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Thread: FreshRoast SR300 probs

  1. #1
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    FreshRoast SR300 probs

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I received my BeanBay sampler pack on Thursday and have now roasted two batches. Neither have been fabulous and Im not sure why. The main problem I am having is that roasting time is about 5x as long as it was in Albuquerque... really.

    Ok, Albuquerque is a desert and Perth is rather humid, but should I have to add 30 minutes to my roasting time?

    Details - and maybe you can help me problem solve here:

    For those of you unfamiliar with the equipment, the FreshRoast SR300 is made for home roasting. Its max capacity is enough for 10-12 cups of coffee. I usually work in 4-6 cup size batches, which took no longer than 6-10 minutes.

    Yesterday I started with the Vietnamese arabica. Ive never had Vietnamese beans before. I used two scoops (the scooper that came with the SR300 and is about 1 1/2 T) of beans. The timer was almost down to 1 minute before I even heard the first crack. After adding 1 minute at a time for the next 2o minutes (and setting off the home smoke alarm) I had brown, dry beans that smelled really burnt. I let them cool off and ground them this morning. My morning coffee tasted like gas station blend.

    Ok, so I threw the rest of that batch out and started another. This time with the Brasil beans and only enough for 2 cups. Again, it took almost 6 minutes before I heard the first crack. I was determined to let this roast go through, so I patiently stood there, adding one minute at time for the next 20 - adn FINALLY got a second crack! But then I had to add another 5 minutes and still the beans are dry!

    Ive been roasting with this machine - well, not exactly this machine, but this model machine, I gave the old one to my dad before moving and bought a brand new one to bring here. So it was transported in its original shipping box - for 18 months and never had this problem. I would get a nice dark, oily coat beginning somewhere between 4 -5 minutes into roasting and would often have to turn the roaster to cool mode even before the timer was done.

    :( right now Im a bit disapppointed. And I dont want to run two batches back to back (with the machine warm) since its really only supposed to run for 10 minutes at time and Ive been trippling that.

    Thoughts, ideas or suggestions?

  2. #2
    Senior Member shapeshifter's Avatar
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    Re: FreshRoast SR300 probs

    "A nice dark, oily coat"

    I think most people would tell you that already you are roasting way too dark. Ultimately your choice though.

    This type of roast is what wed expect to get in Gloria Jeans and any dont care what the roast tastes like shops.

    Climates are completely different all over Australia so hopefully someone will come in and let you know the best timing for that side of the country.

    Try roasting at night though for a start when its cooler.

  3. #3
    CoffeeSnobs Owner Andy's Avatar
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    Re: FreshRoast SR300 probs

    The same beans are getting good results in Perth (and the rest of the country regardless of climate) so we can scratch those.

    You are running an unused 110v roaster on a step down transformer.

    It simply has to be either the new roaster or the power output of the transformer.

    An electrician can test the transformer with a multimeter for both voltage and amps in-line with the roaster running.* *It might even be the frequency difference as the motors will not work the same even with the same voltage. Your motors will run 20% slower as a rule.

    I suggest you grab a 240V / $20 popper and try that... you will get closer to your target of "nice dark, oily coat beginning somewhere between 4 -5 minutes"

    I suspect you will chase your tail trying to roast on a USA voltage roaster in Oz.

  4. #4
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    Re: FreshRoast SR300 probs

    Here you go:

    http://electricaloutlet.org/frequency

    Rgdz,
    Attilio
    very first CS site sposnor

  5. #5
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    Re: FreshRoast SR300 probs

    Quote Originally Posted by 0E212B364F0 link=1321154929/2#2 date=1321160705
    You are running an unused 110v roaster on a step down transformer.

    It simply has to be either the new roaster or the power output of the transformer.

    An electrician can test the transformer with a multimeter for both voltage and amps in-line with the roaster running. It might even be the frequency difference as the motors will not work the same even with the same voltage. Your motors will run 20% slower as a rule.

    But isnt that the purpose of the transformer - to change the voltage and cycles? The SR300 is listed as using 1600W; I have it plugged into a 3000W transformer.

    And if using this machine set off the smoke detector (ok, I hadnt turned the exhaust on the first time... it didnt go off today when I did) then I believe a popper on an electric stove would be worse, no? Ive never used one, so Ive no experience there. But I do have a whirly pop that I actually use for popcorn and that was even difficult on the small electric burners. Left about 1/3 of my popcorn unpopped.

  6. #6
    Senior Member Pavoniboy's Avatar
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    Re: FreshRoast SR300 probs

    Quote Originally Posted by 657A7C7F7A7D76130 link=1321154929/4#4 date=1321177166
    a popper on an electric stove would be worse, no?
    The popper referred to is a standalone unit that you plug into a socket, not one that you put on a stovetop.
    There is masses of info on popper roasting on this site.

  7. #7
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    Re: FreshRoast SR300 probs

    Quote Originally Posted by 59687F6667606B6670090 link=1321154929/5#5 date=1321178239
    The popper referred to is a standalone unit that you plug into a socket

    Ah, ok. In the US, quite a few people modify their stove top "whirly pop" poppers as roasters.

  8. #8
    Mal Dimal's Avatar
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    Re: FreshRoast SR300 probs

    Behmor Coffee Roaster
    Quote Originally Posted by 56494F4C494E45200 link=1321154929/4#4 date=1321177166
    But isnt that the purpose of the transformer* - to change the voltage and cycles?* The SR300 is listed as using 1600W; I have it plugged into a 3000W transformer.
    Nope.... Only the Output Voltage. The Frequency (cycles) is determined by the incoming mains supply, which in Australia, is 50Hz.

    A 3.0KW Transformer is certainly big enough to handle the load though.

    The link provided by Attilio above, gives you a "rule of thumb" insight into the Ins and Outs of it all.... ;)

    Mal.



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