Sweet Maria’s guide to cleaning the roaster and the thermal sensor in your Aillio Bullet R1 coffee roasterA machine for roasting coffee. Or the person operating it! The basic requirements for a coffee roaster are a heating element that gets suitably hot and a mechanism for agitating the beans.: A mechanism for More
The Bullet R1 requires more frequent cleaning and careful maintenance compared to other home roasters. If you don’t care for your Bullet R1 properly, smoke can damage the internal electronic components that make your roaster tick. This is our recommended regimen for keeping your Bullet R1 in tiptop shape.
What to clean on the Bullet after 1 to 2 roast batches…
Vacuum chaffChaff is paper-like skin that comes off the coffee in the roasting process. Chaff from roasting is part of the innermost skin (the silverskin) of the coffee fruit that still cling to the beans after More from the following locations:
Clean the Cooling box (under the bowl)
Remove cooling filter and vacuum any chaff from the fan chamber
Clean Around drop door – look for any small beans that might be wedged between the drum and the drum out lining and remove them!
Chaff plug in rear of the machine
Cleaning after every 5-10 roast batches…
(or after 3 roasts, depending on roast level/batch size)
Remove back chaff basket
Remove the metal chaff filter and vacuum
Hold the filter up to a light source and look through it: Can light shine through the basket? If not, soak the basket in a solution of espressoA small coffee beverage, about 20 ml, prepared on an espresso machine where pressurized hot water extracted through compressed coffee.: In its most stripped-down, basic form, this is a working definition for espresso: A small More cleaner (Cafiza, Joe Glo, etc) for 10 minutes and gently scrub with a brush
If you are roasting commercially, we recommend purchasing additional chaff baskets – that way, you can swap baskets to continue roasting without needing to pause for cleaning.
Bullet Deep Cleaning after 20-25 batches…
Disassembly and Deep cleaning of rear chaff collector
Remove rubber gasket, brush off the chaff
Unscrew and remove the panel covering
Vacuum chaff from back and clean with a brush if needed
Transfer Tube Cleaning
Using a bottle brush, clean transfer tube
Brush from the front and from the rear
Vacuum any remaining chaff/residue from the front and the rear ends of the transfer tube
Rear Impeller Fan Cleaning
Clean the impeller fan by brushing and/or vacuuming any chaff/residue.
Is the impeller fan oily or coated in residue? If so, remove the fan for deeper cleaning.
Find the set screw and loosen using the #2 hex driver in the Aillio tool kit (5/64″ will also work) – do not remove it completely, as the screw is easy to lose. Just loosen it.
Using a fine metal brush, gently scrub and vacuum any chaff/residue
If need be, soak the fan in a solution of espresso cleaner for 10 minutes and gently scrub with a brush
Refer to our video for a detail explanation of impeller fan deep cleaning:
Cleaning the IBTS (Aillio Bullet V1.5 and V2) – Infrared Bean Temperature Sensor Module
How to keep the IBTS (Infrared Bean Temperature Sensor Module) Clean and working correctly.
We recommend cleaning the sensor every 25-40 roasts – darker roasts require more frequent cleaning. If you start to see some odd changes to your temperature readings, this is an indication that the IBTS lens needs cleaning
What you’ll need:
- Soft metal bristle brush, small-ish
- Cotton Swabs / Q-tips
- Rubbing alcohol – we use 70% here but 90% is good as well.
- Flashlight
Brush for cleaning the Aillio Bullet Coffee Roaster 
Ethyl Alchohol and cotton swabs for cleaning IBTS thermal sensor -Aillio Bullet Coffee Roaster
Remove back cover and place in front of the drop door to act as a stabilizer for the faceplate.
Unscrew the 5 front screws to remove the faceplate
Swivel open the faceplate and rest it on the back cover to keep the plate stable during cleaning
Locate the IBTS in the faceplate
Brush chaff and residue from the interior of the plate
Use a flashlight to check the sensor for any oily residue or chaff
Dip a Q-tip in rubbing alcohol and gently wipe away any oils from the sensor
You’re all done! Put it back together and keep roasting!
9 Responses
Hi. Thank you for your posted instructions and videos on cleaning the Aillio Roaster. I believe I have blown a fuse and want to replace it. The fuse is really tight in the clamps. I couldn’t find any information on removing/replacing the fuse. Could you tell me how to remove it?
Thank you.
Janelle
Hey Janelle,
So sorry to hear this!
Can you clarify what the issue is that’s pointing to a bad fuse, and which fuse you’re talking about? Does your Bullet power up, and if so, do you get an error code on the LED Display?
We will likely want to pass this along to our Julio, our in-house Bullet tech.
Feel free to email us directly at [email protected] and [email protected].
Thanks in advance!
Dan
cannot change celsius to Fahrenheit in roast time profiles. need help
Hi Tony, thankfully that should be an easy fix. Are you using PC or Mac? I use RT for Mac, but the solution should be the same.
*Open up Roast Time and find the little gear icon on the left side of the screen.
*Click on the gear icon to open up the Roast Time settings.
*When the settings panel opens up, select Roast Config to open up the RT configuration.
*The second option in Roast Config is where you can select either Celsius or Fahrenheit for your temperature unit of measurement in the interface.
Hopefully this does the trick. Let me know if you need further help setting up Roast Time!
Best,
Dan
Regarding cleaning the rear impeller it would be enormously helpful if we knew what sort of screwdriver to use to loosen the set screw.
Hi there George, thanks for pointing out the need to add the driver size! I’m doing that now.
The grub screw requires a #2 hex driver which is included in the tool kit. If you don’t have one, a 5/64″ should also do the trick.
Here’s a helpful video on changing the impeller fan. One thing to note is that not all of the fans have the little notch you’ll see in our video. Mine doesn’t, but I’m still able to access the grub screw straight on with my driver between the correct fan blades.
Let me know if you have any trouble!
Best,
Dan
Worked just fine! Thanks.
Hi-I am curious about the metal plate in the photo at the beginning of this maintenance schedule (vacuuming after 1or 2 roasts). It is just left of the bean-drop door.
It looks like some kind of bracket. Some modification you guys did perhaps?
By the way, thank you for these great videos you’ve posted about the bulllet. I have bullet #80 received in July 2016 and am still learning a lot about how to take care of it. All the best, Scott
Hey Scott!
Wow, #80! You’re a longtime Bullet user. It’s pretty amazing how even with such simple, manual control, there always seems to be something new to learn.
That metal bracket has very little function outside keeping the beans from ejecting out sideways when opening the front door. Haha. Our overbuilt response to a minor annoyance (but surprisingly effective 🙂 )
Glad you’re finding the videos useful.
Best,
Dan