Ok well here are the details of my attempts to night.
1st batch
1/2 cup Oven set at 200C on dial.
5 mins - oven temp was 134C
9 mins - oven temp 140C
14 mins - still no first crack, turned oven dial to 225.
16 mins - temp = 148C
17 mins - temp = 152C
17:30 mins - turned over up to full 250C
18:20 mins - 1st crack, 1 bean
18:42 mins - rolling crack temp = 167C
19:30 mins - temp = 173C dial turned back to 225C
20:30 mins - heard more cracks dial turned down to 200C. temp = 162C
21:30 mins - more cracks not sure if still 1st or second crack but beans were black so pulled them out.
Here is a photo

2nd batch
75 grams (just under 1/2 a cup). Oven set at 225C.
2 min - temp=133C
6 min - temp=160C
10 min - temp=160C, 1st crack, 1 bean.
11:30 min - rolling crack, dropped oven dial to 200C
Pulled around 14 mins, didnt hear second crack

3rd batch
70 grams Oven set at 200C
2 mins - temp=99C
5 mins - temp=132C, set dial to 225C
8 mins - temp=156C
9 mins - temp=160C
9:48 mins - 1 crack
12:20 mins - 2 more cracks
14:30 mins- few more cracks, could be considered rolling crack
15:40 mins - drop oven setting dial to 200C
17:30 mins - temp=143C
19 mins - Pulled beans didn't hear a second crack at all.

So from what I can tell out of this is that I need to have my oven inside temp at around 160C before I am going to get 1st crack. Also that the 3rd attempt was probably the best one but I should maybe crack it to 250C after 5 mins and then drop it back to 225C after 1st crack. What are your thoughts??
1st batch
1/2 cup Oven set at 200C on dial.
5 mins - oven temp was 134C
9 mins - oven temp 140C
14 mins - still no first crack, turned oven dial to 225.
16 mins - temp = 148C
17 mins - temp = 152C
17:30 mins - turned over up to full 250C
18:20 mins - 1st crack, 1 bean
18:42 mins - rolling crack temp = 167C
19:30 mins - temp = 173C dial turned back to 225C
20:30 mins - heard more cracks dial turned down to 200C. temp = 162C
21:30 mins - more cracks not sure if still 1st or second crack but beans were black so pulled them out.
Here is a photo
2nd batch
75 grams (just under 1/2 a cup). Oven set at 225C.
2 min - temp=133C
6 min - temp=160C
10 min - temp=160C, 1st crack, 1 bean.
11:30 min - rolling crack, dropped oven dial to 200C
Pulled around 14 mins, didnt hear second crack
3rd batch
70 grams Oven set at 200C
2 mins - temp=99C
5 mins - temp=132C, set dial to 225C
8 mins - temp=156C
9 mins - temp=160C
9:48 mins - 1 crack
12:20 mins - 2 more cracks
14:30 mins- few more cracks, could be considered rolling crack
15:40 mins - drop oven setting dial to 200C
17:30 mins - temp=143C
19 mins - Pulled beans didn't hear a second crack at all.
So from what I can tell out of this is that I need to have my oven inside temp at around 160C before I am going to get 1st crack. Also that the 3rd attempt was probably the best one but I should maybe crack it to 250C after 5 mins and then drop it back to 225C after 1st crack. What are your thoughts??



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