Home Roasting Recommences

March 9, 2009

After one too many stale batches from Peets, Victoria and I have decided to invest in an upgrade to our home roasting gear. Sometime this week we’ll receive our new roaster and 8 lbs of green beans.
![gene cafe](http://forgeover.com/files/genecafeanglemed.sm.jpg)

Besides the high incidence of stale beans (and subsequent dreck espresso), Peets seems to average a roughly 25% runt rate. Here’s Vick and I sorting out the runts.
![runt sorting](http://forgeover.com/files/IMG_5911.jpg)

Comments

comments

2 comments

  1. Comment by Abigail

    Abigail March 9, 2009 at 4:33 pm

    What are the runts, other than smaller? Do they taste funny?

    I’m going to try beans from Philz this week, I think.

  2. Comment by Tucker

    Tucker March 9, 2009 at 7:48 pm

    Runts are imperfect beans. In many cases they are fragments of beans that blew up during the roast. These fragments, as well as the more cylindrical runts are evidence of substandard green beans. I recall from my roasting days that I would average about 2-5% runts.
    In my Peets exercise I didn’t even bother to remove the beans that had divots blown out of their cell walls. This is another sign of a bad bean.

    In many cases the fragments are the result of mechanical intervention, but the end result (bunk coffee) is the same, due to the rapid off-gassing of CO2 that ensues. This off-gassing causes the beans to loose their good qualities.

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