Coffee grinding should make coffee taste better on average.

In a previous article, we talked about the four main points of coffee bean grinding, which can be checked by interested friends.

Today, this article subdivides the first of the above four main points, that is, coffee grinding should be average.

Next, we will explain in detail the problem of coffee grinding to be averaged. The word "average" will run through the whole process of coffee roasting to coffee making. one of the big problems in roasting is how to "average" the size and water content of raw beans, while when it comes to coffee grinding, the focus is on how to make coffee grinding evenly.

If the coffee is ground unevenly, it will cause the coffee taste to be inconsistent and uncoordinate. no matter which step, the uneven situation must be reduced to the minimum, and the coffee without miscellaneous flavor, homogenization and balanced taste must be pursued. The uniformity of the ground coffee particles will directly affect the homogeneity of the coffee extract. In other words, uneven grinding of coffee will make the concentration of coffee liquid uneven.

So, how does the difference in the degree of grinding affect the taste of coffee?

In the process of coffee grinding, there is an immutable rule: the finer the coffee grinding degree, the stronger the bitter taste of the coffee cup, and the thicker the coffee grinding, the weaker the bitter taste of the coffee cup.

The reason is very simple: the coffee powder with fine grinding degree has a larger surface area and more extracted ingredients, and the more soluble ingredients in the coffee, the stronger the bitterness. On the contrary, the roughness of the ground coffee powder has a small surface area, the extracted ingredients are less, and the bitterness of the coffee from the cup is weaker. Of course, it is mentioned here that the lower the concentration of coffee, the weaker the bitterness. The bitter taste is weak, and instead, the sour taste of coffee becomes stronger.

Take this basic Law as compared with coffee grinding on an average. If coffee powders with different grinding degrees are mixed, the concentration of soluble components in coffee will be different, and both sour and bitter taste will be extracted. You can imagine what kind of muddy and smelly liquid this cup of coffee will become.

Therefore, the average grinding of coffee is one of the conditions to make our coffee tastier.