The extraction principle of espresso: how much coffee is the ratio of water to powder and how to brew espresso beans

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Ratio of Italian coffee powder to water

Simply put, this ratio is how much coffee beans and water you use to make coffee.

The unit of measurement is more than how many grams of coffee versus how many milliliters of water. In the general environment of brewing coffee, we will regard grams and milliliters as the same. So, if you use 15g of coffee beans and 240ml of water for brewing, your coffee water powder ratio is 1:16.

There is a theoretical standard, that is, the so-called golden ratio is 1:18, but in my understanding, most of the baristas I have communicated with use 1:14-1:16 powder.

As for the espresso powder ratio, it means a little different. The ratio we generally discuss is the weight of the coffee beans to the liquid in the extraction cup, probably because these two data are easier to measure. Anyway, for example, if you put 19.5g ground coffee powder into a filter handle (portafilter), and the espresso pulled into the cup weighs 39g, your powder-to-water ratio is 1:2.

As we often emphasize, taste is a subjective subject, and each coffee bean is different, so as long as you remember that the more water, the higher the amount of extraction (that is, the more dissolved matter will be). But the thinner the taste of the final product (the extraction rate is always decreasing), you can easily adjust the powder-to-water ratio that best suits your taste.

The purpose of the ratio of water to powder is to get a cup of coffee with the right concentration and extraction rate, and the concentration and extraction rate are the most direct tactile feeling at the entrance (of course, it is also possible that the coffee with good concentration and extraction rate is not good; but the coffee with the wrong concentration and extraction rate must not taste good. So it can also be said that the right water-powder ratio is to help achieve a good concentration and extraction rate, but also a relatively easy way to get a good cup of coffee, as well as one of the ways for practitioners to standardize. As professionals have said, the ratio of water to powder is not enough, and there are many other factors that will affect your extraction rate and concentration, especially the bean grinder and water temperature.

Spaghetti coffee water powder ratio

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