How to Wash Produce Using a Peracetic Acid (PAA) Solution

Robert Hadad, Extension Vegetable Specialist
Cornell Vegetable Program

This how-to guide will take you through the steps necessary to wash produce in a food safe manner. From calculation of sanitizer rates to washing procedures, many variables can affect the safety of produce on your farm. The guide details the materials you will need, preparation, calculating and mixing the peracetic acid solution, washing produce, and testing turbidity.

This publication is based upon work supported by USDA/NIFA under award number 2012-49200-20031.

How to Wash Produce Using a Peracetic Acid Solution, revised April 2018 (pdf; 1458KB)

SCRUB Twilight Workshop Series

September 1, 2021 : Bin Blitz

Experienced growers and UVM's Ag Engineering present new strategies and cleaning tools to increase the efficiency and efficacy of bin cleaning, sanitation and management practices. Lead growers show and tell their bin systems, with lessons learned. Participants leave with a plan to improve/implement new practices.

September 8, 2021 : Low Cost and High Value

Evaluate low-cost (either money or time) improvements that make a big difference. Experience growers show and tell the thrifty improvements they made and summarize lessons learned, including trade-offs of spending money (or not) to lower risks and increase efficiency. 

September 15, 2021 : Wash/Pack Floors

Learn to improve or repair a concrete floor so that it is smooth and easy to clean. This workshop highlights concrete repair, cleaning and sanitation techniques, water management, products and resources, as well as show and tell from experienced growers, and Chris Callahan from UVM's Extension Ag Engineering.

September 22, 2021 : Wash Water Management

Experienced growers and facilitators dig into the fundamentals of managing produce wash water, including show and tell with lessons learned about wash water management, use and monitoring of sanitizers. All participants leave with a plan to improve/implement new practices.

September 29, 2021 : Tools for Employee Management and Empowerment

Develop management strategies/systems to retain and empower high-value workers, while improving crew morale and culture. Learn from experienced managers of loyal and reliable crews, the pros and cons of their current management systems, and how they came to be. Participants leave with resources and a plan to improve/implement one or more new practices or strategies.

October 6, 2021 : Bubblers/Aerators for Greens Washing

For growers wanting to install or improve a greens bubbler/aerator. Get feedback from growers who built/improved their own systems. Examine designs and DYI resources, as well as perceived quality and efficiency gains from bubblers as compared to other washing methods. This workshop features a panel of New York growers!