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Please help shoot my problem [silvia & eureka mignon]
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yumecow



註冊時間: 2010-08-13
文章: 15

發表發表於: 星期六 八月 14, 2010 12:09 am    文章主題: Please help shoot my problem [silvia & eureka mignon] 引言回覆

Dear Shing & Landy,

This is Kelvin, i always refer myself Mr Lai.
Thanks for all the friendly tips as always when coming up to your shop. The eureka mignon is sure a very good grinder that i bought from you. Specially thanks Landy for her confirmation on the bottom opening of my portafilter, they got really mad from my request on opening that big of a hole.

I have got a bag of beans sponsor by someone so that i can use it to do some test instead of drinking. Can you please help take a look on my video and tell me what i done wrong for each of them? (of course if possible)

first 4 tests base on below setting:
fine level - the test base on the fine level shing helped me marked down
weight - start from 16.5 to 18g
level of tamping - no idea at all, just tried to push it in and balance the surface as much as i can

16.5g
http://www.youtube.com/watch?v=KRqH2WuydfY
taste - bitter

17g
http://www.youtube.com/watch?v=5a5ECTFxSLo
taste - less bitter than 16.5g

17.5g
http://www.youtube.com/watch?v=L6M2iAWUe0M
taste - less bitter than 17g

18g

http://www.youtube.com/watch?v=AYm1LMhAvPk
taste - almost not bitter at all

last 2 tests base on below setting:
fine level - slightly finer than the original marked
weight - 18g
level of tamping - no idea at all, just tried to push it in and balance the surface as much as i can

1st trial
http://www.youtube.com/watch?v=QkLZC8oTB0A
taste - very bitter

2nd trial
http://www.youtube.com/watch?v=dfZdzExkZM4
taste - sour!?!??

I have no baseline to reference on, pretty please tell me what i did right and what i did wrong.

1 question though, how come sometimes water slip off from the edge when its brewing?

MANY THANKS in advance and welcome to anyone for comments
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neohk



註冊時間: 2006-09-03
文章: 1095

發表發表於: 星期六 八月 14, 2010 12:52 am    文章主題: 引言回覆

try coarser
but you better wait for shing's professional comments Cool
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dreammeow



註冊時間: 2010-06-11
文章: 71

發表發表於: 星期六 八月 14, 2010 1:36 am    文章主題: 引言回覆

Isnt the flow a bit too fast? I thought we should grind finer to make the flow slower and achieve the "melting chocolate" at the begining?
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neohk



註冊時間: 2006-09-03
文章: 1095

發表發表於: 星期六 八月 14, 2010 1:41 am    文章主題: 引言回覆

fast flow rate can be the result of channelling.
there are multiple dead spots at the beginning, that's why i suspect the grind is too fine.
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yumecow



註冊時間: 2010-08-13
文章: 15

發表發表於: 星期六 八月 14, 2010 2:35 pm    文章主題: 引言回覆

i am also basing on the concept from what dreameow said... i think i should go finer....
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dreammeow



註冊時間: 2010-06-11
文章: 71

發表發表於: 星期六 八月 14, 2010 9:20 pm    文章主題: 引言回覆

yumecow, I talked with neo and Shing this evening on ur scenario and we thought you might want to try pulling again with some fresh beans.
(since you have not mention abt the freshness of your beans, it maybe a problem as well)
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yumecow



註冊時間: 2010-08-13
文章: 15

發表發表於: 星期六 八月 14, 2010 9:48 pm    文章主題: 引言回覆

Dreammeow, I have no idea how fresh the beans are either. But I think it's around 1 to 2 month. But did I do things correctly?
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neohk



註冊時間: 2006-09-03
文章: 1095

發表發表於: 星期六 八月 14, 2010 9:59 pm    文章主題: 引言回覆

yumecow 寫到:
Dreammeow, I have no idea how fresh the beans are either. But I think it's around 1 to 2 month. But did I do things correctly?

1-2 month old beans are stale.
your shots are bound to gush
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yumecow



註冊時間: 2010-08-13
文章: 15

發表發表於: 星期六 八月 14, 2010 10:49 pm    文章主題: 引言回覆

Hi neo, that's just my guessing, maybe it's only a week. I had tried some really old beans today and I can see not much crema when brewing, so I don't think those beans are that bad from the amount of crema. But I think most importantly, I am not sure if I am on the right track, what do you think?

Thanks so much for answering, much appreciated!! Many thanks!!
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neohk



註冊時間: 2006-09-03
文章: 1095

發表發表於: 星期六 八月 14, 2010 11:53 pm    文章主題: 引言回覆

if i were you i would adjust the grind before adjusting the dosage.
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yumecow



註冊時間: 2010-08-13
文章: 15

發表發表於: 星期日 八月 15, 2010 12:02 am    文章主題: 引言回覆

thanks Neo, i will shoot a video with coarser grind on 18g then, i will then shoot another 3 videos on finer, fine (shing's marked), coarser on 18.5g. I remembered shing said silvia is 18-9g normally.
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Jacky904



註冊時間: 2010-07-08
文章: 117

發表發表於: 星期一 八月 16, 2010 4:37 pm    文章主題: 引言回覆

??????????, ???????????????????, ?????2mm???. ???????????/??, ??????200G???????????!

?SHING????????????????????, ???????????????
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yumecow



註冊時間: 2010-08-13
文章: 15

發表發表於: 星期一 八月 16, 2010 9:07 pm    文章主題: 引言回覆

hi Jacky, i actually don't have your problem, same bag of beans, always consistent if i use same weight and same coarse level. some mistake can easily be spotted. Thinking maybe ask them in person later this week when buying beans. Not sure if they are too busy to watch my videos.
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yumecow



註冊時間: 2010-08-13
文章: 15

發表發表於: 星期一 八月 16, 2010 11:01 pm    文章主題: 引言回覆

I have followed Neo's suggestion done 4 more tests as below:

18g - slightly coarser
http://www.youtube.com/watch?v=iZHw16MgfKY
taste - bitter

18.5g - sightly coarser
http://www.youtube.com/watch?v=soDsglAPQrw
taste - sour (again?!?)

18.5g - normal old marked
http://www.youtube.com/watch?v=9oP2W8AjfFs
taste - a lot less bitter

18.5g - sightly finer
http://www.youtube.com/watch?v=n-NzwnAkRvs
taste - bitter

Thanks for any comments
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neohk



註冊時間: 2006-09-03
文章: 1095

發表發表於: 星期一 八月 16, 2010 11:17 pm    文章主題: 引言回覆

avoid deadspots if you can
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