In the Colombario hall of the Certosa cemetery in Bologna, you can find the funerary stele dedicated to Bortolotti. It was created to commemorate Pietro, the inventor of Acqua di Felsina who died in 1860, and later used as a family tomb. The wall stele is topped by a bust depicting him with floral decorations and an inscribed plaque. At the base, a relief depicts Felsina, a symbol of the city of Bologna and its creation.