16 15 14 14 13 12 Percent Responding (n=19) 12 11 10 10 9 7 7 6 6 4 8 8 8 4 2 0 6 4 4 6 4 3 2 2 1 1 0 0 Floors 0 0 Drains >2× Per Day 0 0 1 0 Product contact surfaces 0 0 Conveyors 2× per day 1 0 0 0 Walls 1 1 0 0 Ceilings 1× per day 0 0 Utensils 0 0 Cooler coils, condensor, etc Coolers 1× per week Other FIGURE 6. Frequencies reported (count of respondents indicating) of facility cleaning and sanitation activities for food contact and non-contact surfaces. TABLE 6. Sanitizer classes utilized for sanitizing of facility surfaces reported by respondents, by surface type Sanitizer Class Usage by Site (% of facilities using indicated sanitizer class) (n) Floors (n = 19) Floor Drains (n = 19) Product Contact Surfaces (n = 18) 89.5% (17) 94.7 (18) 77.8 (14) QAC 68.4 (13) 63.2 (12) 61.1 (11) Peracidb 10.5 (2) 10.5 (2) 11.1 (2) ASC 5.3% (1) 5.3% (1) 5.6 (1) 180 °F Water 5.3% (1) 5.3% (1) 5.6 (1) Chlorinec a QAC: quaternary ammonium compound. ASC: Acidified sodium chlorite. Includes peracetic acid and peroctanoic acid sanitizers. c Includes hypochlorite salts, chlorine dioxide (aq.; gas), and other chlorine-type sanitizers (excluding acidified sodium chlorite). a b 58 Food Protection Trends January/February