Manual coffee three-stage water injection time reference sectional water injection method recommended

Friends who often read Qianjie to share articles are familiar with Qianjie's cooking method. The three-stage water injection used in the front street is a relatively simple and stable way to brew the flavor of coffee, and it is also very friendly to beginners.

But all the segmented types have a difficult point, that is, when to cut off the water and when to inject water; the node control of this segment is difficult for beginners to understand. In front of the street, try to use simple language to explain how to judge the timing of water injection.

Segmented water injection flow rate requirements are not so high, if the use of one-cut water injection, the flow is large, the powder layer will be raised, and the extraction time will be short. When the water flow is small, the powder layer is lifted low, and the extraction time is longer, which makes it much more difficult to control the time. The segmented type can adjust the total extraction time. For example, if the water flow in the front section is large and the powder layer has been raised relatively high, you can stop for a while and wait for the water level to drop a little before continuing to inject water. To understand the timing of reinjection after the water is cut off, we must understand the following two points. The first point: it is not recommended to wait for all the water to flow before injecting water; one is that reinjection after the flow is no longer an extraction process (it has been interrupted in the middle), and the temperature and time error of the powder layer will be very large; second, it is possible to deposit fine powder at the bottom, and the water behind will block it. The second point: Qianjie suggests that the height of the subsequent water injection powder layer is exactly the height of the previous water injection. If the subsequent powder layer is higher than the front, there may not be enough coffee powder at the edge of the filter cup to serve as a powder wall, so the water can easily slip away from the side ribs. If the subsequent water level does not reach the previous height, then the back section of the powder wall above will not be extracted, which is what we usually call uneven extraction.

Therefore, do not wait until the end of the flow before water injection and reasonable judgment that the subsequent water injection just reached the previous water level. The following three-stage type used in the former street as an example, the three-stage water injection has been cut off twice, but in fact, it is only necessary to judge the reinjection node once. The following front street will use 15g powder to demonstrate (different powder amount, some reference points are not the same). First of all, the first stage is the steaming stage, in which 30ml is injected into the steam for 30 seconds. Therefore, what does not need to be judged on the water injection node of the second section is to start water injection in 30 seconds.

The height of the water level should be controlled in the second stage of water injection, which will be related to the later water injection. If you are using the V60 of 01, Qianjie recommends that the water level be poured to the 1max 2 of the short ribs. The reference water volume is 120ml, and the reference time point for the completion of water injection is 55 seconds-1 minute.

The third stage water injection node needs to observe the settling speed of the water level (different beans, different grinding are different), and then add their own last section of water injection, flow rate, launching speed, to judge that the water injection has just reached the height of the second section of powder wall.

At this point, the water level drops to the short ribs, and a little more 0.5cm can be injected into the last section of the front street. the usual reference position for judging that the water level falls to "1 beat 2 from the powder bed to the powder wall", that is, to the short ribs down about 0.5cm. The last section is water injection 90ml, water injection circle as far as possible around a small circle, if the size of the liquid level around a large circle, it is possible to break through the powder wall. The reference time of water injection in the third section of Qianjie is 1 minute 10 seconds-1 minute 15 seconds, and the end time of water injection is 1 minute 30 seconds-1 minute 35 seconds. The time for the coffee to run out is 2 minutes-2 minutes and 10 seconds.

If it is divided into four stages of water injection, the logic is the same, follow the above two points. Of course, some friends will say, "46 flushing and cooking is to wait for the current to finish and then pour water, won't it push down your first point?"use the powder push method to push the powder wall a little higher, which will push down your second point." There are indeed many interesting ways to make hand-made coffee fascinating, and the way to share it on the front street is one that beginners can easily learn. "before you learn to run, you learn to walk."