Heaps of thanks go to thomas for selling me some of his beans.
I did my first roast yesterday, I decided to roast 1:1 harrar mandheling together just to see if it was feasible (even though its probably not recommended) The result was satisfactory, I tried some striaght away without waiting for it to settle.
Details of the roasting process:
I roasted about 1 cup of 1:1 harrar & mand using the XU1 heatgun, in a dogbowl //\/__//\/ shaped, initially on the high setting however I found that the airflow was blowing beans out of the bowl so I decided to go to the low setting. First crack was reached in 5 mins, because this was my first ever attempt at roasting, I decided to slow things down a bit, delaying 2nd crack to about the 15 min mark. I was very cautious with the HG, as the airflow would blow the beans out of the bowl, resulting in a rather uneven roast. Roasting was stopped after rolling second crack was reached, which was coupled with smoke coming out and presence of oil on some darker beans
Inspection of the roasted beans:
Uneven roast, mainly attributed by blending two quite different beans together, another reason would be my reluctance to move the HG too much fearing the beans would be blown out of the bowl. Id say judging by the visual roasting guide on sweetmarias, my roasts ranged from those on the verge of 2nd crack, to those well into their 2nd crack with oil already appearing.
Freshly roasted the blend had very minimal finish, I wouldnt have called it bland, the aroma was nice, it just lacked the bitterness coffee ought to have (I could be wrong in assuming this dogma).
Tasting 12 hrs post-roast
Ahhh.. the bitterness is back, definitely better finish, more crema and had more body to substantiate the flavours through.
Conclusion: all and all a pleasant and rewarding experience, HG/DB is just so easy and so hands-on that everyone should have a go to at least see what the fuss is all about.