Before the invention of the coffee makers, coffee brewing was a simple process where water was brewed in a pot where the grounded coffee beans were placed in the and water was added, then placed in a source of heat. Once boiled, it was sieved and served. Jean-Baptiste de Belloy an ArchBishop from Paris advised coffee should not be boiled and hence the invention of coffee machines. There are three categories of these machines percolator coffee machine, espresso machine and electric drip machine. Percolator coffee machines use vacuum technology, the espresso machines use steam technology and the electric machines use drip technology. Coffee machines use the concept of either a filter paper or a metallic sieve to sieve the ground coffee after brewing. They have inbuilt heater to raise the boiling point of cold water and mixed with the coffee. After which the mixture is directed through a funnel to a pot then finally a tap where you can regulate the amount you want to out in the cup.
Percolator coffee machines
The first coffee machine dates back in 1818. Mr. Laurens designed it in Paris, France. It used the percolator to filter coffee sediments, up to the 19th century where James Napier used his engineering knowledge to design a siphon vacuum coffee machine that uses vacuum packing technology and a filter paper to separate the liquid from the solid as opposed to the original machine, which used perforated compartments to filter the sediments. However, the technology was cumbersome and complex, this leads to other inventors to create a less complex appliance with the same technology. The other
disadvantage was its inability to regulate the intensity of the coffee taste. A German housewife, Melitta Bentz used the filter technology and a mixture of already heated water to brew a mild coffee. This gave birth to Melitta Bentz, a coffee machine company that hit the market with a boom through maximum sales. They patented the technology to have full rights of the technology.
A French native called Louis Bernard Rabaut invented the first espresso machine, in 1822. In 1901, an Italian engineer, Luigi Bezzera invented and patented another espresso machine. His machine has become the symbol of all espresso machines for a long time until Achilles Gaggia in 1946 invented the first automatic espresso coffee machine using drip technology. The growth of the invention was halted due to the Second World War; after the recess, he continued to manufacturer the machine, which has become the current renowned brand for espresso machine under Gaggia company(http://bestsuperautomaticespressomachine.com).
Electric drip coffee makers
These machines use thermostat and siphon principle in boiling water and maintaining the heat. The coffee maker has two compartments one for cold water and the other for hot water. Heat is passed through an insulated hose triggered by pressure; the coffee moves through a filter and finally drips through a tap for use.
The market currently stocks Electric drip coffee makers more compared t the traditional coffee machines. They are simple to use and produce brewed coffee of desired strength. The insulated chambers and pipes keep the drink hot at all times.