Does the filter paper smell or not? If there is a smell, will it wash the smell of filter paper into the coffee?

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When using hand flushing, some baristas must first rinse the filter paper with hot water and then put in the coffee powder in order to warm the filter cup and wash away the taste of the filter paper at the same time. But it is also found that many baristas, especially in Japanese cafes, often put coffee powder directly on dry filter paper and then make coffee directly.

Does the filter paper smell or not? If there is a smell, will the smell of filter paper be washed into the coffee?

The way to keep the filter paper dry when cooking those coffee beans that are not roasted deeply, the taste is relatively clean. Although first rinse the wet filter paper and then rinse, it is not really obvious to drink the taste of the filter paper, but by comparison, it is cleaner to keep the filter paper dry and less astringent.

It has been tried to directly hot water filter paper out of the water will have taste, especially a large bag of cheaper filter paper, the taste is more obvious. Therefore, the key should be how to make the melting into the coffee liquid taste less.

After brewing coffee, no matter how the filter paper is wet, so in the end, there will be more or less some filter paper taste mixed with the coffee liquid. I think the key is in which direction the water permeates at the beginning.

In addition, the ideal hand punching must let the coffee powder touch the whole edge of the filter paper and leave an average powder layer, this powder layer will ensure that the water is not retained from the contact surface between the filter paper and the filter cup, if the water flows down from this side, not only can not extract the coffee powder, but the extraction is really the smell of filter paper.

Wet the filter paper first to make the coffee liquid penetrate faster at first, and wet it first can also achieve the effect of warming the pot. In addition, some chemicals that may be left in the manufacturing process of the filter paper can be washed away first, because there are many materials and uneven quality of the filter paper on the market, some of which are bleached with fluorescent agent and hydrogen peroxide (H2O2). Even if there is no bleaching, it is risky, because the manufacturing process requires more processes to remove the smell of lignin.