• • CREATES $168+/HOUR

Photo by Blk City Coffee Roasters in Chino, CA

1 Kilogram Coffee Roaster, MCR-1

$8,400.00 USD Sale Save

The MCR-1 is designed as a high-quality production system for small coffee roasteries worldwide. Featuring the same monolithic weldment plate steel chassis and drum construction as our largest production roasters, this 1 kilogram capacity coffee roaster is a great solution to the aspiring professional roaster looking for a solid foundation from which to launch a coffee roasting business.

This model is RoastPATH® connectable with an integrated USB port that passes BT, ET, and DT thermocouple readings along with input changes in fan speed and resultant digital drum pressure. The roaster is equipped with variable drum speed for optimal roasting from batch sizes from 200 to 1200+ grams. Control on this machine is via hand adjustments of the gas input and power input for the fan and drum speed.

The MCR-1 features a thermally isolated cooling tray and high output cooling tray fan that cools coffee from 2nd crack in as little as 4 minutes.

The MCR-1 is available in an NSF certified configuration.

  • Roaster with integrated cooling tray
  • Stand-alone chaff collector
  • Manual fuel, fan & drum speed control  
  • USB connection
  • Thermocouples measuring BT, ET, IT, and DT
  • Digital drum pressure gauge
  • Safety cooling tray cover
  • Pre-delivery support from our design team including space planning review, venting specification & project advice
  • Set-up call: 1-on-1 video call with our Support Team to review your installation before passing you on to a 1-on-1 video call with our Roastery Team to complete your first seasoning roast
  • Warranty

  • Choose from three optional layouts using our Quick-Connect kits to arrange components and exhuast -or- request a custom layout
  • Optional UL® NSF (National Food Safety) package.

Next available: Available in July - reserve today!

Build & quote Limited Time - 0% Financing Available*

Arrives in one crate
Roaster crate: 46″ x 40″ x 40″, 450 pounds

Request a quote to see costs to your location.

This equipment is covered by Mill City Roasters' warranty.

Photo by Blk City Coffee Roasters in Chino, CA



Roasting 4 full batches an hour on an MCR-1 creates over 7 pounds of roasted coffee every hour. This yield is enough roasted coffee to fill more than 9 12-ounce bags. With a retail value of $18 per 12-ounce bag, you can create $169 of retail coffee per hour.

Want to see how your business expenses stack up against that income? Use our Roaster Income Calculator to use your real-life expenses and find a roaster capacity that works for your business plan.

Roaster Income Calculator


Precision Variable Control

Mill City Roasters was the first in the industry to offer as a standard feature variable fuel, fan, and drum control (we couldn't believe it either) but we've taken it a step further by refining that control for the operator.

Rapid Return Between Batch Protocol

Consistency in your roasting can only be achieved with stability in your roasting machinery. Automatic between batch protocol is standard on all MCR coffee roasters from the MCR-1 and up.


Certified machinery is more easily insurable, installable and our coffee roasters are backed by an experienced team to help advocate on your behalf with installers, contractors and permitting officials.


  • Monolithic, low carbon steel weldment – the heaviest constructed roasters in their class.
  • Fully gusseted for dimensional strength and stability.
  • Fully coated to prevent corrosion.
  • Integrated double-walled roast compartment is heavily insulated which further converts the chassis into a thermal battery – storing heat, rather than wasting it.
  • Materials in both the chassis and the roast compartment absorb heat more efficiently and release heat more consistently for increased stability of temperatures during profiling.
  • Trapping heat = trapping noise. Ambient drum noise is limited to a whisper quiet 60 decibels making it easier to hear those early outliers before first crack.


  • Double-wall, stainless steel drums standard on every model. The heaviest, most-efficient drum design in the industry.
  • Construction accuracy is machine trued to within +/- .025”.
  • 3mm air gap between inner and outer drum diffuses heat more evenly throughout inner drum.
  • Diffused heat at inner wall eliminates conductive roast defect, even at higher inlet temperatures.
  • Dramatically increased thermal efficiency by storing & using heat, rather than quickly releasing.
  • “Bomb proof” construction prevents warping due to operator error.
  • Every model equipped with quick response, variable drum speed allowing the operator to achieve ideal bean loft and conductive vs. convective ratio. Result is the flexibility to profile batches from 20%-120% of listed drum capacity on most models.
  • Advanced drum gap adjustment mechanism is standard on all models two kilogram capacity or greater, making adjustments easier and more precise.


  • Custom-designed, CSA® Design Certified low loss gas train designed by Mill City Roasters and used exclusively in our roaster line-up.
  • Custom burners designed specifically for coffee roasting.
  • Burner layout is specific to each model to achieve optimal burner-to-drum relationship.
  • Easy access, external shut-off valves on every roaster.
  • Built-in temperature limiters to allow for safe operation.
  • Built-in safety shut-off on pilot valve.
  • Easy on-site conversion from LP to natural gas.
  • High precision CV needle valves.
  • Precision analog gas gauge.

Air & Exhaust

  • Power-vented dual exhaust system standard on every model with fan placement designed to allow for easy cleaning and maintenance.
  • Roaster exhaust fan is high pressure, high output 3-phase VFD speed controlled with linear response curve for more predictable and more precise airflow control and roast profiles repeatability.
  • Cooling tray exhaust fan is a dedicated, high-pressure fan providing rapid cooling to stop roast progression once batch is dropped in cooling tray. Dual exhaust system allow for simultaneous roasting and cooling, reducing back-to-back batch times and increasing production to 4+ batches per hour.
  • All machines include face-mounted digital drum pressure gauge.
  • All models equipped with dedicated, off-board chaff filtering collectors with easy access doors to aid in frequent clearing of chaff and completion of safety checks.
  • Optional quick-release venting kits available for every model.
  • Fully specified requirements for venting to termination including layout and cap recommendations.


  • CSA® Design Certified CSA 1.8 for US and Canada, IEC, CE, ROHS.
  • CSA/UL certified Honeywell automatic ignition controller
  • All UL/CSA certified Delta PLCs and VFDs.
  • CSA/UL certified motors, relays, switches, and wiring.
  • Optional UL® NSF Certification available on every model.
  • Entire contact path of roaster (hopper, loading chute, faceplate, trier, drum, discharge gate, discharge chute, cooling tray cover, cooling tray floor, stirring/mixing arms, cooling tray gate, cooling tray latch, cooling tray gate) all custom fabricated with certified food grade stainless.
  • Teflon cooling tray wipers.
  • Heavy duty 5mm x 44mm Borosilicate sight glass.
  • Food service safe LED light.
  • Food safe resin-impregnated trier handle.

Install & Maintain

  • Integrated chaff collector.
  • Removable hoppers on all models.
  • Quick-Connect Kits available to quickly connect components and arrange exhaust for routing to termination outdoors.
  • Warranty

Planning & Installation

Layout A

Base layout with roaster connected to chaff collector via a short disconnect. This layout requires owner to install two exhaust lines to termination.

Assembled size
(w x d)
2'-10” x 4'-6”
(0.87m x 1.38m)
Space required
(w x d)
7'-4” x 9'-1”
(2.23m x 2.75m)
Additional costYes

Learn more >

Layout S (Separate exhaust lines)

Layout connects roaster to chaff collector and provides disconnects at exhaust ports of both the chaff collector and cooling tray fan. Ideal for spaces with thru-wall terminations. This layout requires owner to install two exhaust lines to termination.

Assembled size
(w x d)
2'-10” x 4'-6”
(0.87m x 1.38m)
Space required
(w x d)
7'-4” x 9'-1”
(2.24m x 2.75m)
Additional costYes

Learn more >

Layout G (Ganged exhaust lines)

Layout gangs dual exhausts into to one connection point above the chaff collector. Only usable in spaces with straight up, thru-roof terminations. This layout allows owner to install one exhaust line to termination.

Assembled size
(w x d)
2'-10” x 4'-6”
(0.87m x 1.38m)
Space required
(w x d)
7'-4” x 9'-1”
(2.24m x 2.75m)
Additional costYes

Learn more >


Operates on LP gas or natural gas. Requires commercial gas pressure via 1/2" NPT connection. See installation manual for detailed pressure requirements.

Burners arrive configured for LP gas but can be converted for natural gas using our easy, on-site conversion kit.

We can also help sourcing the correct gas regulator for your installation and talk your installer through any questions they have regarding gas pressure.


Requires a dedicated single phase circuit, 220-230V, 15A, 50-60Hz.

Unit arrives with a power cord measuring 3 feet (1 meters) terminated with a NEMA 6-15 plug.


Requires dedicated Category III, Positive Pressure exhaust line(s) to carry exhaust from roaster drum & cooling tray to termination outdoors.

See installation manual for maximum runs, minimum heat ratings and clearance-to-combustible requirements. Our Design Team offers free consult to help you make a plan for your building.

TAke a closer look

Customer Reviews

Based on 15 reviews
Adam Lawrence

This was my first coffee roaster ever. It has been a wonderful machine to learn on, scale up my coffee roastery and I now use it each week for sample roasting.

If you are thinking about buying a roaster it is in my opinion the best option to get started! Not only is the price very well for what you are getting, the roaster can get you to scale / growth and then still be useful for you as you grow your business.

In my case I was able to spend a year learning coffee roasting, testing, cupping, and just really getting to know the coffee and roasting process (highly recommend the Coffee Roasting 101 class offered by Mill City). I don't think any roastery will ever leave this process as greens change and sample roasting is a huge part of product / coffee offerings. While the roaster is no longer my production roaster as it is too small - it is actively used for samples and continues to be a huge part of our roastery.

Never had any issues as this machine is very well built, but I do highly recommend ordering a few extra parts to have on hand just in case and the roaster is pretty easy to take apart / clean as needed. Mill City has replacement parts and general maintenance products for sale on this website.

One pro tip that took me far too long to figure out. Is if you need to move the roaster within a building or even across state lines. I highly recommend just leaving it on the table and strapping it down. It is much easier to manage as it balances out the weight and makes it easier to lift / carry. The roaster is a bit awkward to try and carry / a bit trick to find hand placement to actually carry it.

Really appreciate Steve, Nick, and the staff at Mill City for all their support!

Will Strauss

I had been looking at the 1Kilo Roaster for maybe 4 years, before pulling the trigger. I couldn't be happier. I fired it up on May 28, 2018, and have 247 Roasts to date. It performs flawlessly every time. The Controls are amazing; Air, Heat and Drum Speed, what more could you want? Steve, Nick and Team are ALWAYS on hand to help you with a Question or Issue. They know these machines inside and out. Derek is a wealth of Roasting Knowledge, if you ever have any questions. Their Videos on YouTube are excellent for learning and answering any questions you may have. I started years ago with their very first videos and their progression has been amazing. I HIGHLY suggest taking their In-Person classes, in Minneapolis, too! I took Roasting 101 and 102 and it was extremely helpful. I learned how to use my Machine so much more, than I was at Home. If you're on the Fence on any size Roaster or taking an In-Person Class, here is a helpful push to Yes. Do it. You won't regret it.

Mike O.

We've had this roaster since 2016. Like all good roasters, this was doing its thing in the garage running on LP at first, then converted to NG through the help of MCR's friendly tech's. A few months later we moved it into our coffee shop and it's been seeing frequent duty since. Since we've started tracking more consistently less than a year ago, we've done well over 1,800 batches on this. If that's not enough to constitute commercial-grade, i don't know what does.

Ellis Graybill

This will be my final review for the TJ-067 propane fired roaster. It has been two years and 1000 lbs. plus since I put this roaster in service and it still gets a five star rating. I have not had a single mechanical or electrical failure with this machine. It just keeps going! If you make your notes as you gain experience, this roaster will produce consistent roasts of high quality. My most common roast weights are 1 kg but I frequently roast 1.5 kg which it handles with ease. I also roast the occasional 500 gm load. Early on after noticing some roast inconsistencies, I determined the issue was drum speed when all other settings were the same so I marked the drum speed knob in three places for each different roast weight, i.e., 0.5, 1, and 1.5 kg. The inconsistencies were not roast killers. I just was not satisfied and wanted better. Marking the drum speed knob made the difference and really allowed tighter control. If you are in the market this is a GREAT machine value! The service you with the purchase id five star as well!


I have been roasting on my 1kg (propane) for about 7 months now - I was going to write a review just after my first few roasts RAVING about the machine and my buying experience with Mill City, but I decided to wait until I had some significant roast time so that I could be more helpful to people who, like I was, looking for an excellently built, reasonably priced, well equipped machine to build a small coffee roasting business off of. I feel like now, after pumping several hundred pounds of coffee out of my TJ-067, I am able to give my review.

I started like many - roasting in a popcorn popper, then a Behmor 1600+, all the while gathering some steam with selling to family and friends and finding myself logging extensive hours on a home-roaster, reading blogs on how to trick it out to make the coffee better, and dreaming about what could be. I quickly felt defeated after spending months searching every known corner of the internet attempting to find a small, used roaster to get my start (including consideration of importing something from China) - there was nothing close to my location (Vancouver, BC, Canada) within my price range, and I soon found myself trying to justify to my wife spending $20k to "try" a coffee roasting business.

Enter Mill City Roasters - Steve responded to an add I put on Craigslist searching for a used roaster. We e-mailed back and forth regarding this NEW, 1kg machine, LP or Natural gas, well under $10k (including shipping). After lots of dialogue (including extensive phone calls), as well as me scouring the internet for anything comparable and coming up with nothing, and also searching for some damning review that proved this too good to be true, I decided to pull the trigger. **Particularly notable - Steve talked me OUT of spending more money on a larger roaster initially (I was concerned 1kg was still too small). Steve advised that the roaster had been excellently roasting 3lb charges no problem, and encouraged me not to over-invest in the machine initially, having more money free for greens - (honesty, integrity, professionalism are words that come to mind when thinking about my experience with Steve). He also advised me the whole way along about the best ways to get the roaster shipped and across the border (of which I had NO issues, just had to pay the duty).

After some delays (none of which were the fault of Mill City), I picked up my roaster in the states from the package receiver, drove it back across the border in the back of a pick-up truck (the crate its shipped in fit no problem), and had it set up in my garage within a few hours (its HEAVY, have some buds nearby). The set up instructions are clear and easy to follow. I seasoned the roaster that same night and was ready to get roasting. I did my first few roasts according to the Roasting 101 blog post, and I kid you not - the cupping quality of the these beans FAR surpassed my BEST roasts out of the Behmor (no offence intended, I still love that little guy!). I say this more to highlight the quality of this machine and technology on board - the gas/airflow/drum speed control allows for profiling to match professional quality roasts; the included Phigit allows for visual tracking, profiling, and reproduction; the chaff collection is efficient; the cooling ability it excellent.

I had some issue getting the Phigit working with my PC computer - readings were erratic and unhelpful. ENTER DAVE (I common refer to him as my roasting Jedi). Dave is a wealth of knowledge, and is so quick to respond to my questions I often feel guilty that he's laying in bed at night, he wakes up when his phone beeps with another question from Brandon, and he immediately answers it. But that is just the beginning - Dave and I have had several Skype roasting sessions - me in Vancouver, him in Minneapolis - where he mentored me on technical aspects of Artisan, roast technique/profiling, roast observation and feedback.... Dave has also reviewed Artisan graphs and given me feedback for future roasting. This process has exponentially grown my abilities and skills which has resulted in even better cuppings (although as previously stated, my first few roasts way surpassed my expectations). I would have never imagined that with the purchase of my roaster came quality guidance and education - a testament to the passion this company has, not only for excellent coffee, but also the support and advancement of small businesses. Dave has given me advise on the types of bags to use, for goodness sakes. Thank you, friend.

As stated, the roaster (with additional gas regulator) has no issue with larger, 3lb charges, and I am reaching 1st crack between 8-10 min consistently. Because of the demand and my limited time to roast, I was pounded out 3lb charges while also trying to learn to profile. Jedi Dave wisely advised me to pull back a bit while I mastered profiling with 1kg charges, then grow from there. Dave was right - although the machine is very capabl...


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