What is the acceptable chlorine concentration for checking low temperature dish machines?

The acceptable chlorine concentration for checking low temperature dish machines typically falls within the range of 50 to 100 parts per million (ppm). This concentration ensures effective sanitation, allowing the machines to properly disinfect the dishes and utensils being washed, particularly at lower water temperatures where effectiveness can be compromised. This concentration is crucial for preventing the growth of bacteria and ensuring food safety standards are met.

Options indicating concentrations outside this range may not provide the necessary sanitization. For example, concentrations significantly lower than 50 ppm may not be effective in killing harmful pathogens, while too high a concentration (above 100 ppm) could lead to potential damage to the dishes or cause chemical residues that may pose health risks. Thus, maintaining the chlorine concentration within the specified range is vital for operational efficiency and customer safety.