How to make coffee with 15 grams, 20 grams and 30 grams of coffee powder? How to make coffee for 4 people by hand

The standard amount of powder for a cup of coffee produced on Qianjie is 15 grams of powder, so when sharing the coffee, 15 grams of powder is used as the demonstration standard.

However, the amount of powder used to make coffee is very various. according to Qianjie observation, the more common ones are 12 grams, 18 grams and 24 grams in multiples of 6, which are mostly derived from the amount of powder used by one-person 120ml coffee liquid. There are also 15 grams, 20 grams, 25 grams and other multiples of 5, this way is a compromise according to the recommended amount of powder of the filter cup, that is to say, it is suitable for the cooking quantity of the type of filter cup, and it is also convenient to calculate the proportion of water. There is also a 16-gram brewing method, which has the advantage that it is more convenient to calculate sectional water injection at a ratio of 1:15. Different amounts of powder believe that friends who are accustomed to 15 grams of cooking will form a conditioned reflex (as do those who are accustomed to other amounts of powder). 15 grams of powder will be poured into the V60 filter cup of 01, which happens to be located at 1max 2 of the conical height. With the usual steady water injection, the state of the powder layer will have an inexplicable sense of familiarity. It is no exaggeration to say that even without electronic scales. Can also stably grasp the powder-to-water ratio.

Therefore, the first difference is that the performance state of the powder layer is different, in the case of little difference in the amount of powder (such as 15g, 16g), the performance of the powder layer does not change much, if the difference in the amount of powder is relatively large (for example, 15g and 20g). Then the change in the performance of the powder layer is very obvious. Using the same No. 01 V60 filter cup to cook 15g and 20g powder respectively, the powder layer of 20g will be higher than 15g, but there is no need to adjust the punching method and parameters, because it belongs to the range of quantitative variation. If you use the No. 01 filter cup to cook 25 grams, or in the same way, there is a high probability that the car will turn over. Because the reasonable capacity of this filter cup is 10-20 grams, if it exceeds the amount of powder, the filter cup cannot hold so much water.

Therefore, some adjustments need to be made to ensure that the flavor is the same as usual. Multi-stage water injection with a large amount of powder in a small filter cup is inevitable, in order to avoid excessive extraction caused by soaking for too long, therefore, Qianjie suggests that the grinding degree should be slightly thickened to reduce the risk of over-extraction. Take EK43s as an example, when cooking a large amount of powder, Qianjie will be thickened by 0.3 bars. The next is the problem of water injection, the amount of powder increases, the basic surface area of the powder layer also increases accordingly, so in order to adapt to the rhythm, the flow also needs to be adjusted accordingly. In fact, the fault tolerance rate of a large amount of powder will be much higher than the standard amount of powder, and it is very tolerant for water flow, circling, and so on. I think it is difficult because I am not familiar with the process. If you replace it with a suitable filter cup, you won't have so much trouble. Major manufacturers have also launched No. 02 filter cup suitable for large portions. Take No. 02 V60 filter cup as an example, it is suitable for 2-4 people and 20-40 grams of powder. There are no hardware restrictions when brewing. But it is important to pay attention to the judgment of time. Qianjie is saying that the extraction time of a cup of coffee is about 2 minutes, which is based on a three-stage brewing of 15 grams of powder.

Therefore, when the amount of powder increases, the brewing time will increase. According to the three-stage brewing method, the extraction time of 15 grams of powder is about 2 minutes, that of 20 grams of coffee powder is about 2 minutes and 20 seconds, and that of 30 grams of coffee powder is less than 3 minutes.

The change of the amount of powder should also control the speed of water injection. When the amount of powder is large, the flow should be increased appropriately, and when the amount of powder is small, the flow should be reduced. Therefore, some very fine-mouthed brewing pots are not suitable for cooking large amounts of powder (the advantages of hand mine pots are reflected).