Period: 1810 - 1850
System: percolation or filter
Percolation or filter coffee pots are the first stage of development in the preparation of coffee compared with the previous, widely spread boiling method. They were commonly used around 1817 and were from France. The hot water, heated separately in another receptacle, was poured into the coffee pot to filter (percolate) through the ground coffee contained in a fabric bag or fretworked metal basket (filter). The spirit burner, or brazier for charcoal, set at the base of the coffee pots was used to keep the drink hot. The coffee was poured into the cups through the special tap.
Period: 1890 - 1900
System: percolation or filter
French and Italian tinplate coffee makers with ceramic or wooden knobs. This kind of coffee maker became very popular in France. The filter system prevented the coffee from boiling, as this would alter its organoleptic characteristics. Moreover, this coffee maker was easy to produce and use, and indeed could be made either in cheap tinplate or other kinds of metal or of ceramics. The coffee maker is divided into two parts: an upper part with a filter at the base, and a lower part with a spout and lid. The ground coffee was placed onto the filter in the upper part and pressed down using a pestle so that the water passed through the coffee very slowly and extracted all the aromas. When the boiling water was poured over it, the process of filtration and infusion was further delayed by the resistance of the air trapped in the part underlying the lid of the spout. When the ground coffee was entirely impregnated with water, the lid of the spout was raised or, as illustrated in one of the models, the ‘throttle’ above the filter opened and the coffee filtered into the underlying container.