Introduction to extraction time and Water temperature of Belgian Pot Coffee

Introduction to the extraction time and water temperature of Belgian pot coffee beverage is a very unstable liquid, which may change its characteristics and taste at once. This is the main reason why the espresso machine (Espresso Machine) was invented. The espresso machine can continuously extract several cups of coffee, and the high pressure in the brewing process can emulsify and melt the oil and gum in the coffee beans, and the essence of the coffee beans can be completely extracted by pressure, making the brewed coffee more concentrated and more mellow in taste and flavor. Difficulty coefficient: ★ playability Index: ★ Flavor acquisition: ★ needs equipment: Italian coffee machine, Italian bean grinder and a series of supporting equipment siphon pot generally have two kinds of cooking methods, one is to put coffee powder into the funnel above, then add water into the kettle, then put the funnel mouth tightly into the pot, boil the water, when the boiling water goes deep into the funnel, stir for about 40 minutes and 60 seconds, then extinguish the heating apparatus. When the coffee falls back into the pot, you can remove the funnel and pour out the coffee to drink. The other is to boil the water first, then pour the coffee powder into the upper pot, stir and soak for about 40 minutes and 60 seconds, extinguish the heating apparatus, and wait for the coffee to flow back to the next pot, then you can remove the funnel and pour out the coffee drinking difficulty coefficient: ★★★★ playability index: ★★★★☆ flavor acquisition: ★★★★☆ lowest price: equipment: siphon pot, bean grinder, heating tools (alcohol lamp, gas stove, halogen lamp, etc.)

1. When making ESPRESSO coffee, the most flavor will be extracted when the water temperature of 90.5 ℃ (195 °F) passes through the coffee powder. (the pressure of the water in the coffee machine must have 130PSI, that is, the pressure of 9 atmospheric pressure, in order to effectively and quickly extract the best taste of coffee.

2. When the water temperature is lower than 88.8 ℃, the coffee will have obvious sour taste, and the color is slightly lighter than the normal coffee.

3. When the water temperature is higher than 92.2 ℃, the coffee oil will be charred, causing the coffee to be scorched and bitter, and the oil slick on the coffee surface will have dark markings.

4. Espresso coffee is suitable for deep roasting beans, and the acidity of deep roasted beans is low.

5. Espresso coffee surface foam center, if the formation of a dime-shaped white area, indicating excessive extraction of caffeine and bitter oil.

6. The three largest coffee producing countries in the world are Brazil, Colombia and Indonesia.

7. The lower the milk fat of fresh milk, the easier it is to foam.

8. Experts know the degree of milk foam by experience or sound. People who are not familiar with it had better put a thermometer in a stainless steel cup. The ideal temperature for milk foaming is 140 degrees Fahrenheit.