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Discussions > Espresso > Machines > Another DB...  
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DeanOK
Senior Member
DeanOK
Joined: 24 Sep 2012
Posts: 720
Location: OK
Expertise: I like coffee

Espresso: QM Vetrano 2B
Grinder: Vario W
Posted Sat Sep 14, 2013, 12:30pm
Subject: Re: Another DB Quickmill - Monster Thread
 

CarloM Said:

Well that went about as expected. Tip arrived yesterday, attached it last night, had difficulty getting the swirl this morning. Lesson learned for next time. The smaller overall tip size kind of threw me off. I think I wasn't getting the right amount of the tip under the milk for stretching, and by the time I (over)corrected I brought in too much air which I couldn't fully incorporate because I couldn't figure out how to get the swirl. I think I'll practice with water and soap later today.

Posted September 14, 2013 link

Well, I am not sure I have good advice, but I will tell you about my experience. I put the tip almost straight down in the center of the pitcher. Since you have 4 holes shooting 90 degrees apart, seems to me angling the tip is not going to be productive with 4 holes. I put the tip just below the surface almost straight  up and down and leave it there until I get to about 100F on milk temperature and then I move the wand father into the milk. I get foam this way, but it is not a fine as the foam I got with the CC1. I am still figuring it out too.
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Avalon
Senior Member


Joined: 8 Aug 2013
Posts: 7
Location: FL
Expertise: Just starting

Posted Sun Sep 15, 2013, 11:04pm
Subject: Re: Another DB Quickmill
 

Just received my Vetrano and I seem to have some issues with it....
  1.  Any of you guys having trouble unscrewing the 2 hole tip?   Mine wont budge and I've tried everything.   Any ideas on how to get this thing off?  Didnt want to use pliers as I dont want to scratch the finish.
  2.  I also noticed that my group gasket was also the hard gasket.   Wasn't this supposed to come with the soft ones?
  3.  How are the feet of your vetrano?  2 of mine came  a  bit dull and oxidized  and I tried to polish it off with a rag but no success.  Any of yours arrived in this condition.  I might be nitpicking but if Im putting down this kind of money, I expect everything to be brand new and functioning as it should be.

Any similar experiences? any input would be much appreciated!
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CarloM
Senior Member


Joined: 1 Apr 2013
Posts: 332
Location: Los Angeles
Expertise: I live coffee

Espresso: Vetrano V2B
Grinder: Mazzer Mini-E Type A, SJ...
Drip: Toddy
Posted Mon Sep 16, 2013, 6:48am
Subject: Re: Another DB Quickmill
 

  1. Removing of the two hole tip. I used a pair of pliers, with a small wad of paper towel folded up to protect the metal from the teeth, and unscrewed. It came out fairly easily (a little bit of tightness as you'd expect in the beginning but once it started I could unscrew it with my hand).

  2. I've taken the gasket off and there is some give to it, but I don't know if it's classified as soft or hard, not knowing how to tell. I'm pretty happy with the performance, there's no leaking and no issue with the installation of the portafilter (using a light amount of pressure it stops right around 90 degrees with a tight seal without torquing the front panel much). Pardon my ignorance but what would be the benefit of the softer gasket? Per Dave's recommendation I'll probably be changing mine every six months so if there's a benefit to the soft gasket I'll be ordering that in February 2014.

  3. My feet aren't shiny like the rest of the machine. There is a bit of a dull look to them. Not sure about oxidized. Definitely no rust though. Not a deal breaker for me but I can understand if others are upset.

I'd just be happy to get a handle on steaming with the 4-hole tip. Here goes nothing! :)
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CarloM
Senior Member


Joined: 1 Apr 2013
Posts: 332
Location: Los Angeles
Expertise: I live coffee

Espresso: Vetrano V2B
Grinder: Mazzer Mini-E Type A, SJ...
Drip: Toddy
Posted Tue Sep 17, 2013, 7:58am
Subject: Re: Another DB Quickmill
 

This is mostly for Dean - I couldn't find your other thread about using the precision screen vs. the default screen.

I am one of those who bought the precision screen and installed it right away. Been using for a few weeks now and decided, since today was my weekly "clean the screen and gasket" day, I'd put the original screen on. The differences are noticeable visibly: the original screen has a more bulbous screen shape (convex towards the puck) than the precision screen. But also, the way the precision screen is made, there's like a layer of stainless steel which contacts the puck, and the only "screen" portion is the screen over the holes where the water comes out. Looking at it from the back (inside) of the screen there's also mostly metal visible, so it's like the screen is sandwiched between two metal plates with holes in the right places for water to come out, as opposed to the original screen which has a back plate of metal and the front is all screen.

Does that make sense?

The Result: Quality-wise I can tell you it's about a wash. I couldn't discern a difference between my cup today and my cup yesterday.

And yet, I'm going to put the precision screen back on right away when it cools.

Why? Because of cleanliness. I thought this might happen when looking at the two screens and one use has confirmed it. Fine particles of coffee are more likely to get into the original screen than they are in the precision screen. Usually when I do a 2 second cleaning flush and wipe with the towel, the precision screen almost has no fine grind on the towel. With the same cleaning flush and wipe, there's a ton of grind today. Plus looking up into the original screen I could still see little bits of grind. So I flushed and wiped again, still more grind. Then I backflushed with clean water and the water that came out was noticeable colored with a little coffee. When I had my precision screen, a water backflush yielded an almost colorless water.

So to summarize:
  • With the precision screen, one 2-second flush and quick towel wipe yielded barely any grind on the towel. Screen looked clean to naked eye. Then one water backflush yielded almost colorless water going into the drip pan. I am confident very little coffee/oils got into the brewgroup.
  • With the original screen, one 2-second flush and quick towel wipe yielded quite a bit of grind on the towel. A second 2-second flush and towel wipe yielded less grind, but still more than what I was used to seeing with the precision screen. A first backflush yielded slightly brown water. A second backflush yielded much clearer water. Clearly much more coffee grind/oils were introduced into the grouphead than with the precision screen.

It's ironic, the precision screen is marketed towards getting a better dispersion and even pressure of water into the puck. I cannot say for sure if either happened. My coffee tastes the same. But what they should market it as, is a protective barrier keeping much more of the grind and oil from going up into the group head. I remember reading Dean say he cleaned the grouphead when he had his screen off, and when I looked at mine (having only used the precision screen for weeks) I thought "why did he bother, mine looks like new"? Now I know why.
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sharky
Senior Member
sharky
Joined: 9 Jan 2013
Posts: 190
Location: Calgary, AB
Expertise: I love coffee

Espresso: QM Vetrano 2B
Grinder: Compak K3 Touch
Posted Tue Sep 17, 2013, 10:48am
Subject: Re: Another DB Quickmill
 

CarloM, what is this precision screen you are mentioning?  How much is it to buy, and where did you get it from?  Thx.
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DeanOK
Senior Member
DeanOK
Joined: 24 Sep 2012
Posts: 720
Location: OK
Expertise: I like coffee

Espresso: QM Vetrano 2B
Grinder: Vario W
Posted Tue Sep 17, 2013, 2:49pm
Subject: Re: Another DB Quickmill
 

CarloM Said:

This is mostly for Dean - I couldn't find your other thread about using the precision screen vs. the default screen.

I am one of those who bought the precision screen and installed it right away. Been using for a few weeks now and decided, since today was my weekly "clean the screen and gasket" day, I'd put the original screen on. The differences are noticeable visibly: the original screen has a more bulbous screen shape (convex towards the puck) than the precision screen. But also, the way the precision screen is made, there's like a layer of stainless steel which contacts the puck, and the only "screen" portion is the screen over the holes where the water comes out. Looking at it from the back (inside) of the screen there's also mostly metal visible, so it's like the screen is sandwiched between two metal plates with holes in the right places for water to come out, as opposed to the original screen which has a back plate of metal and the front is all screen.

Does that make sense?

The Result: Quality-wise I can tell you it's about a wash. I couldn't discern a difference between my cup today and my cup yesterday.

And yet, I'm going to put the precision screen back on right away when it cools.

Why? Because of cleanliness. I thought this might happen when looking at the two screens and one use has confirmed it. Fine particles of coffee are more likely to get into the original screen than they are in the precision screen. Usually when I do a 2 second cleaning flush and wipe with the towel, the precision screen almost has no fine grind on the towel. With the same cleaning flush and wipe, there's a ton of grind today. Plus looking up into the original screen I could still see little bits of grind. So I flushed and wiped again, still more grind. Then I backflushed with clean water and the water that came out was noticeable colored with a little coffee. When I had my precision screen, a water backflush yielded an almost colorless water.

So to summarize:
With the precision screen, one 2-second flush and quick towel wipe yielded barely any grind on the towel. Screen looked clean to naked eye. Then one water backflush yielded almost colorless water going into the drip pan. I am confident very little coffee/oils got into the brewgroup.
With the original screen, one 2-second flush and quick towel wipe yielded quite a bit of grind on the towel. A second 2-second flush and towel wipe yielded less grind, but still more than what I was used to seeing with the precision screen. A first backflush yielded slightly brown water. A second backflush yielded much clearer water. Clearly much more coffee grind/oils were introduced into the grouphead than with the precision screen.

It's ironic, the precision screen is marketed towards getting a better dispersion and even pressure of water into the puck. I cannot say for sure if either happened. My coffee tastes the same. But what they should market it as, is a protective barrier keeping much more of the grind and oil from going up into the group head. I remember reading Dean say he cleaned the grouphead when he had his screen off, and when I looked at mine (having only used the precision screen for weeks) I thought "why did he bother, mine looks like new"? Now I know why.

Posted September 17, 2013 link

Thanks for taking the time to organize your thoughts... I agree that cleanliness is a valid enough reason.
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CarloM
Senior Member


Joined: 1 Apr 2013
Posts: 332
Location: Los Angeles
Expertise: I live coffee

Espresso: Vetrano V2B
Grinder: Mazzer Mini-E Type A, SJ...
Drip: Toddy
Posted Tue Sep 17, 2013, 4:30pm
Subject: Re: Another DB Quickmill
 

Sharky: Here is the precision shower screen from CCS

DeanOK, and others: 4-hole tip question/observation.

I was just about to give up on the 4-hole tip and getting good microfoam. I've been having a devil of a time getting the "swirl" that is essential. I've noticed that historically when I bleed the steam wand before steaming, not all four holes spray steam equally in all directions. Initially I thought nothing of it. But this got me thinking, maybe this is a problem?

So today I was in the process of removing the 4-hole tip and going back to the 2-hole tip. I noticed something: the teflon tube extended way out from the end of the wand with the tip removed. I held up the 4 hole tip right beside it and noted that the teflon tube was likely extending far enough to partially block one or more holes. So I took some wire cutters and cut about 1/4" to 1/8" off of the tube, reducing it to a level where it appears to no longer block one of the holes. I reattached the tip and am warming up the machine to use in about 20 minutes. But just now the steam boiler got to 256F so I just turned on the steam and sure enough, all four holes now spray equally in all directions. Now this doesn't mean I'll be any better at steaming, but it gives me some hope. I'll post later if I have better luck...
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CarloM
Senior Member


Joined: 1 Apr 2013
Posts: 332
Location: Los Angeles
Expertise: I live coffee

Espresso: Vetrano V2B
Grinder: Mazzer Mini-E Type A, SJ...
Drip: Toddy
Posted Tue Sep 17, 2013, 5:05pm
Subject: Re: Another DB Quickmill
 

Quick update: near perfect microfoam after I cut the piece of teflon tubing shorter to allow for four symmetrical streams of steam to come out of the 4-hole tip. Messed up the pour so my art sucks, but now I'm getting very close to the type of microfoam that I get from Intelligentsia. I'm definitely leaving the 4-hole tip on now, and would recommend that anyone having trouble with the 4-hole tip to test and see if you're getting 4 equally powerful streams of steam. If not, check if your teflon tubing is extending too far into the tip and blocking (even partially) a hole or two. Mine was cut at an angle so it might have been partially blocking as many as two of the .9mm holes. It was way easier to get the swirl/roll going post-cutting of the teflon.
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DeanOK
Senior Member
DeanOK
Joined: 24 Sep 2012
Posts: 720
Location: OK
Expertise: I like coffee

Espresso: QM Vetrano 2B
Grinder: Vario W
Posted Tue Sep 17, 2013, 6:24pm
Subject: Re: Another DB Quickmill
 

This is mostly for ECM:

Ok, I went to the hardware store the other day and bought the missing stainless steel screws that were supposed to be in the middle of the side panels on the bottom. I guess the guy that assembled mine at the factory was thinking about his upcoming vacation in Aug instead of my machine...at any rate.... I got everything tight and took a new sound measurement using the same  sound level software. I cant remember what I measured before, but I think it was around 68 or 69 db 12 inches in front of the machine. This time it was 67db. No big change.
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Tonyv138
Senior Member


Joined: 16 Jun 2013
Posts: 74
Location: tx
Expertise: I love coffee

Espresso: V2B
Grinder: Mazzer SJ
Posted Sat Sep 21, 2013, 12:27am
Subject: Re: Another DB Quickmill
 

Has anyone tried to drain boilers on V2B. Curious how hard those drain valves to open to drain and close so they do not leak under pressure?

thanks
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