Why do you steam hand-made coffee? do you know why hand-made coffee is so bitter but popular?

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Qianjie-A brief introduction to steaming and flavor of hand-brewed coffee

Hand-brewed coffee, as the name implies, is to pour hot water on the coffee powder and extract the coffee through filter paper and filter cup. the whole brewing process is about 3 to 4 minutes. Since the flow rate, direction, and temperature of the hot water are all controlled by the brewer, the flavor of the coffee brewed is different almost every time. Although the appliance is simple, it pays great attention to technique and experience.

Why should the hand be steamed?

Hand-brewed coffee is a process of flavor extraction and filtration at the same time, and the extraction takes place at the center of pouring water. The more water, the more extraction. Newly roasted coffee beans will produce more carbon dioxide, these gases are not conducive to the full contact between water and coffee powder to complete the extraction, so it is necessary to stew first to avoid uneven extraction of coffee powder and affect the efficiency.

What are the benefits of steaming?

1. In order to release the gas in the coffee particles, mainly carbon dioxide.

Generally speaking, the fresher the beans, the more bubbles will usually occur during pre-soaking. On the other hand, the coffee beans with deeper roasting degree will release more gas in the steaming process than the coffee beans with lower roasting degree because of less water content. (because the carbon dioxide content is higher)

2. When steaming, the coffee particles after the coffee powder exhaust gas can be discharged and absorbed more evenly, which can make the coffee extraction more uniform.

During steaming, the air between the coffee powder particles expands and releases a large amount of carbon dioxide, while a short gap layer appears between the coffee powder particles, which can provide more space for the hot water to pass through the powder layer during formal water injection.

If the initial step of hand flushing is less steaming, the extraction time will be longer, which may lead to excessive extraction, because the extraction time is longer, the dissolved substance is more, the taste may be more sour and irritating, or the mouth may be full of smells.

And hand-brewed coffee pays attention to the flavor of coffee from different places, also known as [regional flavor]. Africa has flower and fruit aroma and charming acidity; Asia has herbaceous flavor and rich taste; Central and South America has soft acidity and clean sweetness. Hand-made coffee is not bitter, the reason for the bitterness lies in the bean itself, as long as it is roasted too bitter will be obvious. Different people pursue different flavors, which is why hand-made coffee is so sought after.

Knowledge expansion: in the world of hand-brewed coffee, it is most important to restore the flavor of beans as much as possible, and every link can be full of creativity in order to achieve this goal, so there are many kinds of brewing methods. it's what we often call the hand-brewing genre.

In short: Qianjie is a coffee research hall, happy to share the knowledge about coffee with you, we share unreservedly just to make more friends fall in love with coffee, and there will be three low-discount coffee activities every month. The reason is that Qianjie wants to make more friends drink the best coffee at the lowest price, which has been Qianjie's tenet for 6 years!

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