How to distinguish between good and bad hand-brewed coffee-how to distinguish between good and bad coffee beans

How to distinguish the quality of coffee beans

There was a time when the coffee he brewed was surprisingly bad, bitter and abnormally sweet.

Looking around for faults, it turned out that the bottled water used by the drinking machine was a miscellaneous brand. Go to the supermarket to buy bottled purified water, this problem will be solved birds.

Domestic tap water quality is unstable, and the general water filter may not be pure after filtration, and may require a reverse osmosis filter (RO) filter (in Taiwan, RO filtration is used for ion reduction). As for the big bucket of miscellaneous brand water, that bucket probably hasn't been cleaned properly, and the taste is simply cheating. Many heated straight drinking machines also have secondary contamination of the taste.

Go directly to the supermarket to buy bottled drinking water to try, maybe the bitterness will be gone! Different bottled water such as baby XX, agricultural X, etc., although the taste is different, can also be accepted. It is said that a big X spring is very good ~

II. Filter paper

At one point, coffee became oddly bitter and mixed, and purified water was useless. Later, I found that this bag of filter paper was opened and placed in the newly renovated cabinet for some time.

There are two kinds of filter paper, bleached and log. Poor bleached paper will smell of bleach, poor log colored paper will smell of wood pulp and a lot of miscellaneous smell (and most likely recycled paper). Both bleach and log filters are acceptable for high quality paper, and bleached paper generally has less flavor than log color.

But even high-quality filter paper, if opened in a smelly or unsanitary environment, will affect the taste. In addition to Japanese brands, you can also choose reliable brands that use imported raw pulp in China and keep them properly sealed.