Coffee automatic grinder grinding scale bigger powder finer?- Hand coffee grinder

Automatic coffee grinder the bigger the scale, the finer the powder?-hand coffee bean grinder

Roughness can control bitterness is a good way to control bitterness, because the finer the grinding, the higher the extraction rate, the easier it is to extract high molecular weight astringent bitter substances such as chlorogenic acid, quinic acid, caffeine and carbides. On the contrary, if the grinding is too rough, the lower the extraction rate is, the more difficult it is to extract the astringent bitter substance with high molecular weight, but the sweet taste with middle molecular weight may remain in the coffee grounds because of insufficient extraction, which is a waste. The scale is not immutable. Do not use the same grinding scale for playing coffee. If you know that the density and baking degree of each bean are different, the required scale will not be the same. The scale of very hard beans or shallow roasting can be slightly adjusted to be finer, and the deep roasting can be adjusted thicker. If you think a bean tastes bitter and salty on scale # 3, this is excessive extraction, which can be adjusted to # 3.5 or # 4, which will significantly improve the bad taste spectrum, and vice versa. In addition, the bean grinder should be diligent in maintenance, regularly remove the knife head and remove the grease dirt inside. The knife head is consumable, and it will be dull every 800 to 1000 pounds. Remember to replace it, otherwise the grinding particles will be half-thick, which will cause uneven extraction and damage the good flavor of coffee.

Since we use a large bean grinder, the above changes may not be so obvious on a small bean grinder. But this is enough to prove how important the data is in debugging the bean grinder.

[start debugging bean grinder]

When you do this, most brands of bean grinders on the market will store 60g ground coffee powder. According to our experience, you need to store at least 100g of coffee powder in the bean grinder before you can start debugging the machine, and the debugging effect is more obvious. So, you need to make at least three more espresso before you start debugging the bean grinder, and when you're done, you have to make at least five or more cups of coffee. This is very important! The last thing you want to do is go back to work and then retest and debug your machine when you need to decide whether to re-clean the coffee mill. In order to ensure the quality of coffee, if your debugging range is more than 2 scales, you need to thoroughly clean your bean grinder. Although we don't want to waste coffee, according to our experience, the effect is better after cleaning the bean grinder.

[analysis results]

If you get the results you want, congratulations! But remember, this is just the beginning. Ensuring the accuracy of the data in the test does not guarantee the perfect quality of your coffee, but it is still a shortcut for you to pursue the best quality of your coffee! If you successfully use this method to calculate the formula for one type of coffee, you can start testing the data needed to make other varieties of coffee, such as drip coffee. Then you will know which data are useful and which are not.