About the main ingredients of coffee
The main ingredients of coffee
Caffeine: it has a particularly strong bitter taste and stimulates the central nervous system, heart and respiratory system. Appropriate amount of caffeine can also reduce muscle fatigue and promote digestive juice secretion. Because it promotes kidney function, it is diuretic and helps the body to expel excess sodium ions from the body. But eating too much can lead to caffeine poisoning.
Tannic acid: the boiled tannic acid will decompose into pyrouric acid, so the coffee that has been brewed for too long will taste worse.
Fat: the most important ones are acid fat and volatile fat.
Acidic fat: that is, fat contains acid, its strength will vary according to the type of coffee.
Volatile fat: is the main source of coffee aroma, will emit about 40 aromatic substances.
Protein: the main source of calories, the proportion is not high. Most of the protein in coffee powder will not dissolve out when brewing coffee, so the intake is limited.
Sugar: coffee beans contain about 8% sugar. After baking, most of the sugars are converted to caramel, which browns the coffee and combines with tannins to produce sweetness.
Fiber: the fiber of raw beans will be carbonized after baking and combine with caramel to form the hue of coffee.
Minerals: contains a small amount of lime, iron, phosphorus, sodium carbonate and so on.
- Prev
A little knowledge of coffee flower drawing
The tall cup is a perfect match with the thick milk foam. Use a tall cup to give you enough time to merge. Full fusion can not only make the coffee taste better, but also strengthen the shape when pulling flowers, resulting in a clear drawing of eucalyptus. But the prerequisite is that the foam should be sufficient. Some people will only pour hot milk into the cup before forming and keep the foam until the end for flower drawing.
- Next
Steps of milking coffee
There are three things to do when making milk foam: heat the milk, beat the milk foam, add milk to the milk kettle and add milk to 1 to 1 full start the steam valve to release the water in the steam stick. Insert the steam nozzle into the fresh milk surface about 3-5MM deep (depending on the steam nozzle and steam intensity will vary slightly) open the steam valve should hear a slight hiss at this time, control the kettle position
Related
- Beginners will see the "Coffee pull flower" guide!
- What is the difference between ice blog purified milk and ordinary milk coffee?
- Why is the Philippines the largest producer of crops in Liberia?
- For coffee extraction, should the fine powder be retained?
- How does extracted espresso fill pressed powder? How much strength does it take to press the powder?
- How to make jasmine cold extract coffee? Is the jasmine + latte good?
- Will this little toy really make the coffee taste better? How does Lily Drip affect coffee extraction?
- Will the action of slapping the filter cup also affect coffee extraction?
- What's the difference between powder-to-water ratio and powder-to-liquid ratio?
- What is the Ethiopian local species? What does it have to do with Heirloom native species?