Coffee filter paper Coffee filter paper classification how to choose coffee filter paper

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Important supplies for hand-brewed coffee: filter paper plays an important role in filtering and controlling flow rate, and there are two main kinds of filter paper on the market: White bleached filter paper, wood-colored unbleached filter paper.

Should the filter paper be bleached or unbleached? The following two points are suggested for consideration:

1. What exactly does bleaching filter paper use to bleach? In the past, many people chose to use unbleached filter paper for fear that the bleach (sodium hypochlorite) left over from the bleaching process would flow into the coffee with the brewing process, causing chronic poisoning or cancer. It has an adverse impact on health, but in fact, the filter paper of large brands is no longer bleached with traditional sodium hypochlorite.

Instead, acid bleaching and enzyme bleaching are used to reduce health concerns. The so-called acid bleaching mainly uses hydrogen peroxide (hydrogen peroxide) for bleaching, while enzyme bleaching uses biological enzymes. Both bleaching methods have little impact on human health, which can be said to be quite safe bleaching methods.

At present, larger brands such as HARIO, KALITA, KONO, Sanyo … Both acid bleaching and enzyme bleaching are used, one of which is both bleaching methods, marked on the outer packaging of filter paper, for consumers to choose from, it can be seen that there are basically no health concerns about buying bleached filter paper from big brands.

However, if you want to buy cheaper filter paper, it is recommended that you should at least know the bleaching method to determine whether it is acid bleaching or enzyme bleaching, which is safer and less risky. If you are not sure, the seniors advise you not to take advantage of petty gains.

After all, there are a lot of black-hearted goods in this day and age, and no one can guarantee what they will eat.

two。 The problem of the smell of unbleached filter paper as long as it is a filter paper made of pulp, if it is not bleached, it must have more or less pulp smell, and the filter paper must be washed with water to remove the smell.

However, for some thicker unbleached filter paper, it takes a lot of water to clean the smell of the paper. It is not environmentally friendly and makes people feel upset when washing filter paper, which is quite unreasonable.