Costco voluntarily recalled 79,200 pounds of two types of its store-brand butter over the past month because their labels may not have said the products contain milk.

Due to a very basic error that could put consumers' health at risk, the major supermarket chain had to recall a large quantity of butter.

Costco recalled 80,000 pounds of butter whose packaging omitted the allergen warning 'Contains Milk.' It follows a far worse packaging error from Mattel last week.