The diagrammatic method of adjusting the thickness of the coffee grinder is as follows:

Determine the adjustment direction you need (fineter or coarser). Make sure there are enough coffee beans in the bean bin and that the valve between the bean bin and the grinder is open so that the coffee beans can fall into the grinding area smoothly.

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2. Turn on the grinder for 10 seconds and clean the coffee grounds remaining in the grinder (these are the grinding degree that has not been adjusted or It is the remaining coffee powder from the previous scale).

3. Use the adjusted grinding thickness to grind the coffee and make a cup of coffee, while ensuring that the powder amount, smoothing and pressing steps are accurate.

The standard for making espresso is: 20-30 seconds extraction time, powder to water ratio is about 1:2. For example, 18 grams of coffee powder produces 36 grams of coffee liquid.

Advantages and Disadvantages of Coffee Grinder

Advantages? The coffee grinder consists of an upper and lower cutterhead. The base is fixed on the motor. When the motor starts, the upper and lower cutterheads rotate to produce cutting. action. When the coffee particles fall from the middle, the rotating cutter at the bottom will rotate the coffee beans to the periphery, pushing the coffee beans into the toothed cutter part for grinding.

Therefore, the weight of the coffee beans placed on it will affect the uniformity of the coffee beans entering the cutterhead, thereby affecting the uniformity of grinding; in addition, due to pushing, the number of collisions between coffee beans will increase, thus The proportion of fine powder produced will also increase. This is the reason why common flat knife grinders grind particles with slightly poor uniformity and more fine powder.

Disadvantages: The coffee particles ground by the flat knife appear in flakes, and the flake shape can increase the cell wall area, so using the flat knife can increase the concentration and extraction rate of the coffee liquid in a short time, making the coffee aroma in It can be significantly improved in a short period of time. At the same time, due to its long and flat shape and small volume, when the extraction time becomes longer, the xylem of the particles will absorb too much water, causing an increase in off-flavors and astringency.