Which is better than a flat bottom or a V60 conical filter bowl? Cake filter cup and hand-brewed coffee parameters sharing

If you pay attention to the new filter cups released in the past two years, it will not be difficult to find that the combination of flat bottom + large bottom hole has become a new trend. Many newly produced filter cups use flat bottom design with large bottom holes. So this made many friends curious, why are flat-bottomed filter cups with large openings so popular recently?

Advantages of flat-bottomed filter cups with large bottom holes. First of all, let's first understand the advantages of flat-bottomed filter cups! Qianjie also shared it before that the main difference between different shapes of filter cups is that they will make the structure of the powder bed different. What does it mean? It will change the distribution of coffee powder in the filter cup. Because the bottom of the flat-bottomed filter cup is flat and the upper and lower cross-sectional areas are relatively close, the thickness of the powder bed built by coffee powder in the filter cup is usually thinner than that of the conical filter cup. Then the distribution of coffee powder will be relatively even, at the center and periphery. The amount of powder is almost the same, rather than the thickness in the center and thin in the four directions like the conical filter cup. Qianjie shared it in "Why flat-bottomed filter cups are novice-friendly filter cups" that such a powder bed structure can ensure a relatively uniform extraction of coffee. Because the powder bed is thin and the powder amount is distributed relatively evenly, hot water can evenly cover the entire powder bed surface during brewing. Even if the proficiency in water control is not so high, the coffee powder can be extracted relatively evenly. In addition, flat-bottomed filter cups are generally lowered at a slower rate. Because many flat-bottomed filter cups are not designed with too many drainage methods, especially if there are no diversion bones at the bottom, hot water will spread evenly on the plane, which will slow down the seepage rate of hot water.

The slower drainage speed means that the time for hot water to stay in the filter cup is increased, which will increase the proportion of coffee immersion and extraction. Since the coffee powder will be soaked for a long time, the extraction will be more uniform, further improving The balance of extraction, the taste of the washed coffee will be more balanced, and the fault tolerance rate will be higher. This is the main advantage of flat-bottomed filter cups.

The meaning of the big bottom hole is like a bottomless handle. The bottom is not designed and a large hole is directly opened. One of its advantages is that it will make the water launch slower as mentioned above. But in addition, the reason why new filter cups have large holes is to increase playability during extraction. We can place any derivative products on their specially designed bottoms to change the extraction effect. For example, you can place a bottom with a multi-diversion design to increase the speed of launching, or place a small toy like Lili Pearl that can change the structure of the powder bed to adjust the distribution of coffee grounds. In short, there are more ways to play and more extraction possibilities.

So we can know that the combination of a large bottom hole + a flat bottom can make coffee extraction easier, and at the same time allow for richer gameplay. If you start with a flat-bottomed filter cup of this design, it should be noted that when using it without changing the structure of the powder bed, we had better adjust the parameters used during extraction, because it is a combination of immersion + drip filtration., too long extraction time is still prone to the risk of over-extraction.

For example, when the BABYO filter cup in front of the street is brewed in the same way, its extraction time will be about 30 seconds longer than that of the V60 filter cup. In order to reduce the risk of over-extraction, when using this type of filter cup, we can reduce the water temperature a little on the original parameters or appropriately adjust the grinding degree of the coarse coffee powder. Then let's use Qianjie Yejia Xuefei Guo Dingding from Qianjie Taobao Tmall flagship store to give everyone an example! This bean is produced from the very famous Guodin Cooperative in the Yega Shefi region. Because it grows at a high altitude, is washed with water and baked in medium and light, it has a very prominent and standard "Yejia Xuefei flavor", which is a favorite of many friends who continue to buy back! But at the same time, its density is also relatively high, and the water speed will be slower when brewing, so it is very suitable as an example for this sharing.

When using V60 to brew Qianjie Yejia Chevy Fruit Tintin, the parameters used by Qianjie are: 15 g of powder, powder and water ratio of 1:15, 75% to 80% sieving rate of No. 20 sieve, 92 ° C hot water, and brewing time is between 2 minutes and 2 minutes and 30 seconds. The taste of the fruit tintin washed out in this way will be mainly sweet and sour, with a light taste and fresh flavor. We can taste the flavors of white flowers, lemon, green tea, and some berries. However, when the current street uses a flat-bottom filter cup with a wide open bottom hole for brewing, it will be ground on the original basis, that is, the grinding degree of the coffee powder will be adjusted from 75% to 80% of the original No. 20 sieve. The sieving rate is adjusted to-70% to 75% of the sieving rate of No. 20 sieve. Then the remaining parameters remain unchanged and use multi-stage brewing. It is to steam with twice the amount of water as the powder, and then split the remaining hot water into 2 to 4 stages and inject it. Specifically, looking at the launching speed, the slower the launching speed, the more paragraphs there will be.

However, what you need to note is that if there are many sections, the water injection in the latter part, such as the third or fourth section, can be injected at a central point without circling. The purpose is to reduce extraction efficiency and reduce the risk of over-extraction. The front street is divided into three sections, and the last section is injected at a fixed point. The total time of this flushing method is 2 minutes and 41 seconds. The taste is very balanced, the sweetness is high, the taste is solid and full, and the flavor is equally outstanding. The flavors of white flowers, lemon and berries can be obviously drunk. It's just that relatively speaking, the levels will not be as rich as the V60, but each has its own advantages~

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FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。

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