If the beer is 4.000 years old of existence (it was then brewed in Mésopotamie), the beermat (beercoaster) bier is much younger : 1867 would be the date of birth of the first specimen out of produced paperboard with Luckenwald in Germany by the company of the Henschel brothers.
The ancestor of the beermat is the "saucer" which had two functions : placed under the choppe it protected the table and placed on the choppe it prevented the deterioration of beer by oxidation. It was out of porcelain, earthenware or out of tin.
The first patent relating to a "saucer" was deposited by Casalonga in Paris in 1879 : the saucer was then used to enter the number of consumption thanks to a meter fixed on it.
Other systems of accounting of consumption were then imagined, always using saucers. With each consumption, an additional saucer was piled up or one changed the saucer by another on which the total price of consumed beers was registered.
In 1892 is deposited another patent by the company Albert Faivre and Co : the material then used is the sponge because of its qualities of absorption.
The beermat can also have a "technical" function of safeguarding of the quality of beer : in 1898 is deposited by Ader a certificate of addition relating to the use of the flexible rubber whose pricipal interest is to deaden the choppe when it is rested on the table in order to avoid a harmful oxidation of gas.
The contemporary under-glasses of bier always find their origin in a patent deposited in Germany by Robert Sputh in 1892 whereas the first model of under-glass of bier polycolore appears,always in Germany, in 1900.
In 1903 in manufacturing Baden-Wurtenberg a company of the posts out of wooden recycles its falls in a paste with paperboard which is used for the realization of the beermats. At the end of 1930, two billion beermats is already produced each year. Currently, the annual production is approximately 5 billion under-glasses of bier including 3 billion for Germany...