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Produce Fermentation

Updated April 30, 2026
 Curtis Braun

Curtis Braun

SDSU Extension Food Safety Field Specialist

There is an increasing interest with food entrepreneurs and processors making non-heated-processed fermented food. Part of the increased interest in selling these types of products has to do with the passage of SD HB 1322 which allows processors to sell non-heated-processed fermented foods under the cottage food laws as long as they adhere to the laws by taking the state-certified online training and ensuring the food is consistently maintained and sold at a temperature that is at or below 41°F. In this article, we will explore the science and food safety of produce fermentation in the hope that processors will understand the process and risks with making naturally fermented vegetable products.