Do you know the origin of hand-brewed coffee and hand-brewed coffee?

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For centuries, people around the world have been adding water to pots, adding ground coffee, and heating pots over an open fire to extract coffee, just like traditional Arabica and Turkish coffee. Then, around 1810, in Europe, a "percolator" was invented, which made coffee by circulating boiling water, and later became a standard method of extracting coffee. As a result, there is the birth of the coffee machine.

But in the 20th century, a German woman named Amalie Auguste Melitta Bentz was so dissatisfied with the taste of the coffee made by the percolator and the earthy coffee powder left in the bottom of the cup that she began to try another brewing method.

She uses blotting paper with a jar pierced with nails to filter the coffee. Compared with the filtered coffee made by the percolator, this coffee is less bitter and, most satisfactorily, does not contain any impurities. Later, in June 1908, Amalie applied for a patent on filter paper and founded Melitta. In 1909, Melitta and her husband Hugo showed off their filtering invention at the Leipzig fair, and there is no doubt that their product was a great success. In the 1930s, Melitta introduced the fan-shaped filter cup we are familiar with today. By improving the extraction of coffee, this design improves the quality of each cup of coffee. It is reported that the first filter cup on the market had eight outlet holes at the bottom, but the design was changed into a hole in the 1960s.

In 1941, German chemist Peter? Schlumber invented the classic glass hand punching pot Chemex. Peter is said to have an eccentric personality dedicated to improving the efficiency and fun of everyday objects. He has applied for more than 300 patents, including cocktail bartenders and cars. Because of his specialty in chemistry, he was well aware of the way coffee was extracted and invented thick filter paper, which his partner said could make coffee less bitter, oil-free and residue-free. In 1959, people thought that this special hourglass-shaped coffee maker, Chemex, was one of the best inventions in modern times, and it also took practicality into account.

There is a circle of wood on the neck of the glass kettle so that the user can get the hot pot, and the leather rope can prevent slippage. Glass pots are conceived from laboratory glassware to prevent the absorption of odors or chemical residues and affect the finished products after cooking. In addition, there are many popular Japanese hand flushing devices. In 1921, Hario, a chemical glass equipment company, was founded in Tokyo. They invented the V60 filter cup to improve the filter support of the time.

Like other utensils, this conical filter cup is placed on the upper edge of the cup or glass pot to support the filter paper, but it is not that simple.

The taper of this filter cup is 60o, so the water will flow to the center of the coffee powder, prolonging the contact time of the powder. It also has a large hole that reduces coffee filtering time, while other similar appliances have only a few small holes. The V60 filter cup also has spiral grooves to circulate the air, thus allowing the coffee powder to expand as much as possible.