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  1. #1
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    HeatSnob chat

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    How do I change the Heatsnob to Farhenheit? Also how much of the probe should be in the bean mass? I did a roast today and I have the probe set really low in my breadmaker to ensure that it stays within the bean mass and I can only have about 4-5mm of the probe in the pan to keep it from getting hit by the mixing paddle, and I only hit 141 Celsius during the roast, despite hitting first crack at 6 minutes. . .

    Thanks!

  2. #2
    CoffeeSnobs Owner Andy's Avatar
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    Edit the settings file:

    Documents/CoffeeSnobs/Preferences.txt

    Code:
    # Temperature scale - either Celsius or Fahrenheit.
    temperatureScale=Celsius
    You need to spell it right too!

    Probe? The tip reads the temperature but if the probe is a tight fit then it will act as a heat-sink and give you the temperature of the metal it's going through.

    You can also use the "multiplier" in the preferences file to calibrate your setup... or calibrate the probe to boiling water.

  3. #3
    CoffeeSnobs Owner Andy's Avatar
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    Quote Originally Posted by artman View Post
    Are the slider min/max values user adjustable? Or can they be replaced with presets?
    Not user adjustable but they are 1-100 so you can plot percentages... which is also perfect for plotting manual Behmor buttons as P1=0% P2=25% P3=50% P4=75% P5=100%.

    Quote Originally Posted by artman View Post
    Is there a way to manually capture other values, eg entering A and B temps?
    The comments field allows you to type something in, it gets tagged on the primary plot line and also added to the CSV file so you can see/use it later.

    You can also change the value of the 5 buttons if its something that you find yourself typing a lot. In your example it might make sense to have a button called "P5 Manual" instead of "Rolling Second Crack" and that way you can plot on the line when you use it.

    Quote Originally Posted by artman View Post
    Also, is there a way of loading the csv file with the colours active, if loaded as a template it is all green ready for next roast.
    Yep, that's covered in the Preferences.txt file ( My Documents/CoffeeSnobs/Prefferences.txt )

    Code:
    # Colour of template display (RGB 0,0,0 to 255,255,255).
    templateColours=0,128,0 0,100,0 0,128,0 0,128,0 0,128,0 0,128,0 0,128,0 0,128,0 0,128,0
    If you want it to be blue then change the first set of RGB number to 0,0,255 eg:

    Code:
    # Colour of template display (RGB 0,0,0 to 255,255,255).
    templateColours=0,0,255 0,100,0 0,128,0 0,128,0 0,128,0 0,128,0 0,128,0 0,128,0 0,128,0

  4. #4
    CoffeeSnobs Owner Andy's Avatar
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    had a question via email...

    ...are the event buttons changeable
    Yes they certainly are.

    Edit this section in the preferences.txt file to have the 5 buttons become a shortcut for whatever you like.
    (my documents/coffeesnobs/preferences.txt)

    Code:
    # Text for tag buttons.
    tagButton1=First<br>Crack
    tagButton2=Rolling<br>First
    tagButton3=Open<br>Air
    tagButton4=Close<b>Air</b>
    tagButton5=Drop<br>Beans

  5. #5
    CoffeeSnobs Owner Andy's Avatar
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    Quote Originally Posted by gz20tt View Post
    Cheers Andy.
    I'll keep an eye out in Beanbay for the probes to come back in.
    New Probes have landed and are in BeanBay now...


    CoffeeSnobs - BeanBay - Other Stuff - Spare Thermocouple Probe Stainless Braid 25mm

    CoffeeSnobs - BeanBay - Other Stuff - Spare Thermocouple Probe Stainless Braid 100mm

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    I'm in Indonesia just bought 3kg roaster, classic drum. It seems having problem in temperature reading on CoffeeSnobs software (Roast Monitor).

    I noticed some alerts on Roast Monitor that thermocouple shorted to power and can't read the primary meter.



    Also there is huge disparity temperature reading between Autonics TCN4S and in the Roast Monitor. It shows right temperature while in Roast Monitor shows up in thousands degree Celcius.



    I've tried reinstall Roast Monitor but still occurred the same.
    Anyone can help?

    Thanks for the help.
    Last edited by gilangpram; 10th May 2017 at 11:55 AM.

  7. #7
    CoffeeSnobs Owner Andy's Avatar
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    Remove the probe from the roaster and test it on your desk (insulated).
    Let me know if Roast Monitor works okay then.

    It sounds like a voltage leak on your roaster.

  8. #8
    CoffeeSnobs Owner Andy's Avatar
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    the software adds the temp figure on the line every now and then

    If your temperature drops fast it will plot a blue temperature, if it rises fast it will plot a red one.


    Is there a way to turn this function off?

    Roast smoother!
    It's possible to roast with one temperature when you drop the beans in, one at the turn and one when you drop the beans out.


    I am guessing it does this to alert you if you are off your target too much

    The bottom left "Target field" will change colour to show too hot, too cold and goldilocks just right.


    I had not tried to edit/view/open the .csv files, i'd saved a roast in RM in .csv, and then tried to load it as a template.

    If you open in Excel and save it the columns can shuffle, blame Microsoft not us!
    Upload one of your saved templates (saved from Roast Monitor, never viewed in excel) to this thread so we can test it.


    Is there a video with the heatsnob and software doing a roast?
    Don't know. Is there? I think it would be a pretty boring 20 minute video though!


    Hi everyone.
    I'm reading this RML and its kinda a killer for me... I'm still learning the basics.
    2 questions. 1. Is there any way to increase the size of the ROR or rate of change axis so it looks bigger.
    2. with the smoothing - whilst 10 is the default... mine with a few roasts is showing a lot of "saw tooth". anyway/suggestion to make it smoother?
    Many thanks
    Raymond

    1: Don't really understand the question. If you are trying to change the graph scale you can in preferences.txt
    Which should be on your PC in: \Documents\CoffeeSnobs\preferences.txt
    Edit it in notepad, the temperature scale (vertical) and the time scale (horizontal) can both be changed easily.
    Code:
    # Temperatures (vertical scale) in degrees.
    minTemperature=0
    maxTemperature=300
    
    
    # Horizontal scale in minutes.
    duration=30

    2: Smoothing. Also set in the preferences.txt file. Post a saved JPG of one of your roasts so we can see what you mean.

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    I've attached a template that's not working RMTemplate.zip

    Appreciate if anyone can help out! thanks folks.

  10. #10
    CoffeeSnobs Owner Andy's Avatar
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    Took half an hour of head scratching (and a little swearing) but I found the problem.

    heat off, fan full

    Has a comma in the note which then added another column to the CSV.

    Removed the comma and it works fine.

    20171114-FIXED.jpg

    ...will also talk to the developer to see if we can strip commas from the note field in a future version.
    Till then, please don't use a comma in the note field (I think most everything else is fine though)

  11. #11
    CoffeeSnobs Owner Andy's Avatar
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    HeatSnob on a Mac --- discussion moved to it's own thread.

    http://coffeesnobs.com.au/home-roast...tsnob-mac.html

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    20180506-140gRatimessy.jpg

    Heatsnob has gone a bit haywire, very rough line and bouncing around a lot.
    Roasted 4 batches tonight, the first 3 it worked fine then the last it did this.
    Have checked the leads, nothing seems to be out of place.
    Occasionally i'll get some strange spikes that even out pretty quickly, however this time it was wonky the whole roast.

    Any ideas?

  13. #13
    CoffeeSnobs Owner Andy's Avatar
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    I can see in your screen-shot it says what the problem is "Thermocouple shorted to power"

    So something changed on your electrical circuit. Try running the notebook on battery should stop the message.
    To troubleshoot, turn off the fan/heater/washing machine/aircon whatever it was on that power circuit that you turned on during the 4th roast.

    The Heatsnob and thermocouples are good at "seeing" small voltage differences and will report leaks to earth or power. It's not a problem with the HeatSnob or probe, it's something else in your roasting setup or house. You can insulate the probe from the roaster and the problem will be hidden but finding the actual problem is a better solution.

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    Quote Originally Posted by Andy View Post
    I can see in your screen-shot it says what the problem is "Thermocouple shorted to power"

    So something changed on your electrical circuit. Try running the notebook on battery should stop the message.
    To troubleshoot, turn off the fan/heater/washing machine/aircon whatever it was on that power circuit that you turned on during the 4th roast.

    The Heatsnob and thermocouples are good at "seeing" small voltage differences and will report leaks to earth or power. It's not a problem with the HeatSnob or probe, it's something else in your roasting setup or house. You can insulate the probe from the roaster and the problem will be hidden but finding the actual problem is a better solution.
    Thanks Andy, i only run the laptop on battery when roasting, i'll have a closer look and make sure the wires are seated in the connectors properly.

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    Heatsnob working A.ok again, must have been a poor connection somewhere.

  16. #16
    CoffeeSnobs Owner Andy's Avatar
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    Again, please read post 13 above.

    Shorted to power error message really means that the HeatSnob could see a problem, not it had a "poor connection somewhere".

    Clothes dryer, air-con, compressor, pop-up toaster... something on the same circuit is "leaking" power sometimes. Don't be surprised if the problem comes back and it's not the HeatSnob causing it.
    You can easily identify what else is on the same power circuit by turning off that specific power circuit at the electrical meter and then seeing what doesn't work in your house.

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    HeatSnob Temperature Data Logger Thermocouple and Roast Monitor USB software

    Hi Andy, thanks I understand however I donít have the computer plugged into the mains when I roast so donít believe this could have been the issue?

    The roaster is plugged in of course, could another appliance be causing an issue through the roaster power? In any case Iíll keep in mind to turn of any other appliances in future if it happens again

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    Yep, it was my wife's vibrating exercise platform, she turned it on mid way through a roast last night and the readings went haywire. Thanks for the assistance.

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    CoffeeSnobs Owner Andy's Avatar
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    Quote Originally Posted by Janus View Post
    Yep, it was my wife's vibrating exercise platform, she turned it on mid way through a roast last night and the readings went haywire. Thanks for the assistance.
    Nice to know I know what I'm talking about (sometimes at least). Those symptoms are always a different appliance on the same electrical circuit as the HeatSnob computer.
    I do appreciate you letting us all know.

    You might want to get the "vibrating exercise platform" looked at by a sparky. It might be a suss plug-pack or similar that's leaking voltage that the Heatsnobs sees. Better to be safe than sorry.

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    Thanks Iíll look into it. For the record, the computer is not plugged in to mains while i roast, only the roaster is plugged in.

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    Senior Member chokkidog's Avatar
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    Quote Originally Posted by Andy View Post
    Nice to know I know what I'm talking about (sometimes at least). Those symptoms are always a different appliance on the same electrical circuit as the HeatSnob computer.
    I do appreciate you letting us all know.

    You might want to get the "vibrating exercise platform" looked at by a sparky. It might be a suss plug-pack or similar that's leaking voltage that the Heatsnobs sees. Better to be safe than sorry.
    ;-), ;-), ;-).... say no more!

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    Can I plug the probe into just a normal multimeter?

  23. #23
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    Maybe!?!?
    Not enough information to give a better answer. Most "normal" multimenters don't do temperature, if your multimeter does temperature then its likely but not guaranteed the probe will work.

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    Quote Originally Posted by Andy View Post
    Maybe!?!?
    Not enough information to give a better answer. Most "normal" multimenters don't do temperature, if your multimeter does temperature then its likely but not guaranteed the probe will work.
    Yeah, think I'll just get the heat snob. I've got an old PC kicking around too.

    I'm using a correto setup. Is there a 'best position' in the bread maker?

  25. #25
    Mal Dimal's Avatar
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    Quote Originally Posted by crazyhakins View Post
    I'm using a correto setup. Is there a 'best position' in the bread maker?
    Probably stick with any of the well known brands such as Breville, Sunbeam, etc...
    Lots of CSers use these so can be helpful if you need to seek advice about setting up, problems, etc...

    Mal.

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    Quote Originally Posted by Dimal View Post
    Probably stick with any of the well known brands such as Breville, Sunbeam, etc...
    Lots of CSers use these so can be helpful if you need to seek advice about setting up, problems, etc...

    Mal.
    I have a feeling crazyhakins meant what position is best for the temp probe hehe

  27. #27
    Mal Dimal's Avatar
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    DOH...

    Mal.

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    I tried installing the heat snob thermocouple into a Behmor 1600 plus , with Andy's original instructions (drill 3mm hole all way through, drill 4mm outer case only), I couldn't fit the probe in. The probe itself is 4mm diameter.. but that means it won't fit though the 3mm hole inside the chamber... am I missing something here? and how is the probe fixed onto the outside case with the m6 thread? I currently have the long probe 100mm, should I order the short 25mm probe?

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    justacuppa, I have three probes here (2 x 100mm and 1 x 25mm) and upon measuring all seem 4mm. Maybe the probe size has changed since the instructions were written? Would just drilling the 3mm hole out to 4mm be the way to solve the problem? Maybe a 5 or 5.5mm in the outercase and either tap or use the probe to tap an m6 thread?

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    Quote Originally Posted by simonsk8r View Post
    I have a feeling crazyhakins meant what position is best for the temp probe hehe
    Bang on. I was wondering if Andy or anyone else had installed one on a coretto and where they placed it to get a good reading?

  31. #31
    Senior Member flynnaus's Avatar
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    I still have a corretto but not in use. It has a modified Breville single loaf bread maker and I drilled a hole through the side and into the corner of the square based pan where it is least likely to be hit by the agitator. I had to use a 100ml thermocouple (TC) and the probe projected about 15ml into the bean mass and about 5 ml from the bottom. You can see the hole in this pic



    Others have used a bead type TC fed down the side of the pan and through a hole int the side..
    Last edited by flynnaus; 24th August 2018 at 08:46 AM.

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    Quote Originally Posted by flynnaus View Post
    I still have a corretto but not in use. It has a modified Breville single loaf bread maker and I drilled a hole through the side and into the corner of the square based pan where it is least likely to be hit by the agitator.
    Mine still in use. Did exactly the same thing.

  33. #33
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    The "best" location actually depends on the batch size you decide to settle on and the volume/shape of the bread-pan.

    To work this out, load up your bread-pan with beans until you notice that agitation starts to become sluggish. Reduce the batch size until vigorous agitation is restored then weigh the beans. Adjust the batch up or down until you reach a simple weight - 500g, 600g, etc. With the weight decided, put the beans back into the bread-pan, level off and mark the height of the beans on the inside of the bread-pan. Identify a location that will clear the kneading paddle plus be as far from the heatgun air blast, and then drill a hole ~30mm below the batch height level you marked earlier.

    This will give you a reliable position from which to measure the bean-mass temperature and be comparable to the majority of recordings made in drum roasters. Have determined this via a lot of experimentation and cross referencing. You can of course, adjust the vertical position of the drilled hole(s) to suit different batch sizes.

    Hope this helps...
    Mal.

  34. #34
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    Andy , Is this heatsnob coming back in stock ?

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    CoffeeSnobs Owner Andy's Avatar
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    Quote Originally Posted by skeevs View Post
    Andy , Is this heatsnob coming back in stock ?
    Yes!
    The factory is building our next batch right now and there was some lag with the mob that does the aluminium extrusion case but it's still happening.

    Use the [Contact Us] on the site to get added to the notification list, we'll let you know when I can touch them!

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    Hi all

    Thought I’d try here instead of a new thread.


    Install a new 25mm thermocouple as per the install template in the top back of left side panel on my Behmor.


    On two seperate roasts I got an error message at the 13.5 minute point and the probe temp read out dropped 10 degress and then stayed flat for remained of the roast. Temp was 135 degress one roast and 140 degress the other.


    Roasting on a Lenovo T400 on battery power (not plugged into power).
    Any ideas on what to look for to fix?

    Thanks

    Martin


  37. #37
    CoffeeSnobs Owner Andy's Avatar
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    I got an error message at the 13.5 minute point
    Hey Martin, my telepathy hat isn't working well enough to guess what the error was, can you give me a clue?

    What else happened at the 13.5 minute mark?

    The errors are very specific and should help identify what the problem was.

    I also notice you bought it more than a year ago, has it been working normally up till now?

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    Hi Andy
    sorry my tin foil hat has been taken off now so you be able to tell what the error was
    Error on both occasions was ‘thermocouple shorted to power’
    Im running the laptop off battery power so not sure what else it could be.

    The heatsnob I purchased 12 odd months ago I use with the bead probe in the bean mass and is fine.
    the unit I’m having issues with I purchased from a snob recently. I’ll swap the two heat snobs around to see if it is the recently obtained unit or not.

    Any other reason when this error could be happening?

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    D9C29CBA-B3C0-4CE4-AFBC-D6F7F97123FC.jpg
    Hopefully this picture helps also

  40. #40
    CoffeeSnobs Owner Andy's Avatar
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    Your graph looks fine, typically if there is a problem you will get large 100 degree spikes where it lost signal but yours look good.

    There was something ugly at the 6 minute mark but it recovered okay.

    I doubt the Behmor is the problem as it's chassis is grounded well but even so, the electrical noise from the 240v relays switching on and off could give some transient errors. Because they are 10 seconds apart I doubt they are a real problem and more likely to be sensitivity of the probe not the HeatSnob.

    I would try your other 25mm probe and see if it goes away.

  41. #41
    Senior Member chokkidog's Avatar
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    I've sometimes had that type of data logging during two types of events. One was a ferocious thunderstorm where every lightning strike was recorded.
    The other is more commonplace and occurs when my phone is near the roaster and I have turned the home wi-fi off on the phone and I'm accessing the internet via mobile data.
    Some say it's their wife's vibrating umm, 'foot platform'.....

  42. #42
    CoffeeSnobs Owner Andy's Avatar
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    Thermocouples work by producing tiny voltages in two dissimilar metals when heat is applied, so they are very sensitive to stray voltage anywhere.

    Lightning strikes make sense as the voltage would travel through the earth of your roaster or laptop charger and get recorded in Roast Monitor. Never heard of that but it's sorta cool too.

    Mobile phone transmission also makes sense, it's a powerful transmitter in close range. You might find moving it a couple feet away or changing the orientation might help.

    If the graph is still readable it's not a biggie. Some dodgy home devices will output so much noise the HeatSnob can't get two good readings in a row, it's not a fault in the HeatSnob as much as it's just telling you what it can see.

  43. #43
    Senior Member chokkidog's Avatar
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    I found the photo of the thunderstorm log, it didn't show an alert but other similar events with the phone have. I don't have an issue with these events happening.... once you're aware of it it can just be ignored. Roast is unaffected.
    Attached Images Attached Images

  44. #44
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    Very cool chokki'...

    Mal.

  45. #45
    Senior Member CafeLotta's Avatar
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    Is this original Behmor temperature probe location shown earlier in this thread still the recommended placement?

    25mm v 100mm probe? Any major differences in use?

    Is single probe, single heatsnob the best set-up for the Behmor?

    Just thinking it might be time to take it up a notch. Appreciate any insights from those that have gone through the process.

  46. #46
    CoffeeSnobs Owner Andy's Avatar
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    Quote Originally Posted by CafeLotta View Post
    Is this original Behmor temperature probe location shown earlier in this thread still the recommended placement?
    Yep, it's not necessarily the best placement but everyone putting it in the same place means that you have some comparison to other Behmor users and it's also far away from the element loop in the left side (230V)

    25mm v 100mm probe? Any major differences in use?
    Both work the same, the 25mm only just protrudes inside, the 100mm is probably better as it will act less like a heatsink.

    Is single probe, single heatsnob the best set-up for the Behmor?
    Up to you. Most use 1, some also do the basket mod and log temperature in the bean mass (which is trickier)

    Just thinking it might be time to take it up a notch.
    It's just data, some people love it, some people go insane trying to follow a previous profile exactly. I don't think it's needed for the Behmor as you can keep a log of what you did to replicate a roast but some people swear by it.

  47. #47
    Senior Member CafeLotta's Avatar
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    Appreciate the reply and info provided. If 2 HeatSnobs are used, do they just get plugged in to separate USB ports on a laptop to record at the same time?
    Last edited by CafeLotta; 6th May 2019 at 07:11 PM. Reason: Drifted off-topic

  48. #48
    CoffeeSnobs Owner Andy's Avatar
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    Each HeatSnob plugs into a USB port and you can run up to 9 if you really wanted to (most I've seen used was 4 at once, I use 2 on my commercial roaster)

    Using Behmor Plus manual mode you could manual P5 till first crack then P3 till ready to cool to have your own repeatable profile (way better than the auto profiles in the roaster). No need for a HeatSnob if you are doing that. It all comes down to how you roast and how much you think you need to know to get a repeatable roast.

  49. #49
    Senior Member CafeLotta's Avatar
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    Quote Originally Posted by Andy View Post
    Using Behmor Plus manual mode you could manual P5 till first crack then P3 till ready to cool to have your own repeatable profile (way better than the auto profiles in the roaster). No need for a HeatSnob if you are doing that. It all comes down to how you roast and how much you think you need to know to get a repeatable roast.
    I'll give that a try. On a fresh look, there's actually some mention of that in the Behmor 1600 Plus Control Panel Features document under "Manual Mode". I missed that part as I referenced my original manual re: P5 characteristics. Having replaced the front panel with the "Plus" version it makes sense. No harm done as I tend to hover over the last part of the roast.

    In case anyone else needs the latest reference document for the "Plus" version features, its available from the Behmor site -
    https://behmor.com/knowledge-base/be...shutoff-err-7/

    I'll give it a good read through in case I've missed something else. (P.S. The Behmor 1600 Plus Control Panel Features document on the Behmor site has been updated since the one I printed and laminated a while back.)

    P.S. Just went back and had a look at the graphs in the original manual and roasting at full power by using P5 manual mode then dropping power with P3 to 1/2 power at First Crack looks very similar to what the P2 program does?

    The graph for the original P5 program seems to show a 3 stage rise starting with 70% power for 1st 30-35% of program duration then increasing to 80% power and holding until reaching 60-65% program time duration before increasing to 100% for the final part of the program. This last part is where I went into manual mode at First Crack to avoid scorching. I can see how an unattended roast with some beans at this final stage of the roast might runaway and even possibly ignite.
    Last edited by CafeLotta; 6th May 2019 at 06:30 PM. Reason: Added P.S.

  50. #50
    Senior Member simonsk8r's Avatar
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    Behmor Coffee Roaster
    Quote Originally Posted by CafeLotta View Post
    P.S. Just went back and had a look at the graphs in the original manual and roasting at full power by using P5 manual mode then dropping power with P3 to 1/2 power at First Crack looks very similar to what the P2 program does?
    Hey CL,

    P2 was my go to when I had only the original Behmor panel. But with that setting it sort of arbitrarily drops the power at a specific time in the roast, when you may not necessarily want it to!

    With going manual you can drop the heat bang on first crack or rolling first crack when it actually happens, rather than relying on the program (which drops power just at a certain % of the roast time, and as the timing of first crack can vary between beans it can be arbitrary what stage the beans are at when the heat drops).

    Manual mode is a massive improvement



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