Instructables

Roast your own coffee with a popcorn popper

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Enjoy delicious coffee with beans that you've roasted all by yourself. All you need is the right kind of cheap popcorn popper and some raw beans. It's really easy and so totally worth it.

If you grind your own beans at home and look forward to that first hit of caffeine in the morning, then this is for you. With just a bit of effort you'll be enjoying it so much more.

Warning: doing this and getting good at it has the potential to turn you into a coffee snob who complains that coffee shops are burning their beans. Just keep it to yourself because few other people will care, OK?
 
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Step 1: What you need - the basics

Picture of What you need - the basics
The core element here is the air popcorn popper. Mine is the Toastess TCP-713, but there are many others that work as well. The key is to get one that has its air vents on the side of the main chamber and a solid bottom. There's more info about that here and here.

If you're willing to trek through some thrift stores you might be able to find one of these for $5 or so. Otherwise, it's not too bad to get a new one for under $30.

I got the raw beans from Sweet Maria's in Oakland. They offer lots of different beans for $6-$8 a pound. I'd recommend getting the sampler which can get you 8 pounds for $40 or $5 each.

The last part you'll need is a couple of metal bowls or, even better, colanders.These will be used to catch the chaff and cool off the beans.

Step 2: What you need - a little fancier

Picture of What you need - a little fancier
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If you want to have more of an insight into the process you can install a thermometer into the lid. Drill a hole into the top, insert a flattened tee nut, and insert the thermometer.

For the thermometer you'll want one that can go up to at least 450, but 500 would be even better.
mkambas9 months ago

excellent ible, oh fungus the great!

that's the way i roast my beans too. same popper as well. lately, however, i'm thinking of lining the plastic container's roof with foil (ripping thru slots with a knife) because it tends to melt over time. thanks again for your detailed work here!

Paperduck1 year ago
While I read about home roasting before, your instructable really sparked my interest and this morning I had my first cup of home roasted coffee! So, a tip of the hat to you Sir!
fungus amungus (author)  Paperduck1 year ago
Glad to hear it! This has long been on my to-do list so I totally understand.
bajablue1 year ago
Clever you!!!
fungus amungus (author)  bajablue1 year ago
Thanks, but not really. Was just trying to put together the basic info together in a clean way. Notice all the links to Sweet Maria's? Learned a lot from them.
That's what it's all about! Thanks for sharing!
kithso1 year ago
Cool beans! Er, yeah...
I love coffee, must drink 5 pots a day. I don't know if I can get raw beans around here though. Probably online.
Good 'ible.
fungus amungus (author)  kithso1 year ago
Try talking to a local roaster. If you drink 5 pots a day (!!!) then you can probably ask for a 20-lb bag. The more you ask for, the more likely you'll get it.
That's not 5 pots to myself; My wife drinks it too.
I don't believe there are any local roasters, unless stoked does their own beans.
Alas really. I'm sure I can find it on the net.