Coffee grinder selection knowledge Hand grinder
For more than 100 years, the design of the hand-operated bean grinder has hardly changed, and even the latest models tend to be classical and elegant. This kind of bean grinder needs to rotate the rocker by hand, turn the iron sharpening knife inside, crush the coffee beans into a fine powder and drop them in the box below. Strictly speaking, the internal sharpening knife is not a knife, because it does not have a sharp blade or sawtooth, but a tapered grinding iron with an angle. It grinds the coffee beans by rolling, which is similar to the ancient mortar and pestle, and can best retain the aroma of the coffee.
Although it is a bit hard to use a hand bean grinder, and the speed is not fast, it can grind coffee powder with uniform particles, and the friction temperature during grinding is the lowest, so it is not easy to destroy.
The delicious coffee is very suitable for drip filtration and drip brewing. In addition, the hand-held bean grinder makes the least noise and has always been a favorite of coffee brewers.
The hand-operated bean grinder usually has a ring-shaped knob between the rocker and the main body, which can grind down to produce finer coffee powder. this bean grinder can grind coffee powder of medium to fine size, but it is impossible to grind very fine powder. so it's not suitable for grinding espresso powder.
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Types of coffee utensils sawtooth bean grinder and matters needing attention in selection and purchase
There are two types of sawtooth grinders: one is a planar sawtooth knife and the other is a three-dimensional conical sawtooth knife. (1) the plane type of sawtooth cutter consists of two annular blades, and the circumference is covered with sharp serrated teeth. After starting, the coffee beans are brought between the blades and are instantly cut and crushed into fine particles. In the case of household appliances, flat sawtooth grinding beans
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Selection and purchase of coffee grinding utensils knowledge propeller bean grinder
There are different brands and models of bean grinder, and the grinder which can adjust the thickness of grinding bean is ideal. When grinding with a bean grinder, don't grind too much at one time, just enough for one use. Because the longer the bean grinder is used at one time, the easier it is to heat up, which indirectly causes the coffee beans to be heated and leads to the loss of aroma, thus affecting the aroma of the coffee. This kind of bean grinder is rotated by motor.
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