Coffee bean grinder and grinder roller knife plane blade classification of coffee grinder blades

Which coffee grinder is the best?

If you want delicious coffee, you need to make sure there is a coffee grinder. It can be used to make coffee from freshly roasted coffee beans. The fresher the beans, the better the coffee will taste. If you keep drinking ground coffee products, it will be difficult to taste something better.

After starting shopping, you will find that there are many different types of coffee and ground beans to choose from. Including hand grinder, blade grinder and disc grinder. The hand mill requires you to grind the coffee beans manually, which is not the type that most people would like to choose. If you happen to like this one, make sure you have enough time and energy to grind coffee beans in the traditional way.

Blade is another common coffee grinder, though not the best, but the most common. This type of grinder is designed to grind well, but blade friction may lead to the burning of some coffee beans. In addition, this approach does not provide the best consistency.

Another type is the disc grinder. It is also divided into two different types, namely, flat wheels and cones. Cones are considered to be the best choice to buy. The speed of the disc grinder is slower than that of the blade. The ground coffee beans are fed into a hopper and brewed into coffee. This method can avoid the burning of coffee beans and ensure consistency. But the only drawback of this bean grinder is that it needs more cleaning, which may take some time. But if you want delicious coffee, this is the best coffee grinder you can buy.

Coffee mills are mainly divided into two types: manual and electric.

Manual coffee mill

Manual coffee mill is divided into 1-2 cups, 3-4 cups, 8 cups and so on.

Traditional one-cup hand mill

Electric coffee mill electric coffee mill is divided into two categories: blade type and grinding wheel type, blade type is mainly used for cheap family coffee mill, while grinding wheel type is mainly used for professional and commercial coffee mill. Blade coffee mill

Because the blade coffee mill uses the principle similar to the meat grinder, it uses a rotating blade to cut coffee beans at high speed, the knife head is easy to produce high temperature, and the ground coffee is suitable for immediate brewing and not suitable for storage.

The biggest advantage of blade coffee mill is that it is cheap and light. Take Cankun coffee mill as an example, it is generally about 70-80 yuan, and the imported one is no more than one or two hundred yuan.

One of the main disadvantages of blade coffee mill is that high-speed cutting is easy to make coffee powder hot and fragrant, another problem is that it is not easy to accurately control the particles of coffee powder, the fineness of grinding can only be controlled by time and feeling, and it is difficult to achieve complete consistency after multiple grinding. it's not good for cup testing.

The principle of professional coffee mill is basically the same as that of commercial coffee mill, which is ground by the cutter head machined by cast iron (or powder metallurgy). As the gap between the Yin and Yang cutters can be fine-adjusted, it is convenient to accurately control the thickness of the ground coffee powder.

As long as it has a stable coffee mill that can accurately control the thickness, it can become a professional coffee mill. The coffee mill of Flying Eagle, Zhenghuang and Pegasus, which is common on the Internet, is a professional coffee mill with good performance-to-price ratio, but the disadvantage is that the powder is not very uniform and stable.

If you want to test the cup of coffee, or if you want to make espresso, or if you are required to make coffee with a fine degree, a professional coffee mill is your best choice.

Commercial coffee mill, on the basis of professional coffee mill, increases the consideration. Because the electric coffee mill is driven by a motor, if the heat-resistant design is not adopted, the motor will soon go on strike. Commercial coffee mills usually need to consider making at least 10 cups at a time. In terms of 7-15 grams per cup, the amount of coffee continuously ground must be more than 250 grams (or half a pound, 225 grams), while the amount of coffee beans loaded at a time is usually more than 1 kilogram.

Source: Wen Honggang's blog