A good cup of pour-over coffee is inseparable from good utensils.
Suppose you had a good bag of beans,
What equipment can be used to grind them into uniform particles,
What about coffee powder that meets the extraction requirements?
That's right, you need a good grinder!
Why do you need a grinder?
From the moment the coffee beans are ground, about 70% of the carbon dioxide will gradually volatilize, and the remaining 30% will also slowly volatilize. Carbon dioxide can effectively protect the coffee beans from oxidation, so most pour-over coffee players will Choose to grind your own instead of buying pre-ground coffee. In this way, the original flavor of coffee beans can be tasted in the coffee to the greatest possible extent. Therefore, if you want a good cup of manual pouring, you need a bean grinder as standard.
What are the criteria for choosing a grinder?
Consistent grinding shape: each coffee powder has the same shape as possible, that is, each coffee powder has the same shape and size, so as to ensure that the extraction progress of all coffee powders is consistent.
Low fine powder rate: Coffee beans will produce some very fine powders during the grinding process. These powders are very easy to block the water flow during the extraction process, resulting in uneven or over-extracted extraction. Generally, in hand-brewed coffee, the diameter is less than 0.1mm. It is called fine powder. The less fines, the better the grinder.
What types of grinders are there?
Grinders are divided into two categories, namely manual grinders and electric grinders;
Manual bean grinder: The price is lower than that of electric machines, and the grinding process has a strong sense of participation, but because it is difficult for people to apply force completely and evenly, it may cause uneven thickness of coffee beans. Most manual grinders use conical grinding blades .
Electric bean grinder: The price is relatively high, and the coffee powder particles grinded by the machine at a constant speed are uniform and regular, and the efficiency is high. According to the type of blade, it can be divided into conical knife, flat knife, round blade and ghost tooth.
There are manual and electric coffee grinders.
Grinding methods include cutting and grinding. When cutting, the metal blade chops the coffee beans. The principle of grinding is the same as that of a stone mill, grinding powder while rolling. If you only need coffee grounds for one or two people, choosing a manual grinder is enough. If the quantity is large, it is better to buy an electric one, which can save a lot of time and effort. It is best to choose a style that is easy to clean and easy to take care of. A small grinder may not grind evenly, and the fragrance will naturally be reduced. If you are looking for a professional fragrance, you can start with a mini commercial grinder. Definitely works well, but a bit pricey.
