How to distinguish the advantages and disadvantages of instant coffee by senses
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.
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Drinking coffee every day is good for your health
According to overseas media reports, a recent study in Hong Kong shows that after getting up in the morning, drinking a cup of tea or coffee and forming a long-term habit is not only refreshing, but also good for health. The caffeine in tea and coffee has always been regarded as addictive, but recent studies have shown that it also has many benefits. For example, caffeine can help treat cancer and brain diseases.
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Countries use coffee by-products to develop drinks
Recently, Belgium has made a material from the pulp of a new variety of white coffee, which has the same ingredients as ordinary coffee, but milky white, easy to digest and absorb, and has a variety of health functions. The creators have not only broadened the utilization of waste pulp, but also used this raw material to make coffee soda, which is quite suitable for athletes and people with indigestion. Not long ago, Japan's New Century Food
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