Latest Posts

  1. A Look at  Flores Manu Lalu as Espresso

    A Look at Flores Manu Lalu as Espresso

    Wet process Flores makes fantastic single origin espresso. Have a look at our cupping notes.

    Read More
  2. A Guide to Air Roasters

    A Guide to Air Roasters

    When blowing hot air gives you solid results

    Read More
  3. Behmor Espresso Roast Profile: Peru FTO Don Rigoberto

    Behmor Espresso Roast Profile: Peru FTO Don Rigoberto

    Read More
  4. How to Roast Coffee (circa 1850) !

    How to Roast Coffee (circa 1850) !

    When roasting at home was the primary method, and buying from a shop was your plan b !

    Read More
  5. The Golden Bean Bronze Medal Bullet Profile

    The Golden Bean Bronze Medal Bullet Profile

    Check out Julio's award winning profile.

    Read More
  6. Behmor Roast Profile: Burundi Kayanza Gahahe

    Behmor Roast Profile: Burundi Kayanza Gahahe

    Taking the "light and bright" approach to roasting Burundi Gahahe on the Behmor 1600+

    Read More
  7. Roasting Different Batch Sizes of Burundi on the Behmor 1600+

    Roasting Different Batch Sizes of Burundi on the Behmor 1600+

    What happens when you roast a coffee to the same roast level but at different rates of development?

    Read More
  8. Behmor Roast Profile: Burundi Kayanza Dusangirijambo Coop

    Behmor Roast Profile: Burundi Kayanza Dusangirijambo Coop

    Read More
  9. Live Stream: Intro to Home Roasting

    Live Stream: Intro to Home Roasting

    Roasting with an electric popcorn popper is easy! Watch our online, interactive demo on 9/6 and we'll show you how.

    Read More
  10. Roasting Flores Gunung Gedha on a Popcorn Popper and Quest M3s

    Roasting Flores Gunung Gedha on a Popcorn Popper and Quest M3s

    Read More
  11. Coffee Roasting Demo at The Berkeley Public Library

    Coffee Roasting Demo at The Berkeley Public Library

    Read More
  12. Coffee Roasting Basics: Nerd Nite Silicon Valley 6/25

    Coffee Roasting Basics: Nerd Nite Silicon Valley 6/25

    Read More

Video: Larry Cotton's Sifter Coffee Roaster

Video: Larry Cotton's Sifter Coffee Roaster
Apr. 9, 2019

Once in a while Sweet Maria's customer Larry Cotton blows our minds by sending us photos or a video of a new homemade coffee roaster creation made from basic parts and not-so-basic engineering. Here's his latest.

About 1.5 cups of green coffee is loaded into a modified flour sifter by an auger system fed by a hopper. Larry had replaced the wire stirrers in the sifter with paddles in order to give the beans better agitation. The heat source is a vertically mounted Harbor Freight heat gun (about $9) pointed up through the bottom of the sifter. The mechanism that moves the roasted coffee to the cooling tray is built with a rack and pinion taken from a camera tripod. As the batch is cooling, the next batch can start the roast process. Each batch takes about 10-15 minutes. Oh, and the music...Larry made that too.

Here's the video.

Questions? Contact the maker himself at [email protected]