Handling Turbidity in Postharvest Wash Water

Added by Phillip Tocco • Last updated May 19, 2021
Author: Phil Tocco
Other Author(s) and Affiliations: None
Type: Fact Sheets
Topic: General (PSR), Produce Safety Rule (PSR), Ag Water (Postharvest)
Language: English

Turbidity in postharvest wash water is one of three major factors that need to be monitored to ensure effectiveness of sanitizer in wash water. Along with the wrong pH and inadequate free sanitizer, excessive turbidity may hamper efforts to effectively maintain sanitary postharvest wash water. Excessively turbid water can be from either from organic sources (plant particles and “juices”) or inorganic sources (soil). Excessive turbidity will consume the fast-acting oxidizers and interfere with testing of sanitizer levels, making it ineffective. In addition, the Food Safety Modernization Act (FSMA) also requires growers to monitor turbidity in postharvest wash water.

 


 


Produce Safety Alliance (PSA) Website
Added by Elizabeth Newbold • Last updated October 12, 2022
Topic: General (PSR); Produce Safety Rule (PSR); Worker Health, Hygiene & Training; Soil Amendments; Wildlife, Domestic Animals & Land Use; Ag Water (Preharvest); Ag Water (Postharvest); Postharvest Handling & Sanitation; Food Safety Plans
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