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ranma
註冊時間: 2009-06-16
文章: 9
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 發表於: 星期三 六月 17, 2009 8:38 am 文章主題: ???tamper??? |
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???tamper????????,??expresso???????  |
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LittleCup
註冊時間: 2009-01-30
文章: 106
來自: Hong Kong
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| 發表於: 星期五 二月 19, 2010 6:40 am 文章主題: Re: ???tamper??? |
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| ranma 寫到: | | ???tamper????????,??expresso??????? |
After tamping, the coffee ground tamped with the ?? tamper is having more coffee on the rim of the basket than in the centre. Basically this slightly increases the overall friction of for water flow on the side, and thus water flows more slowly on the side. This effectively counter-balance the effect of the samller friction between the basket and the coffee ground, and therefore the overall rate water of water flow for the side and for the centre should be roughly similar.
?? tamper offers the same level throughout the basket. If water flows at the same rate on the side and in the centre of the basket, coffee extraction should be rather even for the whole coffee puck, and therefore the coffee taste should be good.
There are supporters of both types of tampers, as you can see the reasons listed above.
Some coffee lovers own many tampers, some with convex shape (?? ), some with flat shape (??), so different effects can be tried out. |
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