悶蒸為何膨不起來?Why coffee grounds doesn't swell during blooming?

聽說悶蒸要悶出飽滿的漢堡型才漂亮,但我悶蒸怎麼凹下去啦~~~今天小學堂跟大家分享悶蒸膨不起來的原因

We’ve heard that a good blooming would have a round hamburger shape, but why sometimes it smolder? Today, we will share with you the reasons why coffee grounds doesn’t swell during blooming.

 

悶蒸膨不起來的原因:
1. 豆子較不新鮮(二氧化碳排放完)
2. 豆子密度較高(沒什麼細粉)
3. 磨粉較粗(顆粒較重)
4. 淺焙(沒什麼二氧化碳)
5. 悶蒸水過多(咖啡粉吸水過多)
6. 磨粉後擺放過久(二氧化碳排放完)

Reasons for not swelling:

1. Beans are less fresh (CO2 is degassed)

2. Beans are denser (no fine powder)

3. The grinding size is coarser (the particles are heavier)

4. Light roasting (no CO2)

5. Too much water (the coffee powder absorbs too much water)

6. The powder is placed for too long after grinding (the carbon dioxide is released)

 

小編著手實驗第4點和第5點,磨正常粗細度20克,一支用淺焙、一支用中焙,並給予過多的悶蒸水,如下:

We experimented on the fourth and fifth: using 20g of normal grinding size coffee, one with light roasting and one with medium roasting, and pouring too much water, as follows:

 

上面這張圖
用60克熱水悶蒸
豆子是 淺焙
因為悶蒸水過多
膨不太起來

The picture above

Blooming with 60g of hot water

Light roasted beans

Because of too much water, it doesn’t swell

 

上面這張圖
一樣用60克熱水悶蒸
豆子是 中焙
悶蒸水即使過多
卻膨的很好

The picture above

Blooming with 60g of hot water

Medium roasted beans

It swells even with too much water

 

看著咖啡粉在悶蒸時膨起,有種療癒的放鬆感,但有時沒膨起的咖啡才是很好喝的;像是淺焙的豆子、或是密度比較高的高海拔藝妓豆等,即使在悶蒸階段沒膨起,在整個沖煮完成後,那香氣飽滿、層次分明的好味道,不是深焙膨起的咖啡可以比擬,豆子取向不同、功能性不同。或是剛烘好、還沒養豆好的豆子,在悶蒸時非常膨,卻不易留住水來萃取,反而得不到完整的咖啡風味。好喝的咖啡,值得細細品味~

Watching the coffee swelling during blooming is a healing and relaxing feeling, but sometimes coffee that doesn’t puff up is delicious. Such as lightly roasted beans, or high-density high-altitude Geisha beans, etc. Even though they do not swell during the blooming stage, after the entire brewing process is completed, the aroma is full and the taste is well-defined, which is better than the dark roasted beans swells during blooming. Each coffee bean is different. The freshly roasted and no aging process coffee beans are very swollen during blooming, but it is not easy to retain water for extraction and hard to obtain the complete coffee flavors. Delicious coffee, worth savoring!
 


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