The importance of coffee filter paper, the comparison of coffee filter paper bleaching filter paper vs unbleached filter paper vs filter

We are die-hard fans of hand-brewed coffee, and we are also keen on experiments. Therefore, we decided to join hands with the coffee teaching team to have a discussion on coffee filter paper to see if the choice of coffee filter paper would affect the result of coffee extraction. Here is a spoiler: it will really affect!

First of all, with regard to this experiment, one of our main purposes is to find out how filter paper affects the flavor of coffee. For the purpose of this experiment, we know that we need to exclude brewing methods and do experiments on filter paper alone.

In our first experiment, we filtered the water into the filter paper to observe the taste of the filter paper. Then pour the water into the filter paper and filter it again to see how the infiltrated filter paper tastes and is extracted with coffee during brewing.

Barista's small step: be sure to infiltrate your filter paper before making coffee! In this way, you can first filter out the smell and dust of the filter paper itself, and warm the filter pot.

The second experiment we conducted was to taste coffee brewed from different filter papers. So we brew coffee with filter paper in the same way and taste the difference in taste.

Bleached filter paper vs unbleached filter paper vs filter bag

Chemex Filter

The Chemex filter paper itself is the driest and the most unchanged. The coffee extracted with Chemex has a low consistency, can bring out the aroma of flowers, and the taste is a little dry.

Melitta Oxygen Bleached

This bleached filter paper has a little residual taste when it is infiltrated. The overall consistency of the extracted coffee is thick and has no significant paper flavor.

Melitta unbleache Natural

This unbleached filter paper has a significant woody sweetness in both the primary and secondary infiltration. The extracted coffee has the aroma of filter paper and a very marked dry taste.

Hario V60

This filter paper smells like grass when it is first soaked, but it tastes dry when it is soaked twice. The extracted coffee has a bright and refreshing fruity flavor.

Sock Cloth Filter

This filter bag has the strongest smell, so let us tell you: it doesn't smell good. The extracted coffee has a marked aftertaste like a wet wool coat; some say this one reminds him of a second-hand store in Eugene Oregon.