Grinding scale of hand-made coffee beans Flavor description of taste manor varieties

Grinding scale of hand-made coffee beans Flavor description of taste manor varieties

If the coffee powder is too thick and the hot water flows too fast, it is difficult to extract the aromatic substances from the coffee. If the coffee powder is too fine, the filter is easy to clog, resulting in water and powder soaking time is too long, water flow in the powder layer can not flow evenly. Resulting in uneven extraction and excessive extraction, coffee will appear bitter, astringent taste. So hand-brewed coffee is suitable for moderately ground coffee powder.

Personally, I think there is a small principle of hand punching--

When the flow is kept to a minimum, water can be injected from the middle of the layer, creating uniform bubbles rather than flowing around from the surface of the layer. Only in this way can we ensure uniform extraction.

What is moderate grinding? the general metaphor is granulated sugar. To be more specific, when you pinch your fingers, you can see that the coffee is polygonal, not flour.

Grinding degree of siphon kettle: moderate

Generally speaking, the extraction time of the siphon pot is about 1 minute and the temperature is about 92 degrees.

If the coffee powder is too fine, it will not only extract too much, but also clog the catheter when the coffee liquid is refluxing. If the coffee powder is too coarse, it will make it difficult to extract aromatic substances still hidden inside the particles, unable to touch and extract with hot water, and the brewed coffee will not have enough aroma. (the Belgian pot is the same as the Belgian pot) so generally speaking, the fineness factor press, which is also moderately ground, uses the most direct coffee extraction principle-soaking + filtration. So that the coffee extract of oil and aromatic substances can smoothly pass through the filter, unhindered. So need medium coarse grinding, otherwise the coffee grounds will pass through the filter hole, so that the coffee has a muddy taste. And too fine powder will lead to excessive extraction and bitter taste.

What is medium coarseness, is a little thicker than the hand, is also a clear polygon particles, do not be so thick as to see a large round bean surface.