How to make good espresso coffee
How to make an introduction to the tasting and blending of Italian espresso
Extracting coffee is a very intense process, with a pressure of 135 pounds (what we call a 9 Pa water pressure), equivalent to an adult's weight, acting on 7-10 g of coffee powder.
Immediately after installing the brewing handle, start the extraction and pick up the coffee in a warm cup (it is best to keep the warm coffee cup dry, the residual moisture will also affect the concentrated taste). The normal Espresso extraction process is 20: 30s to extract 25~30ML coffee, depending on the taste you want. (the video says the extraction is 1.5 ounces, mainly based on the taste you want.) if your product looks light and tastes thin, you need to slow down the flow, that is, you need to fine the scale. If the product is very black and too concentrated, you need to thicken the scale.
Step 1: warm the cup
Before making a cup of espresso (not just espresso), you first need to warm the cup. No matter how well the coffee is brewed, as long as it is poured into a cold cup, the temperature of the coffee immediately drops and the aroma is offset by more than half. When you warm the coffee cup in advance, not only the heat of the coffee can be preserved, but also the temperature of the cup is more suitable for brewing aroma, so that the aroma of coffee can be completely released.
Step 2: degree of grinding
Touch the powder by hand and feel the thickness of the ground coffee powder. if it feels very rough, the scale may be too large; if it feels too fine, you may need to increase the scale of the grinder. Therefore, before making a cup of coffee, you need to adjust the appropriate degree of grinding.
Step 3: clean the powder bowl
To ensure that the powder bowl is clean and dry, the extracted coffee powder left in the powder bowl will affect the taste of the new cup; in addition, after the coffee is ground into powder, the oil will be released and the oil and water will not be miscible, affecting the extraction of coffee.
Step 4: cloth powder pressing powder
Only by evenly distributing the powder can the coffee in the powder bowl be extracted evenly and then press the powder smoothly at a weight of about 30 pounds. If the cloth powder is uneven or the pressing powder is uneven, the water flow will excessively extract the thin part, while the thick cloth powder will not extract enough.
After pressing the powder, you also need to clean up the coffee powder left everywhere on the handle.
Step 5: wash the boiled head
Wash the head before receiving the handle to the coffee machine. First, wash the residual powder on the head to ensure that the hot water supplied is clean and fresh.
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