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Dosing and Tamping issue
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Discussions > Espresso > Q and A > Dosing and...  
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Italo2275
Senior Member


Joined: 9 Jan 2013
Posts: 96
Location: Toronto
Expertise: Just starting

Posted Mon Feb 4, 2013, 7:15pm
Subject: Dosing and Tamping issue
 

Hi
Guys
I bought a ROcket R58 with a Compak K3 Touch Grinder. So now comes the fun with trying to dial in my grinder and pulling a good shot. I have wasted so much coffee and  am getting nowhere. Maybe someone can give me some hints.
Here is what I have done.

- I think the issue I have is getting the right dose. At first I was using the filling up the portafilter to the top, leveling the top and tamping it. I then played aroud with the gring  till  I could get  a double shot 2oz coming out in  about 25 sec. Well I tried but moving the gring in small incriments up and down did not work. So I decided to weigh my grind, and found out that filling the portafilter gave me 23 grams of coffee, way to much.
So I weighed 16 gm and got a decent shot, I then tried 17 and 18 grams and still decent shots but still not great.

1)I am confused to why the filling up  and leveling the portafilter technique does not work?
2) When do I adjust the gring? and when do I increase the dose up and Down?

Thanks
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NobbyR
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NobbyR
Joined: 10 Jul 2011
Posts: 2,040
Location: Germany
Expertise: I love coffee

Espresso: Poccino Opus One, Ariete
Grinder: Eureka Mignon Istantaneo
Vac Pot: N/A
Drip: Melitta Linea Unica de Luxe
Roaster: N/A
Posted Tue Feb 5, 2013, 1:52am
Subject: Re: Dosing and Tamping issue
 

Italo2275 Said:

1) I am confused to why the filling up  and leveling the portafilter technique does not work?

Posted February 4, 2013 link

Keep in mind that this is only a rule-of-thumb method. You need to have a lot of experience in order to get the dose fairly accurate by visual judgement alone. Most professional baristas can do it quite well, but they have tons of practice. Using a sclale is much more practicable.

Italo2275 Said:

2) When do I adjust the grind? and when do I increase the dose up and down?

Posted February 4, 2013 link

When you dial in your grinder, you have to keep your dose and tamping pressure constant. Dose and coarseness setting are the two most important factors influencing extraction time, while tamping is only tertiary. However, changing the dose by 0.2 g can already alter taste. Since your grinder is stepless, you don't have to adjust the dose to compensate for wider steps in the grinding gear.

Find the espresso dose that tastes best to you and adjust the grinder when necessary.

 
***
"This drink of the Satan is so delicious that it would be a shame to leave it to the infidels." (Pope Clement VIII on coffee, when he was urged to ban the beverage)
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calblacksmith
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calblacksmith
Joined: 25 Nov 2007
Posts: 7,726
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Tue Feb 5, 2013, 7:37am
Subject: Re: Dosing and Tamping issue
 

YEP, what he said.

Once you are in the "ball park" you then need to "play" with things to decide what tastes best TO YOU! I tend to prefer a 18g double shot, it fits comfortably in my basket and I like the flavor profile, you may not be able to get 18 g or you may be able to get 25 g, baskets are different sizes even if it is a "double" basket. then you have the tripple baskets. I have one but do not use it.

You adjust the grinder to get the taste you want once you have hit the zone for the flavor profile you want.

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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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 Tue Feb 5, 2013, 7:38am
Subject: Re: Dosing and Tamping issue
 

read article 12 on www.espressomyespresso.com "easy guide to better espresso at home"  It'll help you a lot in getting your gear dialed in.  The article is about half way down the right column, under "HowTo"

 
.
Always remember the most important thing is what ends up in your cup!
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Italo2275
Senior Member


Joined: 9 Jan 2013
Posts: 96
Location: Toronto
Expertise: Just starting

Posted Tue Feb 5, 2013, 9:57am
Subject: Re: Dosing and Tamping issue
 

Thanks for the info, so here is another dumb question, when you put in your Portafilter how tight do you Tighten it? Sometimes I think it is too loose.
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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 Tue Feb 5, 2013, 12:42pm
Subject: Re: Dosing and Tamping issue
 

I just crank mine over until it feel secure.  It doesn't technically "lock" in place, but we typically think of it like that because of the way it feels.

 
.
Always remember the most important thing is what ends up in your cup!
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calblacksmith
Moderator
calblacksmith
Joined: 25 Nov 2007
Posts: 7,726
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Tue Feb 5, 2013, 2:52pm
Subject: Re: Dosing and Tamping issue
 

If it is tight enough to not leak when brewing, it is tight enough, you will quickly learn just how tight is tight enough with your machine. If you go too tight all the time, you will wear out the gasket sooner than it otherwise would be but other than that, it won't hurt anything. BTW, that gasket should be replaced about every 6 months or so anyway as it does wear every time you lock int the PF. This is normal wear and tear and you should buy several gaskets at a time so they are on hand and you save shipping on them this way.

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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