Aquanin Senior Member Joined: 22 Feb 2014 Posts: 24 Location: Austin, TX Expertise: I love coffee
Posted Sat Feb 22, 2014, 7:43am Subject: New CC1 all crema
Hi everyone! So I just upgraded my Gaggia Evolution to a CC1. I already had a Vario, so I am good there. I can't for the life of my get anything other than a sour under extracted shot with Redbird beans (1 week old) I am keeping the dose constant at 18g and the shot time constant at 28 second. So when I pull, regardless of grind, it seems the first thing that comes out is crema. So I end up with almost all light colored crema and the shots are sour. I even got it to pull a slow 1 oz in 28 seconds and it was still nasty. Could something be wrong with my machine?
Posted Sat Feb 22, 2014, 9:39am Subject: Re: New CC1 all crema
If it is a new machine, flush several tanks of water thru the machine/group to clear out any residue from the manufacturing process. Make sure you pull shots that are way too hot and pull shots that are way too cool on purpose and knowingly. The hot shots should be bitter while the cool ones should be notably sour.
bossman Senior Member Joined: 10 Dec 2013 Posts: 100 Location: Iowa Expertise: I love coffee
Espresso: Mini Vivladi II Grinder: Baratza Vario-W Drip: Cuisinart Roaster: Soon I hope
Posted Sat Feb 22, 2014, 9:54am Subject: Re: New CC1 all crema
I will be following this thread with great interest, if UPS ever finds my CC1 I will be starting fresh as well. I have a couple pounds of Fair Mountain and 5 pounds of Redline that will be here Monday. Just curious what setting are you using on your Vario for the grind?
Coffeenoobie Senior Member Joined: 11 Dec 2011 Posts: 3,021 Location: PNW Expertise: I like coffee
Espresso: N S Oscar Grinder: K30 & Vario W
Posted Sat Feb 22, 2014, 11:02am Subject: Re: New CC1 all crema
When it is all new you have to keep trying to get the hang of it. I weighed things and slowly changed one thing at a time to learn what it did. Take your time, you will get it. Read espresso my espresso. All the articles are great.
Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.
DeanOK Senior Member Joined: 24 Sep 2012 Posts: 661 Location: OK Expertise: I like coffee
Espresso: QM Vetrano 2B Grinder: Vario W
Posted Sat Feb 22, 2014, 11:36am Subject: Re: New CC1 all crema
I used to have a CC1. I think I dosed 18 grams when I had it. Fresh coffee will look like solid crema in a clear shot glass until it rests a half minute or so. Fresh coffee can make volumes of crema and throw you off on yield consistency just by looking at the liquid volumetric quantity. I suggest you use your gram scale to measure the yield. Try to get 36 grams in 25-28 seconds from a 18 gram puck. if the shot is still sour, try changing the offset temperature. My CC1 was off significantly on temperature delivered to the puck even when I did a warming shot. I improved the shot greatly by decreasing the offset to make the boiler temp warmer
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