HomeRoast Digest


Topic: turbo crazy questions (3 msgs / 87 lines)
1) From: petzul
Now that I have an assortment of glass top turbo ovens, and some plastic 
ones I have started to notice some differences in performance.
My latest GG look alike arrived yesterday, I had won it on ebay just 
before I found 2 others 'like it' in thrift stores.
Anyway, the new one looks about the same, but when I tried it with a 
thermocouple inside to measure the temps the differential was 60 degrees!
This is the worst of them.
 I set it so it heated up to 470, then the thermostat clicked it off and 
it cooled down to 410 before it turned on again. I let it cycle like 
this a few times, and it pretty much holds the temp within 60 degrees.
Has anyone else monitored  theirs?
The best one I have holds within 10 degrees. I think that one is usable, 
but I wonder if  others are roasting with units that have huge 
temperature swings.
My immediate reaction is to bypass the thermostat and control the heater 
with a Variac.
Thanks for your help
PeterZ

2) From: Obrien, Haskell W.
If you have too many, I'm in the market.

3) From: Gary Townsend
Pete, one way around this without resorting to cutting drilling and
splicing the GG, is to start at say 350F for X minutes, and increase
the temp every 2 minutes until your roast level is satisfactory.
I start off at 350F for 5 minutes, then increase temp 25F every 2 - 3
minutes, I started doing this to ensure a more even, unburned roast
with bigger batches of (over 12 oz) beans. I still do it that way with
the smaller roasts of  9- 12 oz.
Or you can PID one for me and teach me how to PID my own...


HomeRoast Digest