I've been following the thread on Coffee Snobs too and tried a few roasts with various profiles. It has plenty of Yemen characteristics but has yet failed to inspire...
What your your collective thoughts? It's the only bean I have yet to dial into the usual Nano awesomeness!
Last edited by Jaybee on Tue 20 Jul, 2021 3:16 pm, edited 1 time in total.
I have shelved this bean for the moment, for similar reasons. I haven't found ( ie used other suggested profiles) or made my own profile to extract the best from this bean. Perhaps some backward mapping from a known good profile from another roaster brand, then morphed into a Kaffelogic profile would help?
My totally non scientific ( and probably erroneous) feel is that this bean needs a significant thermal momentum but the small weight of the beans and the slightly shorter roast times required for the Nano make that sweet spot ( pun intended) elusive.
I've had another go. I've extended my Nano version i-coffee profile (My last machine's standard profile which worked well with this bean) out to 15 mins and am now in the kicking tires for a week or two phase. I did a couple of batches, so I'll start testing sooner rather than later.
The first time I tried this profile, it was shorter at about 10 mins long and never developed the bean properly, if this does better I may even stretch it again. Seems a very long time for this sort of roaster, but hey, desperate times...
Included are the curve and the profile to play with. Unfortunately the thumb drive died after the roast (of shock maybe) so I can't share the log.
I-coffee II Profile.jpg (139.18 KiB) Viewed 10431 times
There's always the possibility, of course, that not everybody likes the Yemen as much as others do. I'm about to open a couple of bags at about 12 days post-roast, about 100g roasted using the Raost at 1.8, which looks awful but I might be surprised. The other 200g is using Steve's MD3 at 3.0 which I've enjoyed before. I have at least half of my coffee with milk, so super light doesn't work for me.
EDIT: So, I tried the Raost V3 at 1.8 bag, and while it doesn't look the best the result is very pleasing as an espresso. Tomorrow I'll see whether that was a fluke.
A bit early to have developed a full flavour profile, but the mouthfeel and body are superb with the latest 15min roast. Let's see where this bean goes over the next week or two (If it lasts that long!)
Hi Jaybee
Bit of a noob here, pretty new to the Nano.
I tried this profile today - it wouldn't work (!?).
The device kept stopping and warning me 'heat too fast, please check beans'.
I'm getting 232v, not sure if this has anything to do with it.
I tried maybe 3 times, on the last try it continued without warning, but at 4 minutes was still at 30º.
Any ideas what setting I can modify?
EDIT: just found the KL post referring to this error message. Maybe the Preheat power needs a look?
Y4.klog
YemenSpro.kpro
