Detailed illustration of how to fold hand coffee filter paper

Detailed illustration of how to fold hand coffee filter paper

Kalitta,melitta,hario filter paper is of very good quality and can be selected. It is recommended to wet the filter paper, but also for the thermal insulation effect of the filter cup filter paper.

Bleaching or not first shows the biggest visual difference. The white filter paper we often use is bleached. In the past, people thought that bleached filter paper used chlorine chemicals, so there were not a few people who preferred unbleached filter paper. That's why most people thought that white filter paper must be washed with water.

1. Grind coffee beans, because hand-made, coffee bean powder should not be ground too fine (20g beans = 300ml original solution).

two。 Fold the filter paper into a triangular funnel.

3. Put the folded filter paper into the filter cup and wet it with hot water. on the one hand, it can remove the smell from the filter paper, and on the other hand, it can warm the cup to prevent coffee from suddenly turning sour (note: pour out after filtering water).

4. It's steaming. Grind the coffee and pour it into the filter paper. when the hot water cools, pour hot water from the top of the filter cup and the water will not pass the powder.

5. Continue to inject water, draw a circle from the center to inject, the flow is fine and slow, and the extraction is sufficient.

6. When you reach the amount of coffee liquid extraction, remove the filter paper immediately.

In two cases, the expansion rate is not obvious or even no reaction during steaming, which is freshness and baking degree respectively. First of all, there is a certain amount of gas in the fresh coffee powder, the gas in the coffee powder will be discharged slowly over time, and the coffee powder absorbs some moisture in the air, resulting in less gas, so stale ripe beans are less likely to expand or even unresponsive. Second, the shallow roasted beans are less likely to expand too violently, because the lightly roasted coffee beans are denser, so the overall void is not as much as medium or deep roasting, so it contains less gas.

For the coffee powder that has been steamed, the coffee powder will first dissolve some high concentration coffee liquid because it seeps into some hot water, so it is easier to extract some soluble substances of coffee during the second water injection. At the same time, some gases in the coffee powder have been discharged, so it will not be disturbed unnecessarily by gas discharge during brewing and extraction, so as to achieve stable and uniform extraction.