FRP finishes can be either smooth or embossed. Testing has shown that either finish performs (cleans) as well as a #3 finish on stainless steel. Tests for bacteria and mold growth indicate that FRP does not support the growth of either.
An embossed finish has the added benefit of providing a more scuff resistant surface than smooth.
Independent testing by Mirinz Laboratories of an embossed FRP finish versus a smooth finish at a meat processing facility indicated that "Over the four week period, bacterial counts at all levels (eye, waist and knee) were generally within the Marinz guidelines and found to be no higher in bacteria counts than that of the existing stainless steel and smooth plastic panels."