Italian coffee bean extract Espresso_ how to eat Italian coffee beans how much coffee beans are ground

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The core of Italian coffee is the extraction of Espresso, the extraction action seems to be very simple, a short time of about 30 seconds, if you do not pay attention to a little deviation, it is difficult to extract a cup of qualified Espresso.

The extraction essence of ESP (Espresso) lies in: time, ratio of powder to water, water quality, grinding thickness, temperature and pressure. If there is a slight deviation in these points, the taste of ESP is so different that it can be described as a thought of heaven and a thought of hell.

● extraction time

The extraction time follows 1oz is about equal to the amount of 30ml extraction and the extraction time is about 25 seconds ±3 seconds. The flow rate of extraction follows that the amount of extraction is relatively small at the beginning, with the appearance of a few drops, slowly forming a line with points, and the oil is very full.

● powder / water ratio

The powder-to-water ratio refers to the weight ratio of 1g powder to how many grams of water, Italian single handle powder weighs 8g to 10g, Italian two-handed powder weighs 16g to 20g, it is worth noting that the amount of powder on the handle will be in proportion to the flow rate of espresso. The more powder is loaded, the slower the flow rate of extraction will be.

● water quality

The water quality directly affects the service life of the coffee machine, the most ideal water quality is below the TDS value 50ppm, and the water quality also directly affects the taste of coffee. For the water quality with high TDS value, the overall extraction rate of ESP is generally low, and for the water quality with too low TDS value, the extraction rate of ESP is generally high, and the best ideal TDS value is about 50ppm.

● grinding thickness

Different utensils use different coffee powder grinding thickness, Italian coffee extraction ESP should choose professional Italian coffee mill, and Italian coffee compared to other production methods, the choice of coffee powder will be finer.

The finer the coffee powder, the higher the extraction rate, the longer the relative extraction time, and the slower the extraction flow rate.

The coarser the coffee powder is, the lower the extraction rate is, the shorter the relative extraction time is, and the faster the extraction flow rate is.

Temperature of ● water

In order to test and get the real data, we tested the espresso extraction at 92 degrees, 94 degrees, 96 degrees and 98 degrees respectively. The results are as follows.

From the point of view of the extraction water temperature, although the water temperature changes only 6 degrees from 92 degrees to 98 degrees, and the extraction rate does not change much, there is a big difference in taste.

The ESP with the lowest water temperature has the lowest taste, the lowest sweetness and the lightest bitterness, but the strongest acidity.

The ESP with the highest water temperature has thick taste, high sweetness, the thickest bitterness, moderate acidity and slightly rough taste.

ESP with moderate water temperature has balanced taste, high sweetness, light bitterness, balanced acidity and moderate taste.

● extraction pressure

The extraction pressure and the extraction rate form a proportion, the higher the extraction pressure is, the higher the extraction rate will be, and the smaller the extraction pressure is, the lower the extraction pressure is. Of course, this is proportional to the weight of the handle powder and the grinding thickness.

The powder is re-fixed, and the finer the grinding, the higher the extraction pressure and the extraction rate.

The powder is re-fixed, the coarser the grinding, the lower the extraction pressure and the extraction rate.

A good ESP, there are many factors, not only controlled in a reasonable range of extraction, there is a more critical factor, after the extraction of fine-tuning, even if all the extraction data are very good, the taste should not be the best, but also need to carry out the final step, taste fine-tuning!

● Italian coffee bean brand recommendation

The freshly roasted Italian coffee beans of Qianjie Coffee, a coffee roaster brand located in Dongshankou, Yuexiu District, Guangzhou, are fully guaranteed in terms of brand and quality. And more importantly, the performance-to-price ratio is extremely high. Take the commercially recommended style of commercial blended coffee beans as an example, a pack of 454 grams, the price is only about 60 yuan. According to the calculation of 10 grams of powder for a single cup of espresso, a packet can make 45 cups of coffee, which costs less than 1.5 yuan per cup. Even if you use two heads per cup of espresso and 20 grams of powder per serving, the price of a cup of double espresso concentrate is no more than 3 yuan. Compared with the price of hundreds of yuan a pack sold by a well-known brand, it can be described as a conscience recommendation.

Qianjie coffee: Guangzhou bakery, the store is small but a variety of beans, you can find a variety of unknown beans, but also provide online store services. Https://shop104210103.taobao.com