Final answer:
Produce wash can be re-used for multiple batches as long as concentration is tested and remains within the specified range of 0.75-1.0 oz/gal to ensure effective disinfection.
Step-by-step explanation:
Produce wash can be re-used for multiple batches of produce as long as the concentration is tested between batches and it must be within the range of 0.75-1.0 oz/gal. This is to ensure the disinfectant remains effective at eliminating harmful bacteria and prevents the spread of contamination.
The Association of Official Agricultural Chemists International (AOAC) has established that disinfectants must have consistent efficacy across multiple batches and uses, demonstrating no bacterial growth in at least 59 of 60 replicates. To ascertain this, use-dilution tests are vital, which manufacturers perform to meet the guidelines set by the Environmental Protection Agency (EPA).