 |
Period: Beginnings of 1800
Functioning system: percolation or filter
The filter or percolation coffeepots represent the first step of the coffee machine evolution in the brewing of coffee compared to the previous boiling methodology.
These coffeepots become of common usage around 1817, spreading from France.
After being heated up into a separate pot, the hot water is poured into the coffeepot to filter (percolate) through the coffee powder contained in the cloth bag or in the metal mesh basket (filter).
The spirit burner positioned at the basement of the coffeepot has the only function of keeping the beverage warm until it is poured into a cup through the appropriate tap. |
 |
 |
 |
 |
| |
|
|
Period: late 1800
Functioning system: percolation or filter
Italian and French tinplated coffeepots with ceramic or wooden knob.
This type of coffeepot became very popular in France. Its filtering system prevents the coffee from boiling, so as not to alter the organoleptic properties of coffee. The coffeepot was so easy to realize and use that it could be made by using cheap tinplating, ceramic or other metals.
The coffeepot is divided into two parts: an upper part containing a filter at its basement and a lower part equipped with a pour spout and closure cap.
The ground coffee is put over the filter in the upper part and pressed with a pestle so that the water passes very slowly through the coffee powder, extracting its aroma. When the boiling water is poured over it, the process of filtering and infusion is further delayed by the resistance of the air captured in the lower part by the spout cap. After the coffee powder is completely soaked into water, the spout cap is raised or, alternatively, as set forth by one of the models, the throttle over the filter is open; in this way, the coffee filters through the lower container. |
| |
| |
|
 |
Period: 1940-1960
Functioning system: percolation or filter
French filter coffeepots made in ceramic, aluminum and chromium-plated brass. |
| |
|
 |
Period: 1920-1960
Functioning system:percolation or filter
Set of small single-cup filters made in Germany and France. A very simple and practical system to obtain a cup of coffee, but with no pretension of bodiness and infusion intensity. Also used for the brewing of teas and herbal infusions. |
| |
|
|
Period: 1900
Functioning system: percolation or filter
Simple tinplated filter coffeepot made in Germany with brass plate “Original ARNDT’SCHE Caffee – Aufgussmachine”. 4-cup capacity. This type of coffeepot - where the coffee powder was loaded onto the appropriate filter - was positioned over a pot and then filled in with boiling water. The original technical sheet accompanying the coffeepot sets forth the usage modalities and it states that with this machine you obtain the best coffee with the lowest quantity of ground coffee. |
| |
| |
|
 |
Period: 1902
Functioning system: percolation or filter
The nickel-plated coffeepot denominated “The Baker” was manufactured in Minneapolis, U.S., with an internal filter made in cloth supported by a metal mesh basket. Engraved in its body is the patent of 1902, even if this type of machine was already used in France since the early Nineteenth century. |
| |
|
