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Large Bubbles. Why?

 
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tnpatton



註冊時間: 2010-03-26
文章: 25

發表發表於: 星期二 十一月 23, 2010 11:21 am    文章主題: Large Bubbles. Why? 引言回覆

Does anyone have suggestions for preventing large bubbles / turbulence from appearing after the water rises into the upper chamber?
I get large bubbles forming about 50% of the time, and I notice that the brew tastes bad if coffee is brewed when these large bubbles are present.

Suggestions on other websites say that if such bubbles appear, it is best to adjust the filter to keep the bubbles from forming. If that fails, then start all over and make sure there are no leaks in the seal. I've done this, but I still get large bubbles.
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neohk



註冊時間: 2006-09-03
文章: 1095

發表發表於: 星期三 十一月 24, 2010 2:39 pm    文章主題: 引言回覆

u've bubbles right from the beginning?
2 types of bubbles: those from the rim of your metal part and those from the cloth surface and they uniformly distributed.
the former: misaligned cloth
the latter: the temp of the lower bulb is higher than the water temp.
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tnpatton



註冊時間: 2010-03-26
文章: 25

發表發表於: 星期四 十一月 25, 2010 1:23 pm    文章主題: 引言回覆

thanks, neo.

i have big bubbles form at the metal part. i tried to re-align the cloth many times, but it still does not stop the bubbles. Sad
very strange.
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vavi



註冊時間: 2009-03-09
文章: 82

發表發表於: 星期四 十一月 25, 2010 3:40 pm    文章主題: 引言回覆

can upload movie?
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tnpatton



註冊時間: 2010-03-26
文章: 25

發表發表於: 星期五 十一月 26, 2010 2:35 pm    文章主題: 引言回覆

good idea. i will post a video tomorrow.
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tnpatton



註冊時間: 2010-03-26
文章: 25

發表發表於: 星期六 十一月 27, 2010 10:38 am    文章主題: 引言回覆

I just posted a short video on youtube of what I'm experiencing with these bubbles.

http://www.youtube.com/watch?v=0afk1F_5RWw
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vavi



註冊時間: 2009-03-09
文章: 82

發表發表於: 星期二 十一月 30, 2010 12:00 pm    文章主題: 引言回覆

?????????????????

?????:

1) ????????????????????

2) ?????????80c ????????????????????
???????????? 88-95c???温????97c?????????????????温?????温?97????????????????
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tnpatton



註冊時間: 2010-03-26
文章: 25

發表發表於: 星期二 十一月 30, 2010 12:59 pm    文章主題: 引言回覆

Thank you, Vavi, for your help. I cannot read Chinese, but I will have my wife translate for me when I get home.

I used google translate, but it does not give a good translation.
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barca



註冊時間: 2010-12-08
文章: 105

發表發表於: 星期六 二月 26, 2011 10:18 pm    文章主題: 引言回覆

It is because the water in the bottom pot is way too hot. Try to pour 80 degrees at the beginning!
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seiyapicasso



註冊時間: 2006-03-14
文章: 2024
來自: ??

發表發表於: 星期四 三月 31, 2011 1:47 pm    文章主題: 引言回覆

yes, the water is too hot to make coffee, I saw your video, the thermometer is shows 97.x, FYI, I will set my thermometer to 86C then pull the upper pot in.

After the water all get into the upper pot, turn the fire with less power to make the water flow become stable.

Then you can put coffee in.
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