LUVERNE (AP) -- Isolated pockets of elevated carbon dioxide levels made 21 employees sick at the Gold'n Plump Poultry processing plant in Luverne, the company said Friday.
The plant was evacuated Thursday and production was halted. On Friday, production resumed.
Technical and safety experts said the elevated carbon dioxide levels were the result of a chilling process.
''CO2 is commonly used in the food industry to enhance product chilling for added food safety,'' said Julie Berling, Gold'n Plump marketing-corporate communication manager in St. Cloud.
Company experts examined the plant's carbon dioxide chilling process and recommend remedial solutions, which may include increasing ventilation or closing off an area.
An alternate chilling method using regular ice has been implemented and will be used until further remedial measures are taken.
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