How to adjust the coffee grinder? what kind of equipment do you need to make coffee?

How to adjust the coffee grinder? what kind of equipment do you need to make coffee?

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 oil 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 and half-thick, which will cause uneven extraction and damage the good flavor of coffee.

More than 98% of the ingredients in a cup of coffee are "water". The importance of water is beyond doubt! If you use bad water to brew coffee, even the best beans will be in vain-because bad water can destroy the best coffee. Even a simple "filter kettle" can filter out many bad substances for "tap water", making the brewed coffee more fragrant, strong and mellow. Like making tea, you should avoid using distilled water. If the tap water in your place is of poor quality, using clean mountain spring water is also an ideal way.

Generally speaking, the most suitable water temperature for brewing coffee is between 88 and 94 degrees Celsius. Avoid using boiling hot water to brew coffee. Let the water boil for 1-2 minutes and then use it to make coffee.