subchapter_subject: "FOOD FOR HUMAN CONSUMPTION (CONTINUED)"
part_code: "179"
part_subject: "IRRADIATION IN THE PRODUCTION, PROCESSING AND HANDLING OF FOOD"
subpart_code: "B"
subpart_subject: "Radiation and Radiation Sources"
section_number: "179.41"
section_subject: "Pulsed light for the treatment of food."
cfr_reference: "21 CFR 179.41"
title_name: "Title 21"
title_subject: "Food and Drugs"
parts_covered: "Parts 170 to 199"
revised_date: "Revised as of April 1, 2019"
publication_date: "As of April 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
---
Pulsed light may be safely used for treatment of foods under the following conditions:
(a)The radiation sources consist of xenon flashlamps designed to emit broadband radiation consisting of wavelengths covering the range of 200 to 1,100 nanometers (nm), and operated so that the pulse duration is no longer than 2 milliseconds (msec);
(b)The treatment is used for surface microorganism control;
(c)Foods treated with pulsed light shall receive the minimum treatment reasonably required to accomplish the intended technical effect; and
(d)The total cumulative treatment shall not exceed 12.0 Joules/square centimeter (J/cm2.)