Material Analysis
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HDPE food contact
Problem Phenomenon
HDPE food containers have odor, or the migration test fails
Cause Analysis
HDPE itself has good food contact safety, but additives and degradation products may migrate; the migration amount increases when in contact with high-temperature grease; misuse of non-food-grade grades leads to compliance failure
Solution
①Select FDA-compliant grades for food contact; ②perform migration verification according to the use temperature and contact medium; ③obtain the supplier's compliance statement; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
HDPE is the main material for food packaging; grade compliance plus migration verification is the application prerequisite; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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