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    Coffee Roastery Equipment, Commercial Coffee Roaster News, Roaster News

    Drum Roasters vs Fluid Bed

    Posted on February 17, 2023 at 3:05 pm by / 0
    Most people don’t know that I started out my coffee roaster career building fluid bed roasters of various sizes including one that recirculated heat. Despite my best efforts all were failures and I never achieved the professional roast quality I was interested in. In hindsight, I’d estimate that exactly half of my failure was directly… Read More
    Coffee Roastery Equipment, Commercial Coffee Roaster News, Designing for Coffee, Start, Scale, Sustain

    Hello, new capability…

    Posted on February 10, 2023 at 10:33 am by / 2 Comments
    Many of you know that we do a big chunk of our engineering here in Minneapolis.  Over the years, we have grown to be the most skilled, most professional, most experienced, and most capable manufacturer in this industry. We know how to build machines that reliably make money and we know exactly how to keep… Read More
    Coffee Roastery Equipment, Commercial Coffee Roaster News, Roaster News

    New Roaster Color (Experiment?)

    Posted on February 10, 2023 at 10:28 am by / 0
    As a design aesthetic, our roasters have always been a bit more Bauhaus where form very closely follows function. They are classically abstract, angular, and geometric, with little ornamentation. I choose this new color scheme mostly because, after thousands of utilitarian black bodied roasters, I simply wanted to experiment with a new set of contrasting… Read More
    Coffee Roastery Equipment, Commercial Coffee Roaster News

    Commercial Coffee Roasters: Used, Refurbished, & Trade-Ins.

    Posted on November 7, 2022 at 3:07 am by / 0
    ​​Most of you know that, beyond the occasional swapped out demo machine, we do not normally deal in used or refurbished coffee roasters. Our machines are proven to hold their value. For us however, reselling used coffee roasting machines sight unseen and then arranging local crating and transportation require steeply discounted prices to cover these… Read More
    Coffee Roastery Equipment, Commercial Coffee Roaster News, Roaster News, Roasting & Education, Start, Scale, Sustain

    How Does Toll Roasting Work?

    Posted on July 20, 2022 at 3:46 pm by / 0
    Mill City Roasters’ Production Facility In addition to selling roasters and hosting classes at our headquarters in Minneapolis, we also operate a full-scale production roastery. In that roastery, you’ll find four production-sized roasters, packaging equipment, industrial grinders, and green coffee storage. We are able to roast, pack, and ship over 5,000 lbs of coffee each… Read More
    Coffee Roastery Equipment, Roaster News

    Why does the weigh/fill machine need compressed air?

    Posted on June 27, 2022 at 2:27 pm by / 0
    I received a very good question from a prospective weigh/fill customer today about why our weigh/fill machine needs an air connection and others do not. This was my response: Strictly speaking, an air connection is not mandatory. If you have one though, you’ll fill bags about 30% faster. Roasting coffee isn’t necessarily all about speed,… Read More
    Coffee Roastery Equipment, Roaster News, Start, Scale, Sustain

    The “Perfect” Roaster?

    Posted on June 24, 2022 at 3:44 pm by / 0
    A funny thing happened the other day on Facebook Coffee Roasters Forum. Another numbskull posted that his company was engaged in the exercise of building the “perfect” roaster and asked people to chime in about what they thought their “dream roaster” would look like. I have several problems with this entire exercise. First, if your commercial… Read More
    Coffee Roastery Equipment

    Mill City Digital vs Manually Controlled Roasters?

    Posted on May 26, 2022 at 3:40 pm by / 0
    All Mill City Roasters have double walled drums, monolithic welded chassis, variable fan and drum speed, dedicated cooling fans, and integrated data logging. Drum pressure is a feedback loop for fan speed. Drum speed control allows an operator to tune the machine for better performance across a broad range of batch sizes. Our manually controlled… Read More
    Coffee Roastery Equipment, Roaster News

    Best Commercial Coffee Roaster: the myth of the “perfect” roaster.

    Posted on April 26, 2022 at 1:40 pm by / 0
    I’ve been hanging around commercial coffee for awhile and I don’t normally search the internet for the “best commercial coffee roaster”. Recently though. I’ve been inundated with spam and internet ads and breathless paid placement new product release articles and a proliferation of weaponized click bait sites. I can only imagine that the marketing departments… Read More
    Coffee Roastery Equipment, Commercial Coffee Roaster News, Roaster News, Start, Scale, Sustain

    BTU per pound? Scaling from a small to a large production coffee roaster?

    Posted on March 9, 2022 at 3:43 pm by / 0
    I received an email from a customer this morning with a good question about BTUs:   “I am seeking a roaster that can do somewhere in the range of 20-25 pound batches at 12 or so minutes. we are on an 8 pound roaster now and we can get 8pounds to FC at between 8-9min… Read More
    Coffee Roastery Equipment

    “Why is there a cover over the cooling tray?”

    Posted on February 4, 2022 at 9:56 am by / 0
    That’s a good question. We incorporate cooling tray covers because our cooling trays are very much higher performance than industry standard. They are designed to cool a full batch of coffee from second crack within 4 minutes and they are designed to accommodate 3 full batch sizes for blending roasted coffee. That means we use… Read More
    Coffee Roastery Equipment

    MCR 30kg vs Diedrich DR25 coffee roaster?

    Posted on January 19, 2022 at 5:08 pm by / 0
    I received an email today from a customer asking how our MCR 30kg compares to Diedrich DR25. Although I have a great deal of familiarity with the Diedrich’s IR and CR series roasters, I was unfamiliar enough with the DR model that I was forced to review Diedrich’s website and study the specs. This is… Read More
    Coffee Roastery Equipment, Commercial Coffee Roaster News, Roaster News, Start, Scale, Sustain

    Coffee Roasting: What matters the most?

    Posted on November 30, 2021 at 12:00 pm by / 0
    There is a lot of well meaning “advice” about coffee roasting online, but it’s seldom weighted in terms of the relative impact it makes on your coffee and your craft. We talk to owners about their coffee quality every day. This is a list of the 10 things I find myself talking about the most.… Read More
    Coffee Roastery Equipment

    RoastPATH : Roast Precision Reinvented.

    Posted on June 8, 2021 at 4:06 pm by / 2 Comments
    We’ve spent thousands of hours engineering 12 various sized roasting machines uniquely built to answer the demands of modern specialty coffee production. The result is that Mill City Roasters now produces the most powerful, heaviest built, most controllable, and most uniquely instrumented commercial coffee roasters in the broadest range of sizes ever built. While better… Read More
    Coffee Roastery Equipment, Roaster News, Start, Scale, Sustain

    Why Coffee Shops Should Roast In-House

    Posted on February 27, 2021 at 9:00 am by / 0
    Why should you roast your own coffee? Coffee consumers everywhere are demanding more and better coffee. Although the coffee business has become more competitive, in many markets quality coffee can still be surprisingly hard to find. Coffee is a story and one of the greatest benefits to roasting coffee in-house is simply to take charge… Read More
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