Choice of coffee machine powder press-how to choose a household coffee machine

Choice of coffee machine powder press-how to choose a household coffee machine

1. On the function of pressing 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 to flatten the coffee powder in the handle 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.

2. Why there are different sizes of powder hammers

In fact, there are two sizes of powder hammer, the small size is about 49mm to 53mm (100px to 130px), the large size is between 57.5mm and 58.5mm (143.75px to 1462.5px), the difference in specifications 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 there is a situation between 57.5mm and 58.5mm.

Generally speaking, the manufacturer of powder hammer will be in 58mm, on the one hand, it is convenient to produce, 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, shape, 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.

1. Flat: the most common powder press with a flat bottom at the bottom.

2. Euro Curve: the bottom of the powder hammer is arc-shaped, and the highest height difference at the edge of the powder hammer is 3.355MM.

3. C-Flat: it belongs to the combination of Euro Curve and Flat. It does not have a curved bottom like Euro, but a pink hammer like Euro has a height difference. The bottom is a horizontal flat bottom, but the edges are curved and there is a height difference.

4. Ripple: it is difficult to control, the bottom of the powder hammer is wavy.

5. C-Ripple: improved on the basis of Ripple, the pink hammer is made into a flat bottom at the edge, there are several raised concentric circles in the center, and the pressed powder center is wavy and the edge is horizontal.

6. AmericanCurve: relative to the bottom Radian of Euro Curve, the height difference between the highest point of the arc and the edge of the powder hammer is reduced to 1.661MM.