Roasting coffee beans with a hot air popcorn popper is a simple do it yourself method. You’ll need a popper with side vents, green coffee beans, and a few basic tools like a bowl and a colander. I found my popper on sale at a local thrift store, but you may have one stored away in the back of your kitchen cabinet. Preheat the popper, add about ½ cup of green coffee beans, and listen for the first crack (around 4-5 minutes) to gauge the roast level: light, medium, or dark. Cool the beans quickly in a colander, then let them de-gas for a day before storing in an airtight container. Remember to roast in a well-ventilated area (I roasted mine outside for safety sake), keep an eye on the process, and experiment to find your perfect roast.

Here’s a step-by-step guide on how I did it:

Materials Needed

1. Hot Air Popcorn Popper: Preferably one with side vents, not one with a mesh screen at the bottom.
2. Green Coffee Beans: Purchase from a specialty coffee supplier. I used Amazon and started with a small order. More information at the bottom of this post.
3. Large Bowl: To catch chaff and the roasted beans.
4. Wooden Spoon: For stirring the beans during and after roasting.
5. Colander or Sieve: For cooling the beans.
6. Timer: To monitor the roasting stages.
7. Glass Lantern Globe for viewing and keeping the beans inside the popper (Optional)

Step-by-Step Instructions

1. Setup:
   • Place the hot air popcorn popper on a stable, heat-resistant surface near an outlet.
   • Position the large bowl to catch the chaff (the papery skin that comes off the beans) and the roasted beans if they fly out.

2. Preheat the Popper:
   • Turn on the popcorn popper and let it run for about 30 seconds to preheat.
3. Add the Beans:
   • Measure out the green coffee beans. Typically, ½ cup of beans works well for most poppers.
   • Pour the beans into the popper’s chamber.

4. Roasting:
   • Start the timer as soon as you add the beans.
   • Stir the beans with the wooden spoon if needed to ensure even roasting.
   • Listen for the “first crack,” which sounds like popcorn popping. This usually happens around 4-5 minutes.
   • Decide on the roast level:
     • Light Roast: Stop shortly after the first crack.
     • Medium Roast: Continue until a few minutes after the first crack.
     • Dark Roast: Listen for the “second crack,” a quieter crackling sound. Stop shortly after this for a dark roast.

5. Cooling:
   • Once the desired roast is achieved, quickly pour the beans into the colander or sieve.
   • Stir the beans to cool them down rapidly and remove any remaining chaff.

6. Degassing and Storing:
   • Allow the beans to degas for at least 12-24 hours in a breathable container (like a brown paper bag).
   • After degassing, store the beans in an airtight container away from light and heat.

Tips

• Ventilation: Roasting coffee produces smoke, so do this in a well-ventilated area or under a kitchen exhaust fan.
• Experimentation: Different popcorn poppers and coffee beans can vary. Keep notes on times and temperatures to refine your process.
• Safety: Never leave the popper unattended while roasting, as the process can generate a lot of heat.

Using a hot air popcorn popper is an accessible way to start roasting your own coffee, allowing you to enjoy fresh, customized roasts at home. I did several batches and to me they were all wonderful and turned out great!

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3 Lb, Single Origin Unroasted Green Coffee Beans, Specialty Grade From Single Nicaraguan Estate, Direct Trade (Caturra Varietal)

$27.99

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07/04/2025 09:01 am GMT