中经评论：别把“陈粮”与“陈化粮”混为一谈

Core Viewpoint - The article emphasizes the importance of distinguishing between "old grain" (陈粮) and "aged grain" (陈化粮), clarifying that old grain is safe for consumption and meets national food safety standards, while aged grain is not suitable for consumption due to quality degradation [1][2]. Group 1: Definitions and Differences - Old grain refers to grain stored for over one year, which, despite reduced freshness, maintains good quality and meets nutritional and safety standards for food processing or animal feed [1]. - Aged grain is defined as grain that has deteriorated due to improper storage conditions or excessive storage time, leading to issues like mold and excessive aflatoxin, making it unsuitable for consumption [1][2]. Group 2: Historical Context and Improvements - The concept of aged grain emerged in the late 1990s when grain storage practices were inadequate, leading to a storage quality rate dropping to around 60% [2]. - With the implementation of a scientific grain rotation mechanism and modern storage technologies, the storage quality rate has significantly improved, with the central reserve grain storage quality rate rising to over 95% [2]. Group 3: Storage and Quality Control - Strict quality control measures are in place for both incoming and outgoing grain, including comprehensive assessments of moisture, impurities, and safety indicators, with a "one strike" policy for any non-compliance [3]. - A dynamic monitoring system is established within storage facilities, utilizing sensors and AI technology to track grain conditions and detect pest issues, ensuring immediate response to any quality concerns [3]. Group 4: Distribution and Utilization - The rotation of old grain is managed through various channels, including competitive sales on grain trading platforms and targeted supply to key food processing enterprises, ensuring quality products reach consumers [4]. - Grain nearing its expiration date is subjected to strict testing and may be repurposed for animal feed or industrial use, promoting resource efficiency and food safety [4].