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Homeroasters - Home Roasting Coffee Community » ALL ABOUT ROASTERS » Popcorn Popper roasting

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Re-Wiring the Air Popper
scotchale	#1 Posted on 04/14/2011 9:30 PM
Newbie Posts: 13 Joined: May 11, 2009	I have not tried this yet, but has anyone ever rewired the heating element with another switch on an air popper? I would like to turn the heating element off, then let the blower continue to blow to quickly cool the beans...somewhat of a convenience feature. I haven't look at the circuit, but I suspect the heating element may act as a resister/regulator for the voltage to the blower motor? Hopefully, this won't be the case, but I will not know until I "gut it" first and examine how its wired up. Scotchale


greencardigan	#2 Posted on 04/14/2011 10:55 PM
1 1/2 Pounder Posts: 1162 Joined: November 21, 2010	Quote scotchale wrote: I suspect the heating element may act as a resister/regulator for the voltage to the blower motor? Hopefully, this won't be the case, but I will not know until I "gut it" first and examine how its wired up. Most poppers are wired in this configuration. There are lots of modified/rewired poppers around.


seedlings	#3 Posted on 04/15/2011 8:33 AM
1 1/2 Pounder Posts: 4226 Joined: June 27, 2007	Yes. I did the exact same thing in my first PII. Also helps to extend roast time because you can switch the heat on-off-on during the drying phase (don't switch it off once the beans reach about 300F, though). I believe, though, I only switched the main heat element and left the smaller 'voltage dropping' element that feeds the fan, so it doesn't cool quite as fast as you might think. CHAD Roaster: CoffeeAir II 2# DIY air roaster Grinder: Vintage Grindmaster 500 Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover


johntruax	#4 Posted on 04/15/2011 2:25 PM
Newbie Posts: 15 Joined: December 10, 2010	Here is a site I found to be helpful. You need to buy some stuff and do some surgery on the unit but is will split the fan from the heating elements completely. I went one step further and have a switch on the secondary (resistor?) element as well. http://www.engadg...e-roaster/ John Edited by seedlings on 04/15/2011 3:36 PM


seedlings	#5 Posted on 04/15/2011 3:47 PM
1 1/2 Pounder Posts: 4226 Joined: June 27, 2007	Nice. Do you have pictures of your popper setup and controls? CHAD Roaster: CoffeeAir II 2# DIY air roaster Grinder: Vintage Grindmaster 500 Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover


bvwelch	#6 Posted on 04/15/2011 7:55 PM
1 1/2 Pounder Posts: 1064 Joined: December 27, 2007	Quote johntruax wrote: Here is a site I found to be helpful. You need to buy some stuff and do some surgery on the unit but is will split the fan from the heating elements completely. I went one step further and have a switch on the secondary (resistor?) element as well. http://www.engadg...e-roaster/ John Ah yes, that article was where I first stumbled onto homeroasting, and Wallgreens had some air poppers on sale for $7. Thanks for the reminder.


johntruax	#7 Posted on 04/19/2011 11:56 AM
Newbie Posts: 15 Joined: December 10, 2010	Hi Chad... I guess your talking to me about posting pictures of a setup? I'll go take some pics right now but how would I post them?? Also... my setup isn't pretty! It works though and gives me some control of the roasting process. When I first started I could go from green to Vienna in about 3 1/2 minutes. Now I can stretch the times out to 12 minutes or more. Big difference in results. It may have been you who gave the tip of 4 - 4 - and 4 ... If so BIG Thanks from me. ( four minutes to 300 degrees, four minutes to 400 degrees, and four minutes to 440 degrees / or to finish.) John


johntruax	#8 Posted on 04/19/2011 1:22 PM
Newbie Posts: 15 Joined: December 10, 2010	Here's a test picture. johntruax attached the following image: Edited by johntruax on 04/19/2011 3:57 PM


meshmasher	#9 Posted on 01/07/2012 10:01 PM
Newbie Posts: 4 Joined: December 31, 2011	I too came across the engadget article and tried my hand at modding. Due to a wiring mishap i burned out my primary heating coil in my popper. Does anyone know what gauge/ohm/wattage of nichrome would be best to replace this with? i have found many articles on here talking about nichrome but non in regards to popcorn popper replacement wire.

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