TABLE 1. Selected responses to question about concentration of chlorine sanitizer used by produce growers who use wash system in VA Wash System Hand wash* Sanitizer concentration 1 tablespoon sanitizer in 1 gallon of water capful of sanitizer to sinkful of water 1.5 cup sanitizer in 1 gallon of water (~ 10% solution) 1:10 Dump tank* 200 ppm 100-200 ppm 150 ppm 80 ppm 150 ppm Spray bar* 3 teaspoons of sanitizer in 5 gallons of water (~ 50 ppm) 7 teaspoons of sanitizer in 10 gallons of water (25-50 ppm) 4-7 ppm Flume* 150 ppm FIGURE 4. Methods produce growers use to measure concentration of sanitizer added to fresh produce wash water (n = 44). 144 Food Protection Trends May/June