How much do you know about the powder press? how much does the espresso machine have?

I believe that every barista wants to have his or her own Tamper (or pressing powder hammer), because every time you make a cup of espresso, the coffee maker uses a powder hammer to flatten the ground coffee powder, thus increasing the extraction quality of the coffee (although there are individual practices that do not press the powder).

What's the use of the powder hammer? Why can it be so expensive? Why is there a difference between size? Why is there an one-piece pose or a split pose? Why is the base different? How do we choose the powder hammer?

1. About the role of the powder hammer:

The powder hammer has several important functions in making espresso:

The first is to press the ground coffee powder so that hot water can fully penetrate and flow through the coffee cakes.

The second is to keep the gap between the coffee powder consistent, because the coffee powder will begin to expand after absorbing water, which can easily lead to extraction imbalance.

The third is that the coffee powder in the handle is flattened to form a flat horizontal plane, so that the coffee powder can withstand the great pressure caused by the coffee machine extraction without being dispersed and affecting the taste of the extraction.

two。 Why are there different sizes of powder hammers?

In fact, there are two sizes of powder hammer, the small size is about 49mm to 53mm (4.0cm to 5.2cm), and the large size is from 57.5mm to 58.5mm (5.75cm to 58.5cm). The difference in specification is mainly due to the problems of household Italian machines and commercial coffee machines. Large powder bowls are commonly used in commercial use, and each coffee maker company has its own size, so the situation between 57.5mm and 58.5mm occurs.

General bias powder hammer manufacturers will be in 58mm, on the one hand, to facilitate production, on the other hand, the cost will be relatively low. If you ask for a more accurate size, the cost and technology will also increase, so the price will vary from dozens of yuan to 300 yuan. The powder hammer will also increase with the company brand, type of powder hammer, material, weight, design or limited edition and other influencing factors.

Well, from the above two main points, we can see that the main function of a powder press is to flatten and tamp the coffee powder. We can understand that the powder press has become a bridge between the barista and the coffee machine.