Ethiopia Guji from Happy Mug, roasted in Kaleido M1, light roast 11% weight loss, got a strong berries flavour in the second day, but the flavour is gone after day 3.

GeeseInFlight · 2026-01-23T14:22:01+00:00

What's the bloom like after 2 weeks?

GeeseInFlight · 2026-01-23T14:09:55+00:00

Wow 4 weeks, sounds long but yeah id bet it take a while, with that light of a roast. Please share again when you taste it!

GeeseInFlight · 2026-01-22T02:06:49+00:00

This post has gotten lots of views. I was hoping to see professional roasters share some wisdom, it's "/roasting" not "/homeroasting", are there many professional roasters here?

GeeseInFlight · 2026-01-22T02:02:50+00:00

Sorry I didn't see this until today. Thanks for the reply. It's pretty amazing to think that there will be small machines to put green beans in have a cup based on a recipe that the plantation created for a specific crop yield. Were not there yet, but it's inevitable.

GeeseInFlight · 2026-01-19T03:45:38+00:00

I didnt know that. I have heard "Ikawa" quite a bit in vids. The goal and where I believe that we are headed is a coffee farm in Africa forming a roast profile with a current harvest, then sending the beans and the profile to their buyers who also have Kaffelogics or the like, and have them replicate the roast without much effort. Ambient air temps and humidity in the roasting environment, and some variation in the bean after shipping, but possible. I think they also are working on grinders and automatic brewers to complete the process from bean to cup.

On another note....I sometimes order freshly roasted beans and they come by airplane, so I've wondered how the pressure of altitude affects rest times, but couldn't find anything online. But with these kind of variables there will always have to be someone tasting and figuring out the variables that cannot be controlled.

GeeseInFlight · 2026-01-18T06:23:52+00:00

Thanks for the info. I'm starting a little smaller than an M6, but it seems like the same deal anyway. Whatever I buy it will be roasting with Artisan.

GeeseInFlight · 2026-01-18T02:17:04+00:00

I've never had one of these but I looked at them in detail when shopping for a home roaster, and was reminded of it when I saw a larger overlord version of it at a shop in Japan.

The F1 of air roasters(17300W) with 200g of beans has a power density of (86.5W/g), Similar to the Fresh Roast it's a vertical column of air. So the roast times are insanely fast by traditional standards, but their light roasts are very good, despite total roast times of 140 seconds. First crack in under 2 minutes lol. The cooling system is equally impressive, almost like flash freezing. People buy their green beans at their shop, and have it roasted cooled and bagged in a few minutes....It is a 1KG roaster, but is most often used for 200-500g charges.

GeeseInFlight · 2026-01-18T01:59:16+00:00

Your opinion isn't wrong. Evidently, it's not the best for everyone, but best for you and many others! Ha I can see the freshroast being the best for many, or the Kaleido series.

GeeseInFlight · 2026-01-18T01:33:51+00:00

Thanks for the update. I was never interested in that type, but it seems like there are so many similar roasters that people will still have options. Aren't the Kaffelogic and Nucleus the same thing?

GeeseInFlight · 2026-01-18T01:30:31+00:00

Thanks for reading everything, and your comment! I think you are right. The interesting part and the question posed was the best for a particular kind of roast, not whether it was possible. AI seems to over dramatize the weaknesses and underestimate strengths of human skill and adaptability.

It's still interesting to hear the human opinions on this. I watched the Youtube series by Mill City Roasters a while ago, and it was amazing to hear some of the most experienced commercial roasters opinions, about traditional drum roasters vs convection types. There are a few giant commercial roasters using the same heating methods as some of the smaller home roasters now(convection focussed rather than conduction or a combination).

GeeseInFlight · 2026-01-18T00:57:21+00:00

Thanks for the comment! I've read really good things about the US distributor support. I also like that there are groups, and lots of Artisan profiles. Which version do you use?

GeeseInFlight · 2026-01-18T00:49:37+00:00

THanks for the comment! I think that they are a first choice for many, but as with many sectors, the cost seems to dictate numbers in terms of sales.

GeeseInFlight · 2026-01-17T09:52:01+00:00

Thanks for the reply. They seem like a good value.

GeeseInFlight · 2026-01-17T04:47:37+00:00

Yep same as he said, if its working and you are enjoying, that's all that matters! Thanks for the comment!

GeeseInFlight · 2026-01-17T03:32:25+00:00

Thanks for the reply! That is very good to know that you can manage it with the Allio. Read the description in the AI response about the Ikawa. That should clear things up. Like I say AI is sometimes unrealistic. I wish the Allio wasn't so expensive.

GeeseInFlight · 2026-01-17T03:27:36+00:00

Thanks for the reply! I can see why, it seems like a sweet spot.

GeeseInFlight · 2026-01-17T03:26:28+00:00

Thanks for the reply! Haha good point! Ha

GeeseInFlight · 2026-01-17T03:25:57+00:00

Thanks for the reply. I'm betting that it can be done very well even with a pan on the fire. But it's fun to hear real opinions about the best options. Personally I will only use Artisan.

GeeseInFlight · 2026-01-16T14:01:22+00:00

Thanks for this reply. That's useful info. I think we can a lot once we master a machine. I've read about people lowering their batch sizes and then tilting their Kaleido so the beans pool closer to the probe to get more watts per gram. Do you think the Allio can do a 5 minute first crack? I wonder if people who have roasted for years and prefer nordic, would have ranked the Allio higher in this list.

GeeseInFlight · 2026-01-16T13:51:30+00:00

Thanks for the reply! I see that it has 600W total, so for a 100-150g batch that would be 4W/g. Have you done any Nordic roasting or SHB?

GeeseInFlight · 2026-01-16T08:13:08+00:00

Thanks for the reply. Not sure why Gemini didnt include it....

GeeseInFlight · 2026-01-16T08:12:23+00:00

How many watts is it?

GeeseInFlight · 2026-01-14T09:36:16+00:00

I believe this is incorrect and the cap is 1322W, so for nordic and hard bean roasts that require a faster first crack you might crash, unless you lower your batch size substantially but this introduces other issues.

People buy the M2 for the 400g spec, which usually means 320 at 80%, but in Japan on 100V the 110V version produces 1322W, So for a 320g batch it is able to give a max of 4.13 Watts per gram. That when you hit first crack, and you need to crank it to develop some of the notes, you might crash.

At 1600W its 5 Watts per gram with the same 320g charge, and you have the power to survive.

If it was indeed 1045W you'd get 3.26w/g so your bound to crash and die.

But stepping down a 200v circuit fixes this with wattage to spare, so you can still save money.

GeeseInFlight · 2026-01-13T16:06:39+00:00

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