r/gaggiaclassic

Hi everyone!

I've had my Gaggia Classic E24 for about two months now and I've been really enjoying it. I'm thinking about doing my first two mods together: a 9 bar OPV spring and a single-hole steam tip.

I was originally planning to get both from Shades of Coffee, since they seem to be very well known for Gaggia mods. Unfortunately, the shipping cost to my country is ridiculously expensive, so I started looking for alternatives.

I ended up finding both the DistroLabs 9 bar OPV spring and the single-hole steam tip on Amazon, which would be much easier for me to get.

I've seen some positive feedback about the OPV in this video.

https://www.youtube.com/watch?v=txWyLHnuuz0

I'm especially curious about the single-hole steam tip. I'm still learning how to texture milk, so I'm wondering if it actually makes a noticeable difference and helps with learning, or if I should just stick with the stock E24 tip and focus on technique.

Does anyone have these mods? Are they worth it?

Thanks!

Manual flow control yields a smooth, balanced espresso with distinct chocolate notes. Surprisingly, the decaf version tasted exactly like standard coffee beans

Hi Can anyone recommend an 18gm basket?

I have this bottomless portafilter https://www.aliexpress.com/item/1005006119311249.html and noticed the coffee sprays everywhere despite beans dialled in, WDT and correct tamp.

I assume the 16gm dose in the standard basket is too much for the darker roast beans I am using https://www.woolworths.com.au/shop/productdetails/785433 as I see an imprint of the screw and showerscreen on the pucks.

Im thinking I need a 18gm basket hence the request. (also will mod the spring to 9 bar)

My Gaggia Classic Pro is spraying water in thin, pressurized streams instead of flowing evenly.

I've descaled the machine and removed the shower screen and cleaned it with cafiza, I tried making the shower screen screw less tight, it didn't help.

The coffee comes out normally and I don't feel anything weird in my cup, but it just doesn't look right.

Second shot with the Baristanauat from Barista Gadgets.

I followed the method outlined on A Whole Latte Love for this process (have done it quarterly for about a year). After this time, during backflow cleaning, I noted the pump sounds different when there is pressure. I took it apart and checked the o ring and all the screws etc, but not sure what to do for this. Any advice?

I'm set on a green Gaggia E24 as my impression from the website I was going to order from it is an almost racing green / forest green colour rather than a bright green. But having seen some other images after a search I'm worried that it'll be a bright metallic green? This would definitely not be the vibe for me. How close would owners of one say it matches this image?

Hello!

I've just done a tear down of my Gaggia Classic 2012 machine, intending to give the solenoid a once over. But I am shocked at the amount of black and beige flakes and dark patch inside the boiler. Is this just normal aluminium boiler corrosion and just needs a good clean or is something else going on here?

I live in a soft water area (Scotland) but I got the machine from family who may have been using it in an area of harder water.

Thank you!

TLDR: 240V to 120V is relatively simple, but does need a new pump and solenoid which aren't cheap. Also you need butt connectors, crimping rachet tool, wire stripper, silicone tape and a multimeter for the series to parralel rewiring. Attempt at your own risk. I am a hobbyist who studied physics at school, not an electrician.

Has been a rollercoaster 10 day staycation.

Background: 3 years ago, I moved from the UK to Canada and refused to part ways with my beloved 2004 Gaggia.

The coffee was so good and it was such a fun hobby that I had invested a lot of time into (started with boiler descaling, low profile drip tray, and then the black vinyl wrap) that I couldn't bear to sell my machine. I had also bought the full shades of coffee kit before I relocated, so top box, PID, pressure gauge and flow control dimmer set - that I hadn't had time yet to install while my kids were little.

But having espresso every morning with a giant voltage converter on my kitchen countertop has been a real drag, and my ultimate project was to finally convert the machine to run on 120V -- a task where there has actually been very little how-to guides online. Most people say that it's possible but ill-advised and easier just to replace the machine. No instructions apart from the vague: "it's as simple as converting the machine from series to parralel".

So, what did I do / want to share:

- first and foremost, please be careful using AI guidance for electrical projects. It was really wrong frequently, and I did get a mild electrical shock using its advice as an aid, so hopefully my notes here on a real, successful conversion (rather than theoretical) help if you are set on doing this.

- the boiler can stay. It can run dual voltage.

- the ulka pump and solenoid valve need to be replaced for 120v versions (widely available, but kind of pricey)

- you don't need to buy additional wiring

- you do need 1) butt connector x 2, 2) crimping rachet tool, 3) wire stripper, 4) self-bonding silicone tape & 5) a multimeter, ideally auto/continuity enabled.

Replacing the pump and solenoid is straightforward. I was also installing the PID, brew pressure gauge and flow control dimmer at the same time so this can all be completed as you wish as well (no voltage issues). I can't speak for gaggimate or other advanced mods.

The rewiring for the boiler was where I started to break a sweat. At many times this past week, I was very concerned I may have bitten off more than I could chew, and it goes without saying that mains voltage electrics are dangerous - attempt at your own risk.

The trick I discovered late on is that you can just simply use the existing wires connecting to the 4x boiler pins to rewire from series to parralel. AI first had me buying new female/male spade connectors, and extra wiring, which was a complete waste of time. It's by far best just to reuse the boiler pin connectors that came factory installed.

However using the existing wiring is nerve racking because you only have what is in the machine. You screw up too much, cut too much, and it's gone for good.

So how to do the rewire:

0. obviously disconnect your machine completely from the mains electric.

1. In parralel 240V machines, there is a wire that simply connects 1 boiler pin to another boiler pin. This need to be removed and cut down the middle. That's a scary feeling, but have faith. Go ahead and strip a centimeter off the ends to expose the copper ready to reconnect.

2. disconnect the other 2 boiler connectors and similarly make a cut about 3 inches back along each wire. Like before, also strip those about a centimeter back (so now you have 4 boiler connectors with exposed wires).

3. Now strip back the 2 loose wires that were going along to those boiler connectors before.

4. Now we want each of those loose wires to split into 2 of the boiler pin wires, and you can use 2 butt connectors and the crimping rachet tool for that. Simple online tutorials are available on how to do that.

5. the plastic insulation on your 2 butt connectors may melt with the temperature inside the machine, so I used self-bonding silicone tape and wrapped it all around the butt connector to try and protect it from the heat.

6. the bit where I lost some hair was the final step, reattaching the 4 boiler pin connectors on the right way. See image for how it finally worked. For this, I used a multimeter to double check that there was a working resistance between the pins (not 0.00, or open loop/broken circuit).

And voila! The rewiring finally was complete and I am now pulling incredible espresso... now with all my mods fitted... and at last without the giant voltage converter. No problems yet! Good luck if you similarly want to relocate your classic across the pond

Before and after wiring pics included, ignore the fingerprints on my machine 😂😂

Tried a light roast and the shot was flying through in like 15 sec. Then tried a French roast — crema was much better, but somehow I lost that nice cocoa / bittersweet flavour.
For the guys using a Gaggia + DF54:
Which beans are you guys using and liking?
What DF54 settings do you use for light / medium / dark roasts?
What’s your usual dose → yield → timing?
Any good temperature-surfing game for the stock Gaggia?

What's up everyone,

I've been really enjoying pouring cortados lately. The milk makes for a bigger drink and still allows the details of the beans to pop a little bit.

Have a great sunday!