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Peter
註冊時間: 2011-02-18 文章: 243
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發表於: 星期五 七月 22, 2011 1:16 am 文章主題: |
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Alex, ???????, ?????Delta-BT graph???啲
??Batch????delta-bt????, ????啲??
Panama Elida Natural Process City 150g
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alexfan
註冊時間: 2008-09-18 文章: 266
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發表於: 星期五 七月 22, 2011 11:51 am 文章主題: |
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Seem quite well after 160C.
The delta-BT during the drying phase is higher than the delta-BT after the BT reached 160C. You may drop the power after the "charge" a bit to "improve" the straight line.
One thing I cannot understand is the "ROR" curve, is it same as delta-BT/ET curve? The delta-BT reading is around 8-12C, how come ROR is in range of 30-40? |
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Peter
註冊時間: 2011-02-18 文章: 243
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發表於: 星期五 七月 22, 2011 12:22 pm 文章主題: |
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alexfan 寫到: | Seem quite well after 160C.
The delta-BT during the drying phase is higher than the delta-BT after the BT reached 160C. You may drop the power after the "charge" a bit to "improve" the straight line.
One thing I cannot understand is the "ROR" curve, is it same as delta-BT/ET curve? The delta-BT reading is around 8-12C, how come ROR is in range of 30-40? |
RoR (Rate of Rise) of BT = Delta-BT
My ET probe is measuring the air temperature entering the inside of drum. It refers to the heat that can be conducted to the beans by air. At the same time, the beans also physically contact the hot drum surface, that means there is another supply of heat by conduction (and this is not directly reflected in the chart but somewhat reflected in ET and input power). |
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alexfan
註冊時間: 2008-09-18 文章: 266
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發表於: 星期一 七月 25, 2011 11:50 pm 文章主題: |
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How does it tastes?
I did a similar roast yesterday and will try tomorrow.
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Peter
註冊時間: 2011-02-18 文章: 243
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發表於: 星期二 七月 26, 2011 12:16 am 文章主題: |
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alexfan 寫到: | How does it tastes?
I did a similar roast yesterday and will try tomorrow.
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??????Roast????, ?????????????, ????????berry?, ?????, ??????????啲??, ??????cupping???course??..
??PT rate?Elida Natural Process (???啲?estate reserve, ??natural process)??93, ?coffee review??95, ???????batch???batch, ??????, ?????啲 90+ Nekisse?????
????, ???Delta-BT??????, OVERALL?BT???, ???????PID?????? ???????~ ?啲??????, ???????????? |
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alexfan
註冊時間: 2008-09-18 文章: 266
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發表於: 星期三 七月 27, 2011 8:43 am 文章主題: |
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I found it very bright with green apple and citrus taste, the aroma is very pleasant and elagent.
Peter 寫到: | alexfan 寫到: | How does it tastes?
I did a similar roast yesterday and will try tomorrow.
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??????Roast????, ?????????????, ????????berry?, ?????, ??????????啲??, ??????cupping???course??..
??PT rate?Elida Natural Process (???啲?estate reserve, ??natural process)??93, ?coffee review??95, ???????batch???batch, ??????, ?????啲 90+ Nekisse?????
????, ???Delta-BT??????, OVERALL?BT???, ???????PID?????? ???????~ ?啲??????, ???????????? |
I found it very bright with green apple and citrus taste, the aroma is very pleasant and elegant the body is average and aftertaste is long. If comparing side by side, my preference is still Ethiopian coffee.
"???Delta-BT??????" yes, this batch is 150g, but I use similar manual profile of my past few "straight-line" roasts with batch size of 200g therefore the rate of is higher in the middle of the FC which is not desirable. |
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kkcheung
註冊時間: 2011-03-17 文章: 12
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發表於: 星期三 七月 27, 2011 10:01 am 文章主題: |
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Do they provide modification to 220V? I am not sure if step down transformer can give enough power. |
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Peter
註冊時間: 2011-02-18 文章: 243
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發表於: 星期三 七月 27, 2011 1:48 pm 文章主題: |
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kkcheung 寫到: | Do they provide modification to 220V? I am not sure if step down transformer can give enough power. |
????220v???, ???/??/?????110v???? |
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Peter
註冊時間: 2011-02-18 文章: 243
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發表於: 星期四 七月 28, 2011 2:08 am 文章主題: |
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Kenya Nyeri AA Kangocho Coop 150g FC (????Windows??disable咗?com port, 啲?????)
Ethiopia Sidamo Natural Guji Coop City+
????????, ????????(??)???, ??"???"???????? |
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bigtrumpet
註冊時間: 2010-05-19 文章: 300
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發表於: 星期五 七月 29, 2011 4:30 pm 文章主題: |
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引言回覆: | ????????, ????????(??)???, ??"???"???????? | ???????shing gor ????... |
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alexfan
註冊時間: 2008-09-18 文章: 266
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發表於: 星期六 七月 30, 2011 8:02 am 文章主題: |
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Even the result of straight-line roasting may not be perfect and as expected. It is a good training and exercise for controlling your roaster. I think it just a like doing "copybook" exercise to children. It may be also interesting to imitate other curve.
Here are two more straight-line practices:
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Peter
註冊時間: 2011-02-18 文章: 243
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發表於: 星期六 七月 30, 2011 11:38 am 文章主題: |
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?????????, ??? ?????
???????????A?? |
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alexfan
註冊時間: 2008-09-18 文章: 266
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發表於: 星期六 七月 30, 2011 8:08 pm 文章主題: |
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Peter 寫到: | ?????????, ??? ?????
???????????A?? |
It is not a good bean Nicaragua "elephant" bean. It was roasted last night, so tomorrow may be better time to try.
I am not using (A), I am using PID to control the MET, I set MET to 270 before charge and set it to 230C at charge, add 10C in every min. (200g) |
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Peter
註冊時間: 2011-02-18 文章: 243
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發表於: 星期二 八月 02, 2011 2:15 am 文章主題: |
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Realtime monitoring of roasting parameters and trends:
TC4 and its home:
Pending to install a SSR and a switch to M3 and will connect with TC4 later.
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alexfan
註冊時間: 2008-09-18 文章: 266
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發表於: 星期二 八月 02, 2011 9:35 pm 文章主題: |
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nice photo |
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