新鮮咖啡粉手沖時,一定有大量氣體釋出嗎? - 咖啡討論
By Donna
at 2014-02-04T16:28
at 2014-02-04T16:28
Table of Contents
一般咖啡豆磨粉手沖時,先注入些許熱水進行悶蒸,然後再次注水
進行萃取時,濕潤的咖啡粉表面會膨脹隆起如同火山爆發,這是
因為CO2氣體釋出,也代表這咖啡豆很新鮮。
我每次購入的咖啡豆都是如此之表現,但此回換向另一店家新購豆子
,老闆有標註烘焙日期,我於烘焙日後約五日進行磨豆手沖,咖啡粉
表面卻是很平靜,沒有大量氣體釋出之跡象。
請教,新鮮豆子有可能這樣嗎?還是老闆唬濫我烘焙日期?
(豆子是淺~中烘焙)
--
進行萃取時,濕潤的咖啡粉表面會膨脹隆起如同火山爆發,這是
因為CO2氣體釋出,也代表這咖啡豆很新鮮。
我每次購入的咖啡豆都是如此之表現,但此回換向另一店家新購豆子
,老闆有標註烘焙日期,我於烘焙日後約五日進行磨豆手沖,咖啡粉
表面卻是很平靜,沒有大量氣體釋出之跡象。
請教,新鮮豆子有可能這樣嗎?還是老闆唬濫我烘焙日期?
(豆子是淺~中烘焙)
--
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