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Topic: Maria's Moka Kadir Blend - Rocks / First Roast (6 msgs / 127 lines)
1) From: Jamie Dolan
HI;
I have the Maria's Moka Kadir Blend on it's way.  I was a bit nervous
about the mention of rocks in it.  I don't know that I have ever found
rocks in my beans, I haven't as far as I remember.
Has anyone found any rocks in these beans?  How often?
I think I am going to order a backup set of burrs for the mazzer.
Wrecking the burrs is the worst thing that would happen isn't it?  It
would not cause any other damage to the grinder would it?
Between, Maria's Moka Kadir Blend, El Santo and Johnny, and New
Classic Espresso; which would be the best to use as my first roast in
my new Behmor?  Any advice on that first roast in the Behmor?
Thanks
Jamie
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2) From: Kevin C
Sure, found a number of rocks and concrete fragments over the years. Mostly from Yemen and Ethiopia. I put them in my patio when I was laying concrete and stone, but I've forgotten exactly where. Allon even sent me a couple. I've never ground one that I am aware of. I usually spot them after roasting when I'm scooping them into my storage containers or bags. 
I've also found a few twigs, bits of twine. 
Someone found an ear ring (may have read that one in Roast mag).
-kc 
On Dec 21, 2010, at 5:16 PM, Jamie Dolan  wrote:
<Snip>
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3) From: Yakster
I've found a few rocks in green coffee beans, but I am a serious bean culler
so they have not made it into the roaster let alone the grinder (so far).  I
finally moved my lighted magnifying glass lamp out to the coffee bench to
make it easier on the eyes.
I found a small, flinty looking rock in the Guatemala Huehuetenango Finca La
Maravilla in September 2009.
I *think* that I found a rock in Moka Kadir once.  I know I found a dirt
clod once.  I just roasted some of the Moka Kadir up and it's a favorite of
mine.  I take it to Full City or FC+.
-Chris
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4) From: Jim Gundlach
On Dec 21, 2010, at 5:16 PM, Jamie Dolan wrote:
<Snip>
I have found two in what I estimate has been more than 800 pounds of Tom's beans.  I started to keep the first one to do a collection of rare things.  My wife pointed out all the junk I collect and asked if I really needed to add to it. I tossed the coffee pebble.  I have also found a corn kernel. Did not keep it either.  But, I do keep the next set of grinder burrs on hand just in case.
   pecan jim
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5) From: Paul Leung
Perhaps I was just unlucky but I found three small rocks and a dirt clod in just 
3lbs of Moka Kadir. One of the rocks lodged in my Kyocera ceramic burr handheld 
grinder, completely locking it up and causing a small divot in the bottom burr. 
That 4 oz batch was roasted by air popper, the other subsequent batches were by 
Behmor.
As suggested by others, I load the drum and then spin and shake it over the sink 
for a while (you could also use the cool cycle w/o the chaff collector), letting 
any peaberries, bean fragments, debris, and rocks fall out before roasting. 
That's how I discovered the two other rocks and the dirt clod. I imagine small 
rocks would tumble out anyway during the roast. I didn't take the mention of 
rocks in MK seriously until that, and ever since, have been pouring out the 
greens on a white plate or cutting board to help identify any bean-sized foreign 
matter. The rocks I found were dark grey/black, and being color-blind, they are 
very difficult for me to spot post-roast. They stand out a little better next to 
green beans.
The pre-roast shake is important as I had two roasts stall and smoke after a 
bean sliver/peaberry partially exited the fine mesh drum, jam up against the 
chaff collector, and then burst into flames (they never seem to try to escape 
until mid- to late-roast!). The first time that happened was my second ever 
roast on the Behmor. I got pretty nervous after that, esp. now that I use a 
Baratza Vario, and much more diligent about sorting the beans.
I've only found one other rock and it was in a DP Ethiopian. I'm sure the 
potential for foreign matter is greater in DP beans vs. WP beans.
Paul
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6) From: Jamie Dolan
Thanks for all of your responses.  I'll use some extra care with these
beans just to make sure that I find any rocks that might be hiding.
I think I'll order that extra set of burrs to be on the safe side,
just in case I miss a rock.
Thanks again, and Merry Christmas.
Jamie
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