Coffee knowledge Espresso has the lowest caffeine content
Caffeine content is related to bean type, roasting degree and coffee powder soaking time: Robusta beans are much higher than Arabica beans; the deeper the coffee beans are roasted, the less caffeine will evaporate; the longer the coffee powder is soaked, the more caffeine will be extracted. So for the same amount of beans, deep-roasted Arabica beans have the least caffeine content, as do espresso beans made in espresso machines.
- Prev
Coffee Roasting for the First Time (1) Defective Beans
The first step before roasting beans is to pick out all kinds of defective beans. Some defective beans are not easy to identify after roasting. There are some fine green coffee beans on the market that have been carefully selected and processed at the time of delivery. The following picture shows the types and causes of defective beans
- Next
Seven Indexes of High-quality Coffee
① dry aroma Fragrance: aroma of roasted beans after grinding ② wet aroma Aroma: aroma of coffee liquid ③ acidity ACidity: sour ④ alcohol thickness Body: concentration and weight of coffee liquid ⑤ afterrhyme Aftertaste: commonly known as Huigan ⑥ flavor Flavor: taste buds perceived taste and nasal perceived flavor ⑦ taste flat after drinking coffee
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?