Grinding-the difference between a hand grinder and an electric grinder Coffee grinder Scale thickness

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Grinding-hand bean grinder

Grinding is a key factor affecting the flavor of coffee. The grinding thickness needs to be combined with different brewing methods and different grinding degrees in order to brew a good coffee, and the grinding time is more important. The coffee is preserved in the way of ripe beans. Grinding before brewing can ensure that the coffee powder will not get the best flavor because of oxidation.

The average family does not buy an electric bean grinder like a professional coffee shop. If you brew coffee beans under the same conditions at home, you also use the same brewing method in a coffee shop, but you always get a different taste from what you drink in a coffee shop. The reason may not be because of poor technology, but because the quality of coffee grinding is different. The electric bean grinder used in professional coffee shops often ranges from 50, 000 to 100000 yuan. It can homogenize the grinding roughness and fineness of coffee powder. Small bean grinders used in families usually use hand grinders or electric spiral blades, which can not be compared with the grinding quality of professional bean grinders.

The common small electric bean grinder mostly uses the knife head of spiral blade, which has the advantage that the price is close to the people and does not need to spend time to grind beans by hand, but the biggest problem is to use the chopping method, which is easy to produce too much fine powder. if you use soaking type, after picking up the coffee dregs, you will see the fine powder of coffee paste like mud, which is in the process of hand flushing. The release of caffeine and sour bitterness is tens or more times of moderate grinding, and it is the source of miscellaneous and astringent taste, and it cannot be adjusted to grind it into a thickness suitable for all kinds of brewing coffee. I would recommend that if you don't want to spend thousands of yuan on a knife plate or cone knife electric bean grinder, you can spend hundreds of yuan on a manual bean grinder.

In fact, the use of conical cutterhead type hand grinder, coupled with the filter to remove fine powder, can greatly improve the grinding quality, this kind of bean grinder can also adjust the thickness, cooperate with the mark, and you can find the most suitable thickness for different cooking methods. Although the grinding degree of the hand grinder can not achieve the grinding degree of Espresso, it is used in hand punching, French pot and Philharmonic pressure. The way the mocha pot is brewed is not a problem.

Another advantage of the hand bean grinder is to cultivate patience. when you first learn to bake coffee, you share the coffee cooked beans with many friends, and the friends around you also begin to grind their own coffee and make their own coffee. when a friend was grinding coffee in the morning, the child lost his temper with his friend because of one thing. The friend listened quietly to the baby's cry while grinding the coffee. The friend just shook the coffee slowly. Enjoying the aroma released by the coffee, while watching the baby slowly stop crying, I suddenly felt that my temper had changed and I was more patient. if she had started scolding the child a long time ago, I thought her education of the child had become more temperament. is it influenced by my coffee?

The cutter head of the hand bean grinder is mostly in the form of a cone, and there is a distinction between metal and ceramic on the material, the strength of the metal will be greater, and the fineness grinding will be less stuck and unable to move. The advantage of the ceramic knife is that it will not rust even if it is washed directly.

We should pay attention to whether there are any leaves on the conical cutter head, and we can grind the coffee beans in the process of hand rotation.

When choosing and buying a bean grinder, you should choose to have the above picture to fix the thick and thin blades left and right. If only one side is fixed, the conical cutter head is easy to shake in the process of hand shaking, so the coffee powder is easy to vary in thickness and evenness, which is easy to affect the flavor of coffee. This is very important, whether the hand grinder is good or bad. It is absolutely related to whether the upper and lower cutterhead of the conical cutter head can maintain a fixed distance. If the lower part of the cutter head is connected with the body, it can keep the conical cutter head still. Some foreign-made hand grinders with good design cost more than some low-end electric cutter grinders, such as the German century-old brand Zassenhaus. The quality of the coffee is comparable to that of professional bean grinders, but the price is not close to the people. Unless you are very picky about the quality of coffee grinding, using a general bean grinder and a filter can greatly improve the quality of coffee.

If only one side of the adjusting piece is fixed, the conical cutter head is easier to shake when shaking, and the uniformity of grinding is easy to change.

If you usually use only one way of cooking, you will not need to adjust the grinding thickness, but if you use a moderately polished hand and need the medium thickness of the French pot, or the Philharmonic pressure or mocha pot of fine grinding, you will have to adjust the thickness, because this kind of hand bean grinder is stepless, and it is often found that the best thickness is found, and after changing the thickness, it is necessary to adjust the thickness. It is not easy to find the original thickness, so you can put a sticker on the adjustment piece, turn the adjustment piece to the tightest, and then turn 1 to 4, 2 to 4, 3 to 4, 1, 1 to 1 to do the test, so next time as long as you need to adjust the bean grinder, you can quickly find the thickness you need and set your grinding scale with the number of turns.

Of course, you can use multiple bean grinders like me, fix the thickness and label, use different brewing methods each time, and use a fixed bean grinder, you can save the time of adjusting each time, even in professional coffee shops. We usually buy multiple electric bean grinders to fix the thickness scale of each bean grinder, so as to avoid the time of adjustment and the coffee beans consumed by the adjustment. After buying more electric bean grinders one after another, only when we go camping can we use the hand bean grinder, and there is no need to grind the beans ourselves, because many children will be attracted by the bean grinders and queue up to grind coffee beans.

In the picture, the bean container of the hand bean grinder is in the shape of a cylinder, and there is another way of holding beans in the drawer type on the market. In comparison, the cylindrical bean container can easily pour out the coffee powder and is not easy to sprinkle the coffee. In order to solve the problem that the hand bean grinder is easy to produce fine powder, before brewing, you can use the filter used to make tea, sift the coffee powder first and sift out the fine powder. Usually sift out about 1-2 grams of fine powder, so when measuring coffee, you can have more than 2 grams. If you use a coffee spoon, you can have 2-3 coffee beans.

If there is a silver skin in the filter, the silver skin can be removed by blowing lightly, because if the baking degree is above medium-deep baking, the charred silver skin will scorch, resulting in the scorched smell of brewed coffee.

If you use the same grinder, the same coffee beans, the same brewing method, but the taste is obviously different, it may be because the coffee has expired or the grinder has not been cleaned, and the coffee oil will adhere to the knife head during the grinding process. Therefore, the knife head of the bean grinder must be cleaned regularly to remove the accumulated coffee oil. Coffee oil will oxidize over time, resulting in smelly oil, which seriously affects the quality of coffee. Therefore, regular cleaning of the coffee grinder is an important work to ensure the quality of coffee.