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Thread: First Roast using Corretto

  1. #1
    Junior Member tmsargent's Avatar
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    First Roast using Corretto

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    First I would like to thank everyone for sharing on this site, it is an inspiration and a treasure of info. This is my first coffee roast ever, so I'm just starting the journey.

    I got a second-hand bread maker for $10 and removed the heating element to give more room. I plan to add further insulation around the pan, using a silicone mat for this roast. Also using the Bosch heat gun with temperature control. I purchased a HeatSnob for temperature measurement and because it is fairly short I decided to install it into the pan directly on one of the flattened corners. I thought it wasn't going to touch the paddle but it did a little, I'll have to adjust the angle for it next time.

    IMG_0003_DxO.jpgIMG_0005_DxO.jpg

    This was all outside with the temperature about 10 C and starting at 8:30pm after the kids were in bed.
    20161013-FirstRoast-300g.jpg

    I preheated the pan to about 120 C before loading 300g of India Elephant Hills AA Grade from BeanBay. I finished the roast at 225C, I'm not sure if I heard some of second crack, but the plan was to finish by temperature. The first crack was just below 200C which was what I was expecting. My heating, cover & fan control was all over the place

    The final result at 250g which would be 17% weight loss.
    IMG_0006_DxO.jpg

    Thanks again everyone.
    DesigningByCoffee, kbc and noonar like this.

  2. #2
    Senior Member Yelta's Avatar
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    Quote Originally Posted by tmsargent View Post
    First I would like to thank everyone for sharing on this site, it is an inspiration and a treasure of info. This is my first coffee roast ever, so I'm just starting the journey.

    I got a second-hand bread maker for $10 and removed the heating element to give more room. I plan to add further insulation around the pan, using a silicone mat for this roast. Also using the Bosch heat gun with temperature control. I purchased a HeatSnob for temperature measurement and because it is fairly short I decided to install it into the pan directly on one of the flattened corners. I thought it wasn't going to touch the paddle but it did a little, I'll have to adjust the angle for it next time.

    IMG_0003_DxO.jpgIMG_0005_DxO.jpg

    This was all outside with the temperature about 10 C and starting at 8:30pm after the kids were in bed.
    20161013-FirstRoast-300g.jpg

    I preheated the pan to about 120 C before loading 300g of India Elephant Hills AA Grade from BeanBay. I finished the roast at 225C, I'm not sure if I heard some of second crack, but the plan was to finish by temperature. The first crack was just below 200C which was what I was expecting. My heating, cover & fan control was all over the place

    The final result at 250g which would be 17% weight loss.
    IMG_0006_DxO.jpg

    Thanks again everyone.

    Welcome to Coffee Snobs.

    Nice looking roast, temps and times seem about right, great effort for a first roast.

  3. #3
    Mal Dimal's Avatar
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    Welcome "tmsargent"...

    Geez, I wish my first roast with a Corretto was as well controlled and looked as good as yours mate...
    Terrific looking end result there...

    Probably the only advice to offer, would be to start trying them from day one/two (as the case may be) and track the flavour development and changes over time, to get a feel for when the coffee tastes best to you.

    Also, you may have read elsewhere of the importance to keep good records of each batch including taste notes, so that you have a ready reference for what works (or doesn't) for each bean type you roast. The India El.Hills is a real good'n by the way, so I'm sure you're going to enjoy the end results in the cup...

    Happy roasting...

    Mal.

  4. #4
    Life-long Learner DesigningByCoffee's Avatar
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    Welcome!
    And I second the above - great first roast! Enjoy the journey, ask questions and keep learning

    Cheers Matt

  5. #5
    Senior Member skidquinn's Avatar
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    Looks pretty damn good to me. Well done. Don't know what bean you have been using previously, but roasting at home is a huge step up in creating great coffee at home. Good luck!
    Dimal likes this.

  6. #6
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    really great roast bro..
    they look exactly like commerical roasted beans..
    GJ!

  7. #7
    Junior Member tmsargent's Avatar
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    Thanks for the messages guys, it been a great experience. I had my first coffee about 14 hours after in a plunger, lots of bubbles as expected. Mostly I drink a latte or long black which I tried about 24 hours after roast, it was good but felt I need a darker roast. I have found it developing better over time, but it is almost gone! My wife also enjoys my coffee, I didn't drink it all. That is one of the reasons I liked the idea of the Corretto as it could handle a decent size roast.

    So tonight I roasted 400g of the Elephant Hills earlier in the evening when it was about 21C and a little breezy. This time I kept things a little simpler, the fan was continuously on low and I didn't do any covering of the roasting pan. The only adjustments I made during the roast was the heat gun temperature which I recorded in Roast Monitor. I wanted to roast a little darker this time, not sure how much darker it is. The temperature probe would have been higher in the beans and registering higher temperatures than the previous roasts. I'll have to adjust the probe angle again for next time and set it a bit lower.
    20161015-2nd-400g-IndiaElephantHills-232C.jpg

    The final product with the previous roast in the cap, to me they look the same.
    IMG_20161015_194115.jpg

    Resulting in 333g, the same weight loss of 17% as was my first roast. Which is not bad, but this time I was definitely in a rolling second crack when I started cooling the beans, they were still cracking.

    Tim

  8. #8
    Mal Dimal's Avatar
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    Looking good Tim...

    See how you go with the "taste test" over the next (I was going to say few but maybe couple is more appropriate) days, and try to compare with the previous lighter roast.

    If I was roasting these for myself, I guess I would shorten the profile up a bit overall to about 18-20 minutes total. It's been my experience with a Corretto, especially without an insulating lid, that the beans' intrinsic flavours tend to flatten out quite a bit, but that's something you can play around with as time goes along...

    Looking great though mate...

    Mal.

  9. #9
    Junior Member tmsargent's Avatar
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    Behmor Coffee Roaster
    Thanks for the advice Mal, appreciated. I'll try for a few minutes shorter. I am mainly looking at the rate of rise C/min to adjust my heat gun temperature, keeping the rate between 7-10 C/min for the most part.

    I plan to make an insulating lid for it so the weather doesn't impact the roast as much, but it would also increase the roasting capacity I expect.

    I like the idea of home roasting and getting quite a variety of coffee experiences with just a single input bean, then you can vary the beans, endless variety.
    Dimal likes this.



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