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Topic: More aromaroast questions (58 lines)
1) From: Gene Smith
Okay, having sorted out High airflow from Low (hey, it's progress!) I took
the bottom baffle off the Aromaroast to have a look.  Then I gave it a good
cleaning (EWWW!) and had another look.
Remembering one of the articles I had found on the web, I removed the little
plastic ridge that functions as a stop, preventing the baffle from closing
more.  Strangely enough, there are two sets of stops - one set cast into the
air baffle/ring, and the ridge cast into the casing it sits in.  I suspect
that the little ridge was added as an afterthought - either because it was
decided that the best roast would occur at that point, or (more likely, I
think) somebody got panicky about liability and decided to throttle back on
the temperature before placing the little darling in the hands of the
general public.
With full motion restored to the baffle, I dumped in the max recommended
beans and fired it up in the hottest position with the new results added to
the previous ones:
                Stock    Modified
                Baffle       Baffle
1minute     270F    315F
2minutes    330F    370F
3minutes    355F    400F
4minutes    365F    412F
5minutes    375F    420F
6minutes    377F    425F
7minutes    380F
8minutes    380F
The beans I was using for experiment were already roasted when I started
(supermarket junk) and I started to worry at this point as they were
charcoal black, so I stopped the roaster and emptied them out.
The temperature, however, appeared to have stabilized, and I don't think I
would have gotten more than a few more degrees hotter with the current
setup.
So here are my next set of questions:
1. Have I gotten into a range where I can have a go with the Liquid Amber
Espresso Blend beans that I got from Sweet Marias - without the strong
likelihood that I'll just be ruining some nice beans?  Or do I need to look
for higher temperatures first?  If so, how much higher?
2. A couple of the little rubber feet on the Aromaroast have biodegraded to
goo...is there a source for little rubber feet?  I can't believe that
Melitta had those little rubber plugs made special for that machine.  It
seems much more likely that they would have just designed the piece that had
to be specially made (the housing) to take available rubber parts.
Gene Smith
riding the wild learning curve in Houston


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