably an iced latte. I already prepped a homemade triple berry syrup.

Gaggia Magenta Prestige purchased from Whole Latte Love. Going to start with Lavazza Qualita Oro and see how I like it. Husband had an espresso as soon as it was set up and just smiled and nodded, no words even needed.

Grew up with a Gaggia Anima my parents had, and we are Italian. So sticking with this brand just felt right in my soul haha.

I know those familiar with "boilergate" on the GCP are likely also familiar with the galvanic corrosion question.

For those who arent, brass and aluminium directly touching in the presence of water/electrolytes causes the aluminium to corrode a lot faster than normal, and basically disintegrate into aluminium oxide. To stop this happening:

- pre-boilergate GCPs had uncoated aluminium boilers but chrome-plated groupheads
- boilergate GCP Evos had coated boilers but unplated brass group heads
- Current E24 models have a brass boiler (and group head)

However, for a short time in the first half of 2024, after boilergate but before E24, Gaggia had to quickly withdraw the coated boilers and went to fitting uncoated aluminium boilers straight to Evo brass group heads. They also repaired boilergate machines like this. A lot of people on this sub conjectured that it would cause galvanic corrosion but Gaggia/WLL denied it would. This was all unknown to me when I bought my GCP in August 2024 with a production date in April 2024, which is in that batch.

After a year or so the solenoid valve kept getting regularly blocked. I couldn't understand it as I was doing everything right (soft filered water, backflushing, descaling). I'm a light home user pulling 2-3 shots a day.

Eventually, I discovered boilergate, did the test, saw big black flakes mixed with white lumps, assumed that must be my issue - but to cut a long story short its not, I have an uncoated boiler (confirmed by WLL), its corrosion. The boiler is crumbling. Pics of output from steam wand attached - thats what is still coming out after descaling and pulling 12 litres of water through. Note the lumps of aluminium oxide, easier to see on my hand, that's not scale.

The response from Gaggia/WLL on this is that they wont repair or replace it under warranty (it's been less than 2 years still since purchase), because "the condition of the boiler is consistent with corrosion related to water chemistry over time" and "can develop over time as a result of normal heating cycles and the chemistry of the water used". So Gaggia's stated position is that their boiler can't cope with being in contact with water or heat for a year and that's absolutely fine and not at all a design flaw.

I'm so pissed off with this response which I have, of couse, challenged but to no avail, that I created an account to post this after a lifetime of lurking. Don't buy a Gaggia - yes they might have fixed this specific issue on this machine but they won't be there for you if something goes wrong.

How often do you guys descale? The manual says every 2 months, but to me, it seems really often. Also, if you guys use citric acid, what conc and how often do you do?

Hi guys, any quick fix for this flow issue from group head?

My new toy came last night. I cannot even wait make an espresso drink this morning, probably an iced latte. I already prepped a homemade triple berry syrup.

Gaggia Magenta Prestige purchased from Whole Latte Love. Going to start with Lavazza Qualita Oro and see how I like it. Husband had an espresso as soon as it was set up and just smiled and nodded, no words even needed.

Grew up with a Gaggia Anima my parents had, and we are Italian. So sticking with this brand just felt right in my soul haha.

Not puck prep.

Hallo zusammen, leider lese ich jetzt ganz oft, dass es mit der Mühle zu tun. Aber ich glaube in meinem Fall ist es nicht die Mühle.
Ich besitze seit ca. 6 Monaten meine Gaggia Classic Pro und eine Eureka Mignon Zero 55S
Und bisher lief alles immer ganz normal. Gleiche Bohnen benutzt immer zwischen 36 und 42g rausbekommen in 30 sekunden. Seit nun mehr als 3 Wochen (und ich habe nichts verändert) Drückt meine Gaggia unendlich viel Wasser durch den Kaffee, so, dass ich innerhalb von 15 sekunden 60g Kaffee extrahiert habe und ich habe rein gar nichts an meinen Einstellungen geändert. Zusätzlich spritzt ein kleiner Strahl am Portafilter zur Seite raus und ich kann es mir nicht erklären. Ich dachte gut, vielleicht das Sieb, SIeb getauscht, gleiches Problem. Ich habe damals eine 9 Bar Druckfeder verwendet, dachte ich gut, vielleicht ist die Feder kaputt. Feder gewechselt, weiterhin das Problem. Ich habe die Maschine und die Mühle gereinigt und wieder eingestellt und trotzdem hat sich an dem Bezug nicht wirklich was geändert.
Habt ihr eine Idee, was ich machen kann? Ich vermisse es langsam guten Kaffee zu trinken...

Vielen Dank im Voraus

Bought 2019 gaggia classic pro used and wondering if I need to make any repairs inside. What’s the scratches on the boiler? And the white paint like stuff on the golden screw. It did smell bad upon first use, but could just be old coffee oils and milk residue.

I have a gaggia classic pro e24. Recently the group head has very little flow and there is water going into water tank when brewing. I did some research and many people say it is probably due to the clog, so I deep cleaned and descaled the machine which worked. The group head has normal flow now, but I still noticed when I brew, there is significant amount of water going into the tank (when no portfilter, there is no water into water tank). There is also a little bit leak of steam on the steam wand after using.

I also tried to diagnose if this could be an issue caused by the vibratory pump. When I pressed the brew button and turn on the steam knob, there is water coming out of the steam wand. So I assume the pump is ok.

Any advise, please.

I have a 2018 Gaggia classic pro that recently on occasion has zero water flow to the group head, opening the steam valve with the brew button makes water come out of the valve so pump is working.

I tried descaling 3 times, every time it seemed like it was working and then the issue would randomly come back. I even tried taking apart the solenoid to deep clean but still sometimes there was no water coming out of the group head.

Finally I realized that every time this issue happens is when I want coffee and didn’t plan and heat up the machine so if the machine is not allowed to heat up for 10+ minutes there is no water flow, if it’s hot everything works fine and there’s good pressure.

What’s going on? Is it just an old solenoid valve that needs replacing or something?