Answer by  
                                                                                          LeheckaG (1826)
                                                            
                          
                          
                                                          Saltillo-tile is a very-porous variety of terracotta-tile,
 so your Saltillo-tile should have been coated with a quality surface-sealant when it was installed.
 
 When coated with a quality surface-sealant,
 a neutral-cleaner & damp-mop should be used to mop your floor.
 
 Periodically, an acrylic or polyurethane sealant & polish can be re-applied.