What is the standard principle of gold cup theory for coffee extraction? what is the relationship between the extraction rate and the concentration?

Does 1:15 powder necessarily taste better than brewed coffee?

The powder-to-water ratio generally recommended by coffee shops is 1:15, and the powder-to-water ratio recommended by the American Fine Coffee Association is also between 1:15 and 1:16, because in theory, the coffee brewed by this powder-to-water ratio falls right on the popular flavor concentration.

But under the actual drinking experience, it does have a different feeling. Generally speaking, coffee lovers transition from instant coffee to fine coffee, so the concentration of drinking coffee during the instant coffee period is generally very high, and the 1:15 when they come into contact with fine coffee will be a little light.

So for those who have just come into contact with boutique coffee, Qianjie Coffee suggests that you can first choose some coffee beans with dark chocolate, herbs and smoke, such as those from Honduras, Guatemala, Brazil, Indonesia and other producing areas. This is closer to the taste of instant coffee.