綜合回應 - 咖啡討論
By Annie
at 2010-07-23T23:45
at 2010-07-23T23:45
Table of Contents
※ 引述《hsubonbon (愛著妳...)》之銘言:
: 溶解行為的的物理和化學最原始出發點都是擴散
: 不管有沒有考慮pH值or分子間電偶分部等複雜情況
: 都得用擴散方程來計算溶質在粉和水兩造的濃度差
: 而粉的表面到水中各種溶解物質的濃度分佈為指數分部
: 不管是粉的薄片xy方向還是水行進的z方向都是
: 雖然考慮起來很複雜
: 但是對xyz的指數項做積分後
: 濃度分布之前方程式之前還是要有個"正比"的常數項
: 也就是我們討論過的粉的表面積和重量等相關常數項
請教上述這部分,
是否有可以讓我參考的理論和物理意義的解釋哩?
您的意思是濃度分部的函數對空間積分,會得到甚麼呢?
: 白化的現象會提早出現
: 也就是苦味會提早出現
: 也就是餅破的時候會有甚麼極端的味道出來?
: 就是過萃的苦味
請教一下,白化或是您說得過粹,
咖啡粉應該都被水沖洗到最後,
為何還會有苦味呢?應該是所有味道都淡淡的阿~
感恩!
--
: 溶解行為的的物理和化學最原始出發點都是擴散
: 不管有沒有考慮pH值or分子間電偶分部等複雜情況
: 都得用擴散方程來計算溶質在粉和水兩造的濃度差
: 而粉的表面到水中各種溶解物質的濃度分佈為指數分部
: 不管是粉的薄片xy方向還是水行進的z方向都是
: 雖然考慮起來很複雜
: 但是對xyz的指數項做積分後
: 濃度分布之前方程式之前還是要有個"正比"的常數項
: 也就是我們討論過的粉的表面積和重量等相關常數項
請教上述這部分,
是否有可以讓我參考的理論和物理意義的解釋哩?
您的意思是濃度分部的函數對空間積分,會得到甚麼呢?
: 白化的現象會提早出現
: 也就是苦味會提早出現
: 也就是餅破的時候會有甚麼極端的味道出來?
: 就是過萃的苦味
請教一下,白化或是您說得過粹,
咖啡粉應該都被水沖洗到最後,
為何還會有苦味呢?應該是所有味道都淡淡的阿~
感恩!
--
Tags:
咖啡
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