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Bottomless PF fine jets problem
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Discussions > Espresso > Q and A > Bottomless PF...  
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emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 3,047
Location: Houston
Expertise: I live coffee

Espresso: Duetto II; Twist v2
Grinder: M Major, Macap M4 x2, VDD...
Drip: Espro presses; Aeropress
Roaster: H-B "List of Favorites"
Posted Thu Mar 22, 2012, 3:25pm
Subject: Re: Bottomless PF fine jets problem
 

Hey Birket,

If you haven't by now, you really should visit Randy's (he's frcn) site (espressomyespresso) and read through it thoroughly.  There is an extensive amount of information there and not only will you understand the entire process better than you do now, but you will be able to make improvements in your technique right away.   There are a lot of good posts in this thread, but I think that one where he gave you his website is the most helpful. (of course, that's just my $0.02)

The only thing he discusses that I find questionable is the WDT.  Sorry to everyone who uses it, but I just think it's lunacy...and ya know, they make good drugs for managing OCD these days.

Just don't get discouraged and keep trying, you will get it.

 
.
Always remember the most important thing is what ends up in your cup!
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Birket
Senior Member


Joined: 11 Oct 2011
Posts: 4
Location: Oxford
Expertise: Just starting

Espresso: Gaggia Classic
Grinder: Gaggia RI8121/60
Posted Fri Apr 20, 2012, 4:28am
Subject: Re: Bottomless PF fine jets problem
 

Continuing my quest to improve my espresso, I decided to buy a new grinder. I didn't want to spend loads, so I decided to get the Iberital MC2 Auto from Happy Donkey.

What a difference to the grind! As I think I stated earlier in this thread, I had an old Gaggia grinder which, to be honest, was a bit crap and starting to become unreliable. For simplicities sake, I decided to buy off-the-shelf Lavazzo espresso ground coffee. To my untrained eyes, the grind seemed too course for an espresso, but I persevered for a while with a few bags.

I received the Iberital MC2 Auto just the other day, so I am still fine tuning, but what I have found so far is that the grinds are much finer and much much more fluffy than off-the-shelf stuff. Am I correct in thinking that around 14g of coffee should be used in a double basket to create a double shot? That is what I am doing at the moment. When I tamp the coffee, the puck is a hell-of-a-lot thinner than when I was using off-the-shelf grinds. To be honest though, with the off-the-shelf grinds I wasn't weighing the coffee - I was just filling the basket to the brim with a knife to level it off, and then compressing.

When I pull my double-shot, I am timing 26 seconds on a timer and adjusting the grind until the coffee fills my 2 shot glasses to the line. At the moment, the level of coffee after 26 seconds is just short of the line, so I guess I need to go a little courser with the grind.

I haven't tried my bottomless PF yet as I want to concentrate on getting the grind right first.
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emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 3,047
Location: Houston
Expertise: I live coffee

Espresso: Duetto II; Twist v2
Grinder: M Major, Macap M4 x2, VDD...
Drip: Espro presses; Aeropress
Roaster: H-B "List of Favorites"
Posted Fri Apr 20, 2012, 11:34am
Subject: Re: Bottomless PF fine jets problem
 

the bottomless PF will help you fine tune your grind.  That's only one of the benefits, but it will help you.  You also have to adjust dose - depending on your taste, basket size, etc.  Bean freshness will also be a huge factor, as you've already noticed.  You simply cannot make drinkable espresso with stale coffee.  Grond coffee should be used for extraction within 15 minutes, so...though your Lavazza seems fresh when you first open the bag...it is too stale to use for espresso shortly thereafter.

14g is a starting point.  It's the Italian National Standard, but that doesn't mean it's right for everyone or used by everyone.  In fact, in the US there's a tendency to "overdose", so you'll find people recommending 16 - 18 g for a double.  You can apply a nickel test to check your dose too.  Once tamped in, drop a nickel in the center of the basket, then load the pf onto the group head, and then unlad it and carefully take out the nickel without otherwise disturbing the puck.  There should be minimal indentation in the puck from the nickel compressed into it.  Of course, your fineness and dose will affect this, so they both need to be fine tuned.

EDIT: OK, so you're in the UK...if you can't get hold of a nickel, you can look up it's thickness on the internet and then find a suitable substitute in the Queen's purse.  :)

Again, if you haven't gone to Randy's site (frcn: www.espressomyespresso.com) you should.  There's a great article on troubleshooting...EASY GUIDE TO BETTER ESPRESSO AT HOME...it's off to the right a little more than mid-way down...#12 on the how-to articles.

 
.
Always remember the most important thing is what ends up in your cup!
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