Drum roaster electric conversion - - Page 2

Discuss roast levels and profiles for espresso, equipment for roasting coffee.
baldheadracing
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#11: Post by baldheadracing »

11:11
8)
- bigger flat burr makes always better grinding result than smaller one - H. Lee

ira
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#12: Post by ira »

If you can find the sockets, This style light bulb comes in a lot of different wattages and mostly just put out heat. Our toaster has one one of them as a top element so I know it might work. Also, cheap and easy to come by.

https://www.amazon.com/CTKcom-500-Watt- ... B06XKPV32Z

Ira

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Chert (original poster)

#13: Post by Chert (original poster) » replying to ira »

Thanks for the suggestion, but I'm implementing a simpler electric range element 240v - more on that later,

But as to what type of element, Bars - but probably electrical, not halogen bulbs - are more similar to what I can find about Quest. commercial electric ones like the Deidrich look great from the outside see links, but I don't find where they chose to place the elements. I would like to see. The thread about HR-1 in use suggests the batch size may have to come down and response of course will be very different to gas.

[SOLD] Diedrich HR-1 Professional Sample Roaster


Roast on a Diedrich HR-1
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NicoNYC

#14: Post by NicoNYC »

The coiled resistance wire from your broiler reminds me a lot of what's inside of electric dryers. Usually found wrapped into a spiral or folded back on forth like below, and they're cheap, 50 bucks from home depot. Not sure if this is remotely helpful for what you have in mind.

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Chert (original poster)

#15: Post by Chert (original poster) » replying to NicoNYC »

I don't know if any drum manufactures use that type heater. I believe the Artisan company uses something similar to provide heat for their fluid bed systems.
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Chert (original poster)

#16: Post by Chert (original poster) »

The contest never got off the ground with only two entrants, but as promised here is the answer. I am the lucky winner since I get to keep my tasty Yemen Mocha Haraaz - Brazil Daterra Sweet Blue - Guatemala Atitlan honey process espresso blend.
SAS wrote:It never got there. :P
Sorry, but you were close.
baldheadracing wrote:11:11
8)
Is that answer deep? I know 11:11 is an album by Rodrigo y Gabriela fabulous guitar duo. But as a time of my very slow electric heat up, it is not correct.

The true answer from 19 C to 100 C is 19:26. The data is in the artisan tables, but the graph shows it well enough:




This particular hot plate may just lack enough wattage, but it's purely conductive really as the element is under a metal plate. Gas is nearly purely radiant and with airflow from a roaster, heat becomes convective. When I implement a bare electric stovetop 1500 watt element held 1-2 inches below the drum, we'll see how airflow can play a role to speed up the heating, of the roaster compared to this test failure.
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SAS
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#17: Post by SAS »

I was closest as this is like never to such a fine blend of beans. Just don't send me the coffee.
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Running on fumes.

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Boldjava
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#18: Post by Boldjava »

I did my first test heating with dainty maid pictured above.
I think you should have a naming contest for your "Dainty Maid." When I first read the thread this a.m., I immediately thought you were referring to your wife. Well, knowing you would never do that and the PC which HB advocates, I think the creation-mess on your bench should be renamed.

Battleaxe would be mine.

Carrie Nation, the original battle-ax for a brief history session. https://en.wikipedia.org/wiki/Battle-axe_(woman)

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Chert (original poster)

#19: Post by Chert (original poster) »

LOL.
SAS wrote:I was closest as this is like never to such a fine blend of beans. Just don't send me the coffee.
I said roastervheating. No coffee has
Boldjava wrote:I think you should have a naming contest for your "Dainty Maid." When I first read the thread this a.m., I immediately thought you were referring to your wife. Well, knowing you would never do that and the PC which HB advocates, I think the creation-mess on your bench should be renamed.

Battleaxe would be mine.

Carrie Nation, the original battle-ax for a brief history session. https://en.wikipedia.org/wiki/Battle-axe_(woman)

<img>
been harmed in this exercise. These are tests while I still use gas to roast coffee. Hmmm .

I just call it huky but no offense to Mr Li, whose designs I have augmented. SJM called it Tinman.
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Marcelnl
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#20: Post by Marcelnl »

Just have a look at replacement heaters, the food/restaurant industry is using. There are plenty of types, as it's horses for courses.

You need one that gets glowing red hot and does not need to be waterproof. You want enough power to heat up like 500g of beans in a reasonable amount of time, I'd bet that 2000-2500W is where you should be but the power rating for any electric roaster probably offers some guidance.

websites like this, usually not the cheapest source though https://horecatiger.eu/nl-nl/shop/elekt ... /elementen
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