Latest Posts

  1. Coffee Tasting At Sweet Maria's - Feb. 28th

    Coffee Tasting At Sweet Maria's - Feb. 28th

    Sign up and taste the difference between coffees roasted in different machines

    Read More
  2. Upcoming Class: Roasting With A Gene Cafe

    Upcoming Class: Roasting With A Gene Cafe

    Wanna learn more about the Gene machine?

    Read More
  3. Behind The Scenes: Sweet Maria's Roasted Coffee

    Behind The Scenes: Sweet Maria's Roasted Coffee

    Here's how we roast.

    Read More
  4. New Postcards. Quakers: Resistant to Roast

    New Postcards. Quakers: Resistant to Roast

    Our new postcards. Look for one in your next order.

    Read More
  5. FreshRoast Basics Class at Sweet Maria's

    FreshRoast Basics Class at Sweet Maria's

    Sign up for our FreshRoast Class

    Read More
  6. 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.

    Read More
  7. Six Under Six - July 2018

    Six Under Six - July 2018

    Six great coffees. All under six bucks.

    Read More
  8. 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.

    Read More
  9. Aillio Bullet R1 Support

    Aillio Bullet R1 Support

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

    Read More
  10. 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.

    Read More
  11. 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.

    Read More
  12. 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.

    Read More

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.