How long is the best time to brew coffee? Good to drink. Coffee beans are hand-brewed and ground. Water temperature ratio parameter tutorial

I remember that in a movie, Takeshi Kaneshiro's character was so picky about food that even if he made an instant noodle, he had to hold a stopwatch and strictly abide by the "Scientific instant noodle law."

Photo: stills of the movie "like you" and time is also crucial for hand-made coffee. It can be said that today's baristas are no less devoted to making coffee than Takeshi Kaneshiro is to instant noodles. How to calculate the time? the electronic scale is one of the necessary brewing appliances for hand-made coffee. The electronic scale has the function of weighing and timing, and the weighing function provides accurate data for the amount of coffee powder and the ratio of powder to water. The timing function is to prove how well this cup of coffee is made.

Although we all know the importance of timing, there are differences on the node where timing begins. Some people like to start timing at the moment of the first injection, while others prefer to press the timing button at the end of the first injection. Qianjie believes that the extraction of coffee begins as soon as the water comes into contact with coffee powder, and if you inject water first and then start timing, it is actually selectively ignoring the extraction effect of water injection. If everyone has no objection to the steaming time of 30 seconds, there is a difference in timing, so that the actual steaming time of the latter is more than 30 seconds.

Therefore, Qianjie suggests that the timing should start at the node where the water is in contact with the coffee powder, that is, it needs to be timed when the water is injected.

What is the effect of time on coffee? For the soaking type of coffee brewing, the short time will be light, the taste will not come out; a long time will be astringent, strong, bitter. Of course, it takes a difference of more than 30 seconds to form such a strong contrast. But the form of hand-brewed coffee is a process in which you pour water into the coffee powder and the water drips into the next pot through the coffee powder layer. In other words, you can directly control the time it takes to inject water, but you can't accurately control the time it takes to complete the drip, and the error is normal within 5 seconds.

The time it takes for water to flow into the next pot in the filter cup is related to the grindability of coffee powder, the mode of water injection and the structure of the filter cup. Coffee powder is the key factor to block the flow of water, the finer the powder, the stronger the resistance, the slower the flow rate, of course, it will go in the direction of bitterness. The thicker the powder is, the smaller the resistance is, and the faster the flow rate is. Before the coffee is fully extracted, the water will flow away and go in a light and sour direction. The way of water injection is relatively easy to control, the more the number of segments of water injection, the longer the brewing time, the former street coffee three-stage brewing mode, the brewing time is about 2 minutes. The selection of filter cups with different structures will also lead to different times. Like the V60 filter cup commonly used in the front street, its spiral diversion ribs can make the water flow in the same direction, achieve uniform extraction and diversion, and enrich the layering of coffee. The short rib design of another Kono filter cup used in Qianjie can well extend the extraction time without clogging, making the coffee more mellow. Therefore, the use of a suitable filter cup to brew coffee will also have a great impact on coffee flavor.

So how long does it take to make a cup of coffee? In the normal way of brewing (very fine powder flushing, drip method, these are not discussed), if the amount of 15g powder is less than 1 minute and 30 seconds, the coffee flavor will not be completely extracted and will show a light and water feeling. More than 2 minutes 30 seconds, the bitter taste is easy to wash out, the former street products, the vast majority of coffee beans extraction time between 1 minute 50 seconds-2 minutes 10 seconds, its flavor performance is the most suitable to taste.

If for students who want to improve their hand-brewing coffee skills, between 1 minute 50 seconds and 2 minutes 10 seconds is the test standard with a relatively high fault tolerance rate, if the time is not within this range, the taste of coffee does not meet your expectations. Try to adjust the grinding or water injection method to let the extraction time reach this range.