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'<p>
咖香導讀：正所謂好記性不如爛筆頭，好多記憶會隨着時間的推移而變得模糊，但是，白紙黑字記下的東西，不管時隔多久，你再去翻找，它都還在!在你還是學徒的時候記下來的筆記，也許會對現在的你有很多啓發!接下來一組“高能神圖”帶你走進學(shou)霸(can)的咖啡世界!(我讀的書多，你別騙我)</p>
<p>
一.萃取均勻度的影響因素：</p>
<center>
<img alt="" height="852" src="https://mmbiz.qlogo.cn/mmbiz/Y0llwScBvMHEZ6AS23sdlo1hoC58bBwMVDicYeym0YkMLtGib9SkNmwwYhlm2sHTeqFCqpQiarW6BepudibBayyIRg/0?wx_fmt=jpeg" width="1136" /></center>
<center>
<img alt="" height="1136" src="https://mmbiz.qlogo.cn/mmbiz/Y0llwScBvMHEZ6AS23sdlo1hoC58bBwMHmH4A13MH9aXaaJ8qh1FHRoPEbKVU3Ze2G50UG7Srp6jDDNH9pHjPg/0?wx_fmt=jpeg" width="852" /></center>
<p>
很好，這張高能圖還是在小咖的理解範圍之內，畢竟它沒有“圖文並茂”，自己梳理了一下，小夥伴可能是想表達以下觀點：</p>
<p>
影響萃取均勻度的因素有：1.萃取時間、2.萃取溫度、3.人爲操作，4.硬件調整。</p>
<p>
然後控制好這些變因需要：1.固定萃取時間、2.找出最佳的研磨刻度、3.找出恰當的衝煮水溫、4.降低人爲失誤、5.檢驗咖啡豆是否新鮮、6.檢驗是否需要升級設備。</p>
<p>
最後就可以看結果啦。A、B、C分別代表的是：A.咖啡中易揮發成分(香氣)B.咖啡中可溶及不可溶成分 C.咖啡中的焦、苦、生、澀味。當我們把其他因素固定，把萃取時間分爲短中長三段，就可以的得出：</p>
<p>
時間(短)：A散去較少，保留完整、B溶出率低，味淡稀薄、C還來不及溶出。</p>
<p>
時間(中)：A散去稍多，香氣保留一半左右、B溶出中等，味道豐富，相對較稠、C溶出率低。</p>
<p>
時間(長)：A散去大部分，只剩下一成或者更低、B溶出率高，稠度高、C溶出率高，令人不舒服的味道覆蓋了好的味道。</p>
<p>
(小咖認爲，這個筆記應該是要未完待續的!)</p>
<p>
二.研磨度</p>
<center>
<img alt="" height="1136" src="https://mmbiz.qlogo.cn/mmbiz/Y0llwScBvMHEZ6AS23sdlo1hoC58bBwMqUU9qQPENqutpGj7Ha6fxdOTcUSuVk6LQdibk1ZSRK148ib2pkCsRG3Q/0?wx_fmt=jpeg" width="852" /></center>
<p>
此乃圖文並茂的典範，小咖在此提出表揚!研磨度，只說不夠，有比喻有實物作參考，媽媽再也不用擔心我不知道中度研磨是個什麼鬼了!</p>
<p>
研磨度應與萃取時間成正比 咖啡研磨的粗細度會直接影響萃取時間長短以及萃出率高低。咖啡磨得愈細，粉層愈密實，有較多的咖啡粉粒與熱水接觸，萃取阻力加大，愈易延長萃取時間，並提升萃出率，很容易萃取過度。 反之，咖啡磨得越粗，粉層空隙愈大，有較少的咖啡粉粒與熱水接觸，萃取阻力轉弱，愈不易延長萃取時間，而降低萃出率，很容易萃取不足。因此，咖啡磨得愈細，會延長萃取時間並提升萃出率;咖啡磨得愈粗，會縮短萃取時間並壓低萃出率。 在常態下，咖啡粗細度會與萃取時間與萃出率成反比。粉粒磨得愈粗，萃取阻力愈小，咖啡流量愈大，萃取一杯的時間愈短，萃出率愈低，味道愈清淡。</p>
<center>
<img alt="" height="596" src="https://mmbiz.qlogo.cn/mmbiz/Y0llwScBvMEZIINfFxe8Z7QRDnL4WiaYz8vCQCFaAPaESbj2VGp2WlXZAdSplFaT7b6zeqxFtpO0CoGMJ7XJIaA/0?wx_fmt=jpeg" width="494" /></center>
<p>
深焙豆稍粗，淺焙豆稍淺 另外，老手在決定咖啡豆研磨度前，會先看看熟豆的色澤與出油狀況，烘焙度愈淺的咖啡，纖維質愈完整堅硬，愈不易萃取，宜採稍細研磨，但也不能太細，以免凸顯尖酸味。烘焙度愈深的咖啡，纖維質受創愈深，愈易萃取，宜採稍粗研磨，深焙磨太細會苦口。 因此，深焙咖啡的研磨度，一般會比淺焙豆來得粗一點。</p>
<p>
粗細度可控制苦澀 粗細度是控制苦澀的良方，因爲磨得愈細，萃出率愈高，愈易把綠原酸、奎寧酸、咖啡因和碳化物等高分子量的澀苦物萃取出來。反之，磨得太粗，萃出率愈低，愈不易萃出高分子量的澀苦物，但中分子量的甜香滋味，也可能因萃取不足而殘留在咖啡渣內，形同浪費。刻度並非一成不變 玩咖啡切忌使用一成不變的研磨刻度，要知道每支豆子的密實度與烘焙度不同，所需的刻度就不會相同，極硬豆或淺焙的刻度可稍調細一點，深焙可調粗一點。如果你覺得某支豆子以刻度#3，喝來有苦鹹澀的味道，這就是萃取過度，可調粗到#3.5或#4，會明顯改善不好的味譜，反之亦然。 另外，磨豆機要勤於保養，定期拆下刀盤，清除裏面的油垢，刀盤是消耗品，每磨800~1000磅左右就會磨鈍，記得要換新，否則磨出來的顆粒，粗細參半，會造成萃取不均，減損咖啡好風味。</p>
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'childids' => 323,
'thumb' => '',
'show' => '1',
'setting' =>
array (
'edit' => 1,
'disabled' => 0,
'getchild' => 1,
'linkurl' => '',
'urlrule' => 3,
'seo' =>
array (
'list_title' => '[第{page}頁{join}]{catpname}{join}{modname}{join}{SITE_NAME}',
'list_keywords' => '',
'list_description' => '',
),
'template' =>
array (
'pagesize' => 20,
'mpagesize' => 20,
'page' => 'page.html',
'list' => 'list.html',
'category' => 'category.html',
'search' => 'search.html',
'show' => 'show.html',
),
'cat_field' => '',
'module_field' => '',
'html' => 0,
),
'displayorder' => '0',
'acount' => '1',
'namerule' => '{typedir}{Y}{M}{D}{aid}.html',
'namerule2' => '{typedir}/list_{tid}_{page}.html',
'mid' => 'article',
'pcatpost' => 1,
'topid' => '1',
'domain' => '',
'catids' =>
array (
0 => '323',
),
'is_post' => 1,
'mobile_domain' => '',
'tid' => 1,
'url' => 'https://gafei.com/list-7yuezixun.html',
'total' => 1,
'field' =>
array (
),
),
) |
| urlrule |
'/views-43115-[page].html' |
| fix_html_now_url |
'' |
| my_web_url |
'https://cdn.gafei.com/views-43115' |
| get |
array (
's' => 'article',
'c' => 'show',
'id' => '43115',
'm' => 'index',
) |
