HGDB imitating drum-roaster profile
Posted on 11/24/2014 5:45 PM
Joined: August 31, 2014
I like to share my HGDB (heatgun dogbowl) temperature profile.
I used HGDB method for nearly 6 months, before I build my drum roaster. I tried several roasting profiles with the HGDB method and the profile I was using in my recent roasts was aiming to imitate a drum roaster profile.
My heatgun has an electronic temperature control which allows me to adjust the blowing air temperature in 10 degrees centigrade steps.
For my particular setup,
* dogbowl has a mass of 300gr
* roasting batch is 125gr or less
* heatgun power is 2000W(max)
* airflow of the heatgun is always at maximum setting
* ambient air temperature is between 20C and 25C
And the profile for the heatgun air temperature is:
* start at 400C
* check the color of the beans (check for yellow)
* usually yellow occurs at or before 2 minutes.
* drop temperature to 200C, keep for 3 minutes
* after 3 minutes, increase temperature 30C (i.e 230C @5minutes approximately)
* repeat same after 3 minutes (260C @8minutes approximately)
* at 11 minutes make it 290C and keep it at 290C until the end of the roast.
* my manual logs show that first crack occurs somewhere after 13:30 minutes and second crack around 16 minutes.
* I usually stop before second crack using the smell/smoke (not too much smoke)
* dump the beans and cool
This profile gives a high heat at the beginning, which is similar to a preheated drum. The tasting results were usually not as bright and complicated as a drum roaster profile but satisfactory.
|Jump to Forum:
|Advice on first my roaster (in UK)||MY FIRST ROASTER||11||03/01/2021 2:26 PM|
|1 lb. gas fired fluid bed roaster||Fluidbed Roaster||17||03/01/2021 1:15 PM|
|Heat gun bread machine roaster--how can I change container?||Heat Gun Roasting||4||03/01/2021 4:16 AM|
|Sandbox Smart R1 roaster||Other Roasters||7||02/14/2021 8:29 PM|
|Mystery new chinese drum roaster||Drum Roaster (Store Bought and Commercial)||3||02/12/2021 6:47 AM|