Factors affecting espresso how to make espresso machine
The degree of grinding is very extensive, generally speaking, it is related to the variety of coffee beans and the degree of baking. The grinding degree of 100%ARABICA beans is generally a little thicker than that of mixed beans. There is a certain range of grindness to cook a perfect Espresso. When the degree of grinding is too fine, when brewing coffee, the effluent will flow out in droplets, and the hot water will stay for too long, resulting in excessive extraction; if the degree of grinding is too coarse, the coffee will flow, resulting in insufficient extraction and affecting the taste of coffee. Normal grinding degree, combined with normal pressing powder, the state of extracted coffee should be fine and uninterrupted. This factor often affects the quality and taste of a cup of coffee. General double Espresso, the amount of powder required is about 15-18g. Because too much powder will cause the coffee pressed powder to top the outlet network, so that the coffee does not have enough room to expand, resulting in over-extraction. If the amount of powder is too little, the thickness of pressed powder is insufficient, and it is easy to be broken down by hot water, resulting in uneven extraction. The factor of water quality is often ignored. The essence of coffee beans is extracted, mainly affected by calcium ions, magnesium ions and bicarbonate ions in water. A perfect filtration system can not only ensure that these mineral ions are kept within a reasonable range, but also reduce the temperature balance caused by water calcification in our coffee machine:
When extracting coffee, the temperature should be balanced, not too high or too low.
Water pressure:
The pressure of Italian concentration should be 9-10 pressure. This is a conclusion drawn through repeated experiments and an important factor in the extraction of coffee oil.
Grinder:
Finding a grinder with the right performance is a necessary condition for perfect Italian concentration, and the grinder should be checked and cleaned on time. Grinding blades (roller of cutter) should also be replaced regularly to maintain the best degree of grinding. We use Italian MAZZER professional coffee grinder.
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Requirements for Natural Weather conditions in the method of planting conditional Coffee beans in Guangdong, China
Coffee tree evergreen leaves, the leaf tip is more pointed, and is two opposite groups. The surface of the leaf is dark green, the back is light green, and the blooming flower is pure white. There are five stamens and one pistil in the flower, and the petals are usually five, but some have six or even eight petals. The flowers will give off a jasmine-like fragrance, but the flowers will wither in about three or four days. The fruit has just begun with the leaves.
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Introduction to the planting techniques of how many coffee beans a year can be produced by a coffee tree
The word coffee comes from the Latin word for the genus coffea. This genus is a member of Rubiaceae. It has more than five hundred species and 6000 varieties, most of which are heat-stagnant trees and shrubs. Linnemas, a Swedish botanist in the 18th century, described this genus, but botanists disagreed on its precise classification. There may be at least 25 coffee genera.
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