Coffee common sense how to distinguish instant coffee by sense
Instant coffee is coffee beans roasted and crushed to get pure coffee, and then extracted and vacuum concentrated into powdered coffee, which can be brewed at any time and dissolve in boiling water. The shelf life of instant coffee is usually two years. Now I would like to introduce the sensory identification of the quality of instant coffee, which can be divided into two stages: before brewing and after brewing.
(1) pre-brewing identification
High-quality instant coffee-brown to dark brown due to different varieties and processes; irregular particles about 2 mm in size, mixed with some fine powder; unique aroma of coffee due to Maillard reaction during stir-frying.
Inferior instant coffee-dark in color, some iron black; caking or agglomeration in tissue due to moisture or other reasons; coffee roasting flavor is weak or can not be smelled at all, replaced by a strong scorched flavor.
(2) Identification after brewing.
Good quality instant coffee-completely dissolved, free of dregs and suspended matter; the soup juice is brown and bright; it has a strong coffee aroma; it has a pleasant bitter and sour taste after adding sugar.
Inferior instant coffee-after dissolving, there is sediment at the bottom of the cup, and the soup is dark and brown-black (at the same concentration); the aroma is light, but the scorched taste is strong; after adding sugar, the bitter taste and sour taste are strong, especially the aftertaste is hard.
- Prev
26 points for attention in brewing coffee in plug-wind pot
1. The next bottle should be dried and there should be no water droplets. When you pull out the upper seat, tilt to the right and pull straight up, do not break 3. The spring under the middle filter should be tightened, the hook should be hooked, and pulled to the center 4. When you plug in the seat, plug it down and hold it tight by 5. Pay attention to water quality: pure water, purified water, magnetized water, distilled water, do not use mineral water 6. The temperature is 80-90 degrees Celsius in this room. Punch time: all 50: 60
- Next
Flannel filter shows the ultimate flavor of coffee
Flannel filter brewing-shows the maximum flavor of coffee [characteristics] the coffee brewed with flannel filter is the most mellow and delicious. However, special attention should be paid to the arrangement and storage of the filter, otherwise the taste of the coffee will be low. [preparation before brewing] 1. Coffee powder expands after boiling water is injected, so choose a slightly larger strainer. two。 The fluff of the filter screen is made on the outside to fully remove the water.
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