Latest Posts

  1. Bullet R1 Roaster Meet Up

    Bullet R1 Roaster Meet Up

    Join us for a meet-up where we will discuss the very popular Aillio Bullet R1 coffee roaster.

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  2. Six Under Six - July 2018

    Six Under Six - July 2018

    Six great coffees. All under six bucks.

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  3. Video: A Cooler Way to Cool Your Behmor Roast

    Video: A Cooler Way to Cool Your Behmor Roast

    Cool your coffee faster by removing the drum.

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  4. Aillio Bullet R1 Support

    Aillio Bullet R1 Support

    Need a little help with your Bullet R1? We are here for you.

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  5. Intro to Home Roasting Class

    Intro to Home Roasting Class

    Sign up for this roasting basics class. It's going to be a lot of fun.

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  6. Sweet Maria's Featured on The Coffee Podcast

    Sweet Maria's Featured on The Coffee Podcast

    Listen in and share with a friend that needs a little motivation getting started with roasting on their own.

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  7. Hot Rod Home Coffee Roasters: The Spirit of Invention

    Hot Rod Home Coffee Roasters: The Spirit of Invention

    For some people who roast their own coffee, off-the-shelf home coffee roasting appliances don't cut it.

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  8. Air Popper Modifications -Adding a Thermometer

    Air Popper Modifications -Adding a Thermometer

    A thermometer can help you establish a more consistent roasting routine. Adding a thermometer to your air popper measures the temperature of the forced air heat flow after it has passed through the beans.

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  9. Gas Oven Roasting Method

    Gas Oven Roasting Method

    What You Need: A gas oven. A perforated pan, a vegetable steamer, or a stainless steel wire mesh collander.

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  10. How to make a Thermometer Clip

    How to make a Thermometer Clip

    Do you really need a thermometer clip? Well, not really, but if the dial face is moving around while you are cranking, it makes it hard to read.

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  11. Air Popper Modifications -Timing Roasts

    Air Popper Modifications -Timing Roasts

    When I started roasting with an air popper, I found that timing the roasts was difficult.

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  12. Another Home Roaster Takes the Leap

    Another Home Roaster Takes the Leap

    Sweet Maria's customer jumps into his own coffee business

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Jabez Burns 4 Barrel and 5 Barrel Sample Roasters

Jabez Burns 4 Barrel and 5 Barrel Sample Roasters

As inspiration for building home-made drum roasters or roasters from converted gas barbeque grills, I wanted to share some photos of the Jabez Burns sample roaster. These two models below are not mine, but belong to Royal Coffee, a broker near our shop (where I cup participate in cuppings sometimes). Also see our description of perforated metals.


Here are the 2 banks fo sample roasters side by side. You can see the sample triers to pull out coffee during the roast. This open front design is abslutely ideal for total access to the coffee durning the roast.

The 4 barrel roaster is newer and has air-through-the-drum -see next photo- We ahd just roasted a bunch of Kenya samples so there's a lot of chaff everywhere. (You really don't have to pull the chaff out of the drum while roasting -you can just separate it after - but we were being picky for the Kenya cupping).

Here you can see the the air manifold that pulls air through the drum, and how the drum barrel hinges forward to dump into the cooling tray

The drum is perforate metal with agitating fins. It has is a cylinder shape with a coned front end. In the rear it is mounted on the drive gear, but so the front can remain open it runs on a groove inside the front opening.

Here is the gear that drives the rear -this is the 5 barrel one because it lacks the air manifold

The gear is meshed into a worm-drive gear on a lateral rod

The lateral rod is driven by an electric motor at the base, with a long belt between the pulleys. This keeps the motor away from the heat.


The sample trays have a strong air flow pulling down through them and they cool the coffee very quickly. (Air flow cools coffee, not physical agitation).

Here you can see the burner, a very simple round flame like a gas stove, or like a Colman Camp stove that runs on white gas.