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Educated opinions on my roast levels.
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hacksaw35
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Joined: 10 Mar 2013
Posts: 2
Location: Portland, OR
Expertise: I love coffee

Posted Sun Mar 10, 2013, 9:58pm
Subject: Educated opinions on my roast levels.
 

]Hello all,
I am new to the forum and I'm also new to home roasting! Over the last week or so I've been testing out some different batches. Below are my first five roasts. I only started to notice first crack on the last batch (finally!)
If I had to guess I think most of them were about 90 seconds into first crack. So, I'm thinking that these are City+/Full City...but honestly this is my first go and wanted another opinion as to where I ended up on roast level. Any help would be appreciated. Thanks!

Also, here is the % water loss info. (1) 12.4%, (2) 12.6%, (3) 14.49, (4) 14.36%, (5) 12.6%

Click Here (i130.photobucket.com)
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MatP
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Joined: 1 Mar 2013
Posts: 42
Location: Southern California
Expertise: I like coffee

Espresso: Gaggia Classic
Grinder: Macap MXP
Roaster: Behmor 1600
Posted Mon Mar 11, 2013, 9:14am
Subject: Re: Educated opinions on my roast levels.
 

The wikipedia article on coffee roasting can probably help you answer the questions you have:

http://en.wikipedia.org/wiki/Coffee_roasting

Congrats on your first roast! how was the coffee? How did you roast it?

Cheers

MatP
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Burner0000
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Joined: 28 Jul 2011
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Location: Cambridge, Ontario Canada
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Espresso: Rancilio Silvia, VFA Expres...
Grinder: Macap MX/VFA N1464/Kyocera...
Drip: Manual Drip, French Press
Roaster: Behmor 1600 / Sonofresco
Posted Mon Mar 11, 2013, 11:13am
Subject: Re: Educated opinions on my roast levels.
 

#1, #2 & #4 look like City + roasts.  They all don't look too bad.  End of second crack is considered City roast.  The Wiki article MatP provided is great!  I have been using it with every roast for almost 8 months now.  I can roast by sight and sound no problem.  What roaster are you using?  Can you also give us roast times?
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kboom1
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kboom1
Joined: 31 Aug 2009
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Posted Mon Mar 11, 2013, 12:38pm
Subject: Re: Educated opinions on my roast levels.
 

Burner0000 Said:

#1, #2 & #4 look like City + roasts.  They all don't look too bad.  End of second crack is considered City roast.  The Wiki article MatP provided is great!  I have been using it with every roast for almost 8 months now.  I can roast by sight and sound no problem.  What roaster are you using?  Can you also give us roast times?

Posted March 11, 2013 link

end of 1st is city. sorry just thought I'd correct it for you incase you didnt see it
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CoffeeRoastersClub
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CoffeeRoastersClub
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Posted Mon Mar 11, 2013, 3:12pm
Subject: Re: Educated opinions on my roast levels.
 

1 and 2 look like Full City, 3 looks like City, 4 & 5 City+ .  Your 90 seconds into 1st crack remark needs a bit more info as in what was your method of roasting?  (Popper, BBQ grill, etc.).  I say this because 90 seconds into 1st crack with a conventional popper will yield a darker roast than say 90 seconds into 1st crack with a typical BBQ grill drum.

Len

 
"Coffee leads men to trifle away their time, scald their chops, and spend their money, all for a little base, black, thick, nasty, bitter, stinking nauseous puddle water." ~The Women's Petition Against Coffee, 1674

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hacksaw35
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Joined: 10 Mar 2013
Posts: 2
Location: Portland, OR
Expertise: I love coffee

Posted Mon Mar 11, 2013, 7:11pm
Subject: Re: Educated opinions on my roast levels.
 

Thanks for all the replies. That wiki article looks like a good resource.

I am using a Gene Cafe. These were the roast times and temps. All batches were pulled out and cooled in my diy cooling bin (box, screen, shop vac)...cools them in about 1-2 minutes.

Yirg.(250g)   Preheat- 350    Actual Start Temp- 255   Warming Temp- 320 for 5:30    Roast Temp-460  FC- ?   Total Time- 16:28  
Yirg.(200g)   Preheat- 375    Actual Start Temp- 288   Warming Temp- 350 for 4:45    Roast Temp-478  FC- 13:17?   Total Time- 14:30  
Sumatra(225g)     Preheat- 350    Actual Start Temp- 255   Warming Temp- 320 for 5:22    Roast Temp-460  FC- 15:30?   Total Time- 16:58  
Sumatra(225g)     Preheat- 375    Actual Start Temp- 284   Warming Temp- 300 for 5:15    Roast Temp-465  FC- 15:30?    Total Time- 17:10
Brazilian(225g)     Preheat- 375    Actual Start Temp- 296   Warming Temp- 325 for 5:05    Roast Temp-465  FC- 13:30    Total Time- 15:10
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