How many coffee beans are ground at a time? How many coffee beans are grinded per person

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

Several points needing attention in the use of bean grinder

In the process of coffee extraction, no matter which extraction method we use, what kind of coffee beans and equipment are used to make a cup of coffee, the grinding quality plays a very key role from beginning to end. Aiwo incense has introduced how to choose a suitable bean grinder in the article "how to choose the right bean grinder". There are many friends and some misgivings in use. This article introduces some points for attention in the use of some bean grinders.

First, when adjusting the scale, form the habit of turning on and then adjusting, do not adjust the scale and then turn on.

A good grinding plate of a bean grinder is a core component, which is very precise. If it is fine-grained, it is likely to force too hard and cause wear and tear of the grinding disc, or hard adjustment causes wear and tear or even tilt of the grinding disc when there are large particles not thrown out in the middle of the gap. If the coarse direction of the scale is better, it is still recommended to form a good habit of turning on the machine before adjusting the scale and then adjust it. To avoid some inexplicable risks.

You don't believe me! Look at the picture. When I didn't come back for a long time, one was broken by me, and the trimming lever was broken, so I asked you if your flesh hurt.

Turn on the bean grinder before you put the coffee beans

This is the same as adjusting the scale, get into the habit of starting the bean grinder and then grinding the coffee beans, or close the bezel, turn on the baffle and then open the bezel to put the beans. First put the beans and then start the grinding machine grinding and start the grinding machine first and then put the beans, both of which may affect the flavor more or less. If you put the beans first and then start, the grinding uniformity at the moment of start-up will be different from that of normal grinding. And may face the instantaneous impact is too big, the motor can not drive, especially some domestic imitation of poor quality, easy to get stuck, easy to burn the fuse.

Some commercial large bean grinders, such as Pegasus 207, the grinding plate is large enough, although there will not be enough motor power, but the instantaneous impact will aggravate the wear and tear of the grinding disc. Of course, it does not mean that this operation will be bad, but it is better to develop the good habit of starting the bean grinder and then adjusting or putting beans, the load of the motor will not be too large instantly, and the fuse will not be burned easily. Usually pay attention to these details to protect the knife head, the knife head can also be used for many years.

Third, wash and grind before use and clean regularly.

There must be a little coffee powder left in the knife head of the bean grinder, and the last remaining powder will certainly be mixed during grinding, which can be ignored when the coffee shop merchants grind the same kind of beans in large quantities. If you want to change different beans, you still need to wash and grind. If you are grinding once or twice a day for household use, you must wash and grind. Can put a few need to operate before the formal grinding of the same type of coffee beans for "washing and grinding", so as to avoid the taste of other beans, if you do it every day, there is no need for more, three or five can. If you haven't used it for a long time, take a few more tablets and let the new powder take the old powder out of the mill and OK it.

In addition, coffee beans contain oil, so the grinding machine will accumulate fine powder and grease in places such as the gap between the cutters on the inner wall after being used for a period of time. Friends with practical ability had better take apart the grinding plate and clean it up regularly with brushes and blowing balls, otherwise the grease will accumulate dirt, there will be stale smell for a long time, and there will be a hidden danger of string smell. If you really don't have the ability to do it, you can only put a little more beans to rush it.

Fourth, coffee beans with different roasting degrees will also have an impact on the grinding effect.

Nowadays, most fine beans are shallow baked, and the altitude producing areas of fine beans will be relatively high, and the texture of beans will be relatively hard and compact. In the same bean grinder, the powder ground out of the same grinding scale may be thicker than deep baking. Shallow baking fine powder will be less, deep baking fine powder will be more, specific will also be related to the color quality of the bean grinder. Because the degree of grinding required varies according to the baking degree of different kinds of beans.

Therefore, it is not necessary to fix a scale to get the same grinding powder thickness, therefore, you need to understand these subtle changes in order to get the degree of grinding you want. In this picture, the two on the left are Pegasus 207N scale 4. Under the same conditions, moderately lightly baked sun Ye Jia Xue caffeine is compared with commercial specially baked spaghetti beans with deep baking, and there are relatively more fine powders with deep baking degree. It's not obvious, but it does happen. The one on the right is Pegasus 900 ground spaghetti powder.

Fifth, the influence of the heating of the grinding plate of the bean mill on the coffee powder.

Generally speaking, the cutter head of the bean grinder is composed of two parts, and the adjustment of the gap between the two components determines the thickness of the grinding degree. . The bean grinder starts the cutter head and starts to rotate. In this process, there will be friction and friction will generate heat. The heat will increase the parts that come into contact with the coffee powder, such as the knife head, thus affecting the coffee powder itself. this temperature varies according to the working time of the soybean milk grinder.

The thermal effect occurs most obviously in the continuous operation of the bean grinder in the coffee shop, especially in the grinding of Italian concentrated fine powder. The metal grinding plate of the bean grinder can not dissipate heat in time, resulting in the transfer of heat from the cutter to the coffee powder during the grinding process, the coffee powder continues to be heated, the aroma dissipates quickly, and the oil structure is destroyed. After grinding, you can obviously feel that the coffee powder is warm, which is obviously higher than the ambient temperature, so that the boiled espresso no longer tastes thick and rich, while the flavor tends to be dull and easy to produce miscellaneous flavor. The thermal effect begins about five cups in a row, so experienced baristas will pause in the grinding to cool naturally, and the ration grinder has almost no such problems. The temperature of the single bean grinder is much lower than that of the Italian bean grinder, so the household bean grinder grinding, because there is no continuous operation and a large number of grinding, generally speaking, the household can almost ignore this problem.

Finally, it is recommended that friends who often drink coffee, it is still necessary to get a reliable mill, do not buy powder directly, a bean grinder to take good care of, use for five years will be no problem. Aiwo fragrance has been used for more than five years, and it has been insisted that it has never been ground for powder. if you drink good coffee, you must grind it and make it.

END