It is found in some recipes for the composition of binders and for the realization of artificial gallery varnishes (beer and earth of Cassel). Giovanni Secco Suardo (1894) speaks of beer as a protective, to apply in several layers onto a pictorial film before the procedure of removing the crusts with the fire system. In this case, the beer would avoid that the alcohol be poured, successively ignited and possibly penetrated through the cracks.