The coarseness adjustment of the hand-coffee bean grinder is a key step, which directly affects the taste and extraction effect of the coffee. Here are some basic adjustment methods and suggestions:
Basic adjustment steps:
Unscrew the metal nut on the top of the hand-coffee grinder.
Remove the crank handle of the hand-coffee grinder.
Remove the fixed metal card above the hand-grinding fineness adjustment screw.
Pinch the fixed column in the middle of the hand-coffee grinder with your left hand, and rotate the coarseness adjustment nut with your right hand. Rotating downward will make the grinding finer, and rotating upward will make the grinding coarser. During this process, you should put on the rotating handle from time to time, take some coffee beans for grinding, and observe whether the coarseness meets the needs. 1
Adjustment suggestions:
For hand-coffee machines, the grinding degree is adjusted by rotating the adjustment knob. Usually the grinding degree increases from 1 to 9, and each number represents a different grinding degree. It is recommended to use a grinding degree between 1 and 3 for hand-coffee machines. 2
Testing and adjustment:
Put some coffee beans in a cup, shake the cup gently, and observe whether the coffee beans are in powder form. If they are in powder form, it means that the grinding degree is appropriate.
When adjusting, it is recommended to find a suitable grinding degree first, and then test and adjust it several times until the most suitable grinding degree is found. 23
Maintenance and care:
After using the hand-crushed coffee machine for a period of time, the powder ground with the same grinding degree may become coarser. At this time, it is necessary to adjust it in the correct way, usually by rotating the adjustment nut counterclockwise. 4
Through the above steps and methods, you can effectively adjust the grinding coarseness of the hand-crushed coffee bean machine to obtain the ideal coffee taste and extraction effect