2. Coffee grinding: the fineness of grinding will affect the taste of coffee. Coarse ground coffee is suitable for French filter press, hand-washing and cold extraction; Medium mill is suitable for drip coffee machine and espresso coffee machine; Fine grinding is suitable for espresso machines.
3. Proportion of coffee: Generally speaking, each cup of coffee needs 15~20g of coffee powder.
4. Water quality: Use fresh and clean water to brew coffee. Too hard or too soft water quality is not suitable for brewing coffee.
5. Brewing method: There are hand-washing, dripping, French press kettle and espresso machine for brewing coffee.
6. Refining time: Different brewing methods need different refining time. Generally speaking, it takes 3~5 minutes for hand washing and dripping, 4~6 minutes for French filter press kettle and 20~30 seconds for espresso machine.
7. Temperature: The water temperature of brewing coffee should generally be between 90~96℃.
8. Techniques: When brewing coffee, you can use exquisite techniques, such as the strength and angle of pouring water, to influence the taste of coffee.