Operation of hand coffee grinder-safe operation procedures for grinder

Operation of hand coffee bean grinder-safe operation rules for grinder

At the same speed, the number of teeth of the flat cutter determines the grinding efficiency. The larger the diameter, the more cutter teeth and the more efficient. Because the blade is longer, the tapered knife produces more impedance than the flat knife and requires a motor with greater torque to drive it. The actual grinding efficiency depends on the ratio of rotational speed to blade size (almost all hand grinding is a cone knife, a typical high torque, low speed design demand. The grinding speed depends on the hand.

Combined with life, it will probably be such a scene: today, the chef of the XOXO store wants to make 10 jin of spaghetti beef stuffing, as long as there are enough hands, the more knives, the faster the completion; if you want to finish faster, you need to change bigger knives, and your arms need to be stronger.

Let's go back to the actual product and make a simple conclusion: what do we get from the high-priced grinder? Better performance motors and larger size blades. These hardware must be related to grinding efficiency, but the impact on grinding quality is not so clear.

For a long time, the grinding uniformity has been regarded as the selling point of the bean grinder in the publicity materials of individual manufacturers. But think about it, in a st. According to the data released jointly by ali and mahlkonig, no device or blade form, including the ek43, can achieve absolutely uniform grinding.

No matter what kind of grinder is used, it is bound to generate heat by friction in operation. Most of the fine substances are highly volatile, the heat of grinding will increase the speed of volatilization, and mellow is lost in the air. After the coffee bean is ground, the cell wall will completely disintegrate, the area of contact with air will increase a lot, the rate of oxidation and deterioration will become faster, and the coffee will lose its flavor within 30 seconds to 2 minutes. Therefore, it is recommended not to buy coffee powder, it is best to buy coffee beans, grinding before drinking, grinding should be brewed as soon as possible. Before the invention of the bean grinder, people used stone pestles and bowls to grind coffee beans. A doctor once experimented with this ancient tool and compared it with a modern bean grinder. It is said that the coffee powder made from pestles and stone bowls is the most mellow.