Believe it or not there is a Vostok 4 group selling in Brisbane for…..$6000aud negotiable!
I wonder if I could cut it in half and share it with TomP.
ACS Vostok
Amberale Really, I didn’t think they ever made a 4 group, even as a special? 3 group is the most?
Dunno mate,it’s a FB marketplace thing, sounds like a cafe closing.
I figure just the groups would be worth $6k.
The ad claims only one of its kind ever shipped out of Italy.
Amberale I can believe it’s one of a kind. Paolo confirmed they made a few in the beginning, but they make no 4 groups now.
Sturdy worktop that is 😆
The thing is spotless and I notice in the first picture it’s a mirror panel at the bottom showing the group, that’s a nice machine alright
Amberale Strange how these things work out, isn’t it? Is the price on the bull negotiable too? 😁
(The good thing is you can switch groups off if not needed - the not-so-good thing is that I think it still uses only two boilers, so you will need a 30A spur into the pool room just for that, if not a 3-phase connection)
2 months later
- Edited
In the other thread, @DenisS detailed out why a pre-loaded pressures profile might not work for a given puck and the closest thing to the reality is a spring lever..
https://coffeetime.freeflarum.com/d/1445-meticulous/15
A related question to Denis’s detailed explanation would be in the case of Vostok’s automatic shots.
How does the pressure profile work in the automatic mode?
Is it pre-loaded or the software intelligently mimics to calculate the pressure profile per puck? I have been wondering how would it possible in the auto mode as the lever is never used.
What bar pressure does the auto mode achieve vs the manual spring lever ?
You guys would have pulled loads of shots in either mode. How did the cup compare? Thx
I don’t believe that the Vostok has “Pressure Profiles” or “automatic shots”.
My understanding is that the shot is run as normal using the spring but is ended by a solenoid opening a valve to release the pressure totally when either a time or a pressure is reached depending on whether either choice is selected.
It does this in a controlled manner so it does not break jaws. ;)
I think it has come from the experience with the EVO (and possibly commercial Vostoks) that stopping a shot a a certain pressure will give a consistent output ratio.
It’s just an automated end feature. Like old school volumetric.
So if you’re doing everything the same day in a cafe you can set it to kill a shot at 7bar and not worry about over running.
I’ve found that once you get past 7bar on the Evo the flow quickens and you don’t want to drink that stuff.
The machine for me is 10-8 or 10-7 bar roast/bean dependant
Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -
I was wondering if ACS has implemented something different with the auto feature.
Agree re-7 bars. It is very rare I go until 6. I was tasting the Kenyan with 6 vs 7 bars. I prefer the 7 than 6 as the former is a lot smoother.
- Edited
Amberale I don’t believe that the Vostok has “Pressure Profiles” or “automatic shots”.
My understanding is that the shot is run as normal using the spring but is ended by a solenoid opening a valve to release the pressure totally when either a time or a pressure is reached depending on whether either choice is selected.
Exactly right.
Amberale I think it has come from the experience with the EVO (and possibly commercial Vostoks) that stopping a shot a a certain pressure will give a consistent output ratio.
It came about from my direct experience with the Alpha Evo (now deceased). Pressure is a very accurate indicater of weight of espresso extracted and works for slightly varying grind levels (diff coffees), tamping pressures and puck prep.